2 * mke2fs.c - Make a ext2fs filesystem.
4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
5 * 2003, 2004, 2005 by Theodore Ts'o.
8 * This file may be redistributed under the terms of the GNU Public
13 /* Usage: mke2fs [options] device
15 * The device may be a block device or a image of one, but this isn't
16 * enforced (but it's not much fun on a character device :-).
19 #define _XOPEN_SOURCE 600
28 #include <sys/utsname.h>
29 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
46 #ifdef HAVE_SYS_IOCTL_H
47 #include <sys/ioctl.h>
51 #include <blkid/blkid.h>
53 #include "ext2fs/ext2_fs.h"
54 #include "ext2fs/ext2fsP.h"
55 #include "uuid/uuid.h"
57 #include "support/nls-enable.h"
58 #include "support/plausible.h"
59 #include "support/profile.h"
60 #include "support/prof_err.h"
61 #include "../version.h"
62 #include "support/quotaio.h"
64 #include "create_inode.h"
66 #define STRIDE_LENGTH 8
68 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
74 #define DISCARD_STEP_MB (2048)
76 extern int isatty(int);
77 extern FILE *fpopen(const char *cmd, const char *mode);
79 const char * program_name = "mke2fs";
80 static const char * device_name /* = NULL */;
82 /* Command line options */
86 static int super_only;
87 static int discard = 1; /* attempt to discard device before fs creation */
91 static int num_backups = 2; /* number of backup bg's for sparse_super2 */
92 static uid_t root_uid;
93 static gid_t root_gid;
97 static int lazy_itable_init;
98 static int packed_meta_blocks;
100 static char *bad_blocks_filename = NULL;
101 static __u32 fs_stride;
102 /* Initialize usr/grp quotas by default */
103 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
105 static blk64_t journal_location = ~0LL;
106 static int proceed_delay = -1;
107 static blk64_t dev_size;
109 static struct ext2_super_block fs_param;
110 static __u32 zero_buf[4];
111 static char *fs_uuid = NULL;
112 static char *creator_os;
113 static char *volume_label;
114 static char *mount_dir;
115 char *journal_device;
116 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
118 const char *src_root_dir; /* Copy files from the specified directory */
119 static char *undo_file;
121 static int android_sparse_file; /* -E android_sparse */
123 static profile_t profile;
125 static int sys_page_size = 4096;
127 static int errors_behavior = 0;
129 static void usage(void)
131 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
132 "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
133 "[-J journal-options]\n"
134 "\t[-G flex-group-size] [-N number-of-inodes] "
135 "[-d root-directory]\n"
136 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
137 "\t[-g blocks-per-group] [-L volume-label] "
138 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
139 "[-r fs-revision] [-E extended-option[,...]]\n"
140 "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
142 "\t[-jnqvDFSV] device [blocks-count]\n"),
147 static int int_log2(unsigned long long arg)
159 int int_log10(unsigned long long arg)
169 static int parse_version_number(const char *s)
171 int major, minor, rev;
177 major = strtol(cp, &endptr, 10);
178 if (cp == endptr || *endptr != '.')
181 minor = strtol(cp, &endptr, 10);
182 if (cp == endptr || *endptr != '.')
185 rev = strtol(cp, &endptr, 10);
188 return KERNEL_VERSION(major, minor, rev);
191 static int is_before_linux_ver(unsigned int major, unsigned int minor,
195 static int linux_version_code = -1;
201 if (linux_version_code < 0)
202 linux_version_code = parse_version_number(ut.release);
203 if (linux_version_code == 0)
206 return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
209 static int is_before_linux_ver(unsigned int major, unsigned int minor,
217 * Helper function for read_bb_file and test_disk
219 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
221 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
226 * Reads the bad blocks list from a file
228 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
229 const char *bad_blocks_file)
234 f = fopen(bad_blocks_file, "r");
236 com_err("read_bad_blocks_file", errno,
237 _("while trying to open %s"), bad_blocks_file);
240 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
243 com_err("ext2fs_read_bb_FILE", retval, "%s",
244 _("while reading in list of bad blocks from file"));
250 * Runs the badblocks program to test the disk
252 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
258 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
259 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
261 (unsigned long long) ext2fs_blocks_count(fs->super)-1);
263 printf(_("Running command: %s\n"), buf);
266 com_err("popen", errno,
267 _("while trying to run '%s'"), buf);
270 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
273 com_err("ext2fs_read_bb_FILE", retval, "%s",
274 _("while processing list of bad blocks from program"));
279 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
283 unsigned must_be_good;
285 badblocks_iterate bb_iter;
295 * The primary superblock and group descriptors *must* be
296 * good; if not, abort.
298 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
299 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
300 if (ext2fs_badblocks_list_test(bb_list, i)) {
301 fprintf(stderr, _("Block %d in primary "
302 "superblock/group descriptor area bad.\n"), i);
303 fprintf(stderr, _("Blocks %u through %u must be good "
304 "in order to build a filesystem.\n"),
305 fs->super->s_first_data_block, must_be_good);
306 fputs(_("Aborting....\n"), stderr);
312 * See if any of the bad blocks are showing up in the backup
313 * superblocks and/or group descriptors. If so, issue a
314 * warning and adjust the block counts appropriately.
316 group_block = fs->super->s_first_data_block +
317 fs->super->s_blocks_per_group;
319 for (i = 1; i < fs->group_desc_count; i++) {
321 for (j=0; j < fs->desc_blocks+1; j++) {
322 if (ext2fs_badblocks_list_test(bb_list,
326 _("Warning: the backup superblock/group descriptors at block %u contain\n"
330 group = ext2fs_group_of_blk2(fs, group_block+j);
331 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
332 ext2fs_group_desc_csum_set(fs, group);
333 ext2fs_free_blocks_count_add(fs->super, 1);
336 group_block += fs->super->s_blocks_per_group;
340 * Mark all the bad blocks as used...
342 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
344 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
345 _("while marking bad blocks as used"));
348 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
349 ext2fs_mark_block_bitmap2(fs->block_map, blk);
350 ext2fs_badblocks_list_iterate_end(bb_iter);
353 static void write_reserved_inodes(ext2_filsys fs)
357 struct ext2_inode *inode;
359 retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
361 com_err("inode_init", retval, _("while allocating memory"));
365 for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
366 retval = ext2fs_write_inode_full(fs, ino, inode,
367 EXT2_INODE_SIZE(fs->super));
369 com_err("ext2fs_write_inode_full", retval,
370 _("while writing reserved inodes"));
375 ext2fs_free_mem(&inode);
378 static errcode_t packed_allocate_tables(ext2_filsys fs)
384 for (i = 0; i < fs->group_desc_count; i++) {
385 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
388 ext2fs_block_alloc_stats2(fs, goal, +1);
389 ext2fs_block_bitmap_loc_set(fs, i, goal);
391 for (i = 0; i < fs->group_desc_count; i++) {
392 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
395 ext2fs_block_alloc_stats2(fs, goal, +1);
396 ext2fs_inode_bitmap_loc_set(fs, i, goal);
398 for (i = 0; i < fs->group_desc_count; i++) {
399 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
400 retval = ext2fs_get_free_blocks2(fs, goal, end,
401 fs->inode_blocks_per_group,
402 fs->block_map, &goal);
405 ext2fs_block_alloc_stats_range(fs, goal,
406 fs->inode_blocks_per_group, +1);
407 ext2fs_inode_table_loc_set(fs, i, goal);
408 ext2fs_group_desc_csum_set(fs, i);
413 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
419 struct ext2fs_numeric_progress_struct progress;
421 ext2fs_numeric_progress_init(fs, &progress,
422 _("Writing inode tables: "),
423 fs->group_desc_count);
425 for (i = 0; i < fs->group_desc_count; i++) {
426 ext2fs_numeric_progress_update(fs, &progress, i);
428 blk = ext2fs_inode_table_loc(fs, i);
429 num = fs->inode_blocks_per_group;
432 num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
433 ext2fs_bg_itable_unused(fs, i)) *
434 EXT2_INODE_SIZE(fs->super),
435 EXT2_BLOCK_SIZE(fs->super));
436 if (!lazy_flag || itable_zeroed) {
437 /* The kernel doesn't need to zero the itable blocks */
438 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
439 ext2fs_group_desc_csum_set(fs, i);
441 if (!itable_zeroed) {
442 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
444 fprintf(stderr, _("\nCould not write %d "
445 "blocks in inode table starting at %llu: %s\n"),
446 num, (unsigned long long) blk,
447 error_message(retval));
452 if (sync_kludge == 1)
453 io_channel_flush(fs->io);
454 else if ((i % sync_kludge) == 0)
455 io_channel_flush(fs->io);
458 ext2fs_numeric_progress_close(fs, &progress,
461 /* Reserved inodes must always have correct checksums */
462 if (ext2fs_has_feature_metadata_csum(fs->super))
463 write_reserved_inodes(fs);
466 static void create_root_dir(ext2_filsys fs)
469 struct ext2_inode inode;
471 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
473 com_err("ext2fs_mkdir", retval, "%s",
474 _("while creating root dir"));
477 if (root_uid != 0 || root_gid != 0) {
478 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
480 com_err("ext2fs_read_inode", retval, "%s",
481 _("while reading root inode"));
485 inode.i_uid = root_uid;
486 ext2fs_set_i_uid_high(inode, root_uid >> 16);
487 inode.i_gid = root_gid;
488 ext2fs_set_i_gid_high(inode, root_gid >> 16);
490 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
492 com_err("ext2fs_write_inode", retval, "%s",
493 _("while setting root inode ownership"));
499 static void create_lost_and_found(ext2_filsys fs)
501 unsigned int lpf_size = 0;
504 const char *name = "lost+found";
508 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
510 com_err("ext2fs_mkdir", retval, "%s",
511 _("while creating /lost+found"));
515 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
517 com_err("ext2_lookup", retval, "%s",
518 _("while looking up /lost+found"));
522 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
523 /* Ensure that lost+found is at least 2 blocks, so we always
524 * test large empty blocks for big-block filesystems. */
525 if ((lpf_size += fs->blocksize) >= 16*1024 &&
526 lpf_size >= 2 * fs->blocksize)
528 retval = ext2fs_expand_dir(fs, ino);
530 com_err("ext2fs_expand_dir", retval, "%s",
531 _("while expanding /lost+found"));
537 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
541 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
542 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
543 retval = ext2fs_update_bb_inode(fs, bb_list);
545 com_err("ext2fs_update_bb_inode", retval, "%s",
546 _("while setting bad block inode"));
552 static void reserve_inodes(ext2_filsys fs)
556 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
557 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
558 ext2fs_mark_ib_dirty(fs);
561 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
562 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
563 #define BSD_LABEL_OFFSET 64
565 static void zap_sector(ext2_filsys fs, int sect, int nsect)
571 buf = calloc(512, nsect);
573 printf(_("Out of memory erasing sectors %d-%d\n"),
574 sect, sect + nsect - 1);
579 /* Check for a BSD disklabel, and don't erase it if so */
580 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
583 _("Warning: could not read block 0: %s\n"),
584 error_message(retval));
586 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
587 if ((*magic == BSD_DISKMAGIC) ||
588 (*magic == BSD_MAGICDISK)) {
595 memset(buf, 0, 512*nsect);
596 io_channel_set_blksize(fs->io, 512);
597 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
598 io_channel_set_blksize(fs->io, fs->blocksize);
601 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
602 sect, error_message(retval));
605 static void create_journal_dev(ext2_filsys fs)
607 struct ext2fs_numeric_progress_struct progress;
610 blk64_t blk, err_blk;
611 int c, count, err_count;
612 struct ext2fs_journal_params jparams;
614 retval = ext2fs_get_journal_params(&jparams, fs);
616 com_err("create_journal_dev", retval, "%s",
617 _("while splitting the journal size"));
621 retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
623 com_err("create_journal_dev", retval, "%s",
624 _("while initializing journal superblock"));
628 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
629 goto write_superblock;
631 ext2fs_numeric_progress_init(fs, &progress,
632 _("Zeroing journal device: "),
633 ext2fs_blocks_count(fs->super));
635 count = ext2fs_blocks_count(fs->super);
641 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
643 com_err("create_journal_dev", retval,
644 _("while zeroing journal device "
645 "(block %llu, count %d)"),
646 (unsigned long long) err_blk, err_count);
651 ext2fs_numeric_progress_update(fs, &progress, blk);
654 ext2fs_numeric_progress_close(fs, &progress, NULL);
656 retval = io_channel_write_blk64(fs->io,
657 fs->super->s_first_data_block+1,
659 (void) ext2fs_free_mem(&buf);
661 com_err("create_journal_dev", retval, "%s",
662 _("while writing journal superblock"));
667 static void show_stats(ext2_filsys fs)
669 struct ext2_super_block *s = fs->super;
676 printf(_("Creating filesystem with %llu %dk blocks and "
678 (unsigned long long) ext2fs_blocks_count(s),
679 fs->blocksize >> 10, s->s_inodes_count);
683 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
684 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
685 (unsigned long long) (ext2fs_blocks_count(&fs_param) -
686 ext2fs_blocks_count(s)));
688 printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
690 os = e2p_os2string(fs->super->s_creator_os);
692 printf(_("OS type: %s\n"), os);
694 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
695 s->s_log_block_size);
696 if (ext2fs_has_feature_bigalloc(fs->super))
697 printf(_("Cluster size=%u (log=%u)\n"),
698 fs->blocksize << fs->cluster_ratio_bits,
699 s->s_log_cluster_size);
701 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
702 s->s_log_cluster_size);
703 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
704 s->s_raid_stride, s->s_raid_stripe_width);
705 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
706 (unsigned long long) ext2fs_blocks_count(s));
707 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
708 (unsigned long long) ext2fs_r_blocks_count(s),
709 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
710 printf(_("First data block=%u\n"), s->s_first_data_block);
711 if (root_uid != 0 || root_gid != 0)
712 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
713 if (s->s_reserved_gdt_blocks)
714 printf(_("Maximum filesystem blocks=%lu\n"),
715 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
716 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
717 if (fs->group_desc_count > 1)
718 printf(_("%u block groups\n"), fs->group_desc_count);
720 printf(_("%u block group\n"), fs->group_desc_count);
721 if (ext2fs_has_feature_bigalloc(fs->super))
722 printf(_("%u blocks per group, %u clusters per group\n"),
723 s->s_blocks_per_group, s->s_clusters_per_group);
725 printf(_("%u blocks per group, %u fragments per group\n"),
726 s->s_blocks_per_group, s->s_clusters_per_group);
727 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
730 if (fs->group_desc_count == 1) {
735 if (!e2p_is_null_uuid(s->s_uuid))
736 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
737 printf("%s", _("Superblock backups stored on blocks: "));
738 group_block = s->s_first_data_block;
740 for (i = 1; i < fs->group_desc_count; i++) {
741 group_block += s->s_blocks_per_group;
742 if (!ext2fs_bg_has_super(fs, i))
746 need = int_log10(group_block) + 2;
747 if (need > col_left) {
752 printf("%llu", (unsigned long long) group_block);
758 * Returns true if making a file system for the Hurd, else 0
760 static int for_hurd(const char *os)
770 return (atoi(os) == EXT2_OS_HURD);
771 return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
775 * Set the S_CREATOR_OS field. Return true if OS is known,
778 static int set_os(struct ext2_super_block *sb, char *os)
781 sb->s_creator_os = atoi (os);
782 else if (strcasecmp(os, "linux") == 0)
783 sb->s_creator_os = EXT2_OS_LINUX;
784 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
785 sb->s_creator_os = EXT2_OS_HURD;
786 else if (strcasecmp(os, "freebsd") == 0)
787 sb->s_creator_os = EXT2_OS_FREEBSD;
788 else if (strcasecmp(os, "lites") == 0)
789 sb->s_creator_os = EXT2_OS_LITES;
795 #define PATH_SET "PATH=/sbin"
797 static void parse_extended_opts(struct ext2_super_block *param,
800 char *buf, *token, *next, *p, *arg, *badopt = 0;
805 char *encoding_flags = NULL;
810 fprintf(stderr, "%s",
811 _("Couldn't allocate memory to parse options!\n"));
815 for (token = buf; token && *token; token = next) {
816 p = strchr(token, ',');
822 arg = strchr(token, '=');
827 if (strcmp(token, "desc-size") == 0 ||
828 strcmp(token, "desc_size") == 0) {
831 if (!ext2fs_has_feature_64bit(&fs_param)) {
833 _("%s requires '-O 64bit'\n"), token);
837 if (param->s_reserved_gdt_blocks != 0) {
839 _("'%s' must be before 'resize=%u'\n"),
840 token, param->s_reserved_gdt_blocks);
849 desc_size = strtoul(arg, &p, 0);
850 if (*p || (desc_size & (desc_size - 1))) {
852 _("Invalid desc_size: '%s'\n"), arg);
856 param->s_desc_size = desc_size;
857 } else if (strcmp(token, "hash_seed") == 0) {
864 (unsigned char *)param->s_hash_seed) != 0) {
866 _("Invalid hash seed: %s\n"), arg);
870 } else if (strcmp(token, "offset") == 0) {
876 offset = strtoull(arg, &p, 0);
878 fprintf(stderr, _("Invalid offset: %s\n"),
883 } else if (strcmp(token, "mmp_update_interval") == 0) {
889 param->s_mmp_update_interval = strtoul(arg, &p, 0);
892 _("Invalid mmp_update_interval: %s\n"),
897 } else if (strcmp(token, "no_copy_xattrs") == 0) {
900 } else if (strcmp(token, "num_backup_sb") == 0) {
906 num_backups = strtoul(arg, &p, 0);
907 if (*p || num_backups > 2) {
909 _("Invalid # of backup "
910 "superblocks: %s\n"),
915 } else if (strcmp(token, "packed_meta_blocks") == 0) {
917 packed_meta_blocks = strtoul(arg, &p, 0);
919 packed_meta_blocks = 1;
920 if (packed_meta_blocks)
921 journal_location = 0;
922 } else if (strcmp(token, "stride") == 0) {
928 param->s_raid_stride = strtoul(arg, &p, 0);
931 _("Invalid stride parameter: %s\n"),
936 } else if (strcmp(token, "stripe-width") == 0 ||
937 strcmp(token, "stripe_width") == 0) {
943 param->s_raid_stripe_width = strtoul(arg, &p, 0);
946 _("Invalid stripe-width parameter: %s\n"),
951 } else if (!strcmp(token, "resize")) {
953 unsigned long bpg, rsv_groups;
954 unsigned long group_desc_count, desc_blocks;
955 unsigned int gdpb, blocksize;
964 resize = parse_num_blocks2(arg,
965 param->s_log_block_size);
969 _("Invalid resize parameter: %s\n"),
974 if (resize <= ext2fs_blocks_count(param)) {
975 fprintf(stderr, "%s",
976 _("The resize maximum must be greater "
977 "than the filesystem size.\n"));
982 blocksize = EXT2_BLOCK_SIZE(param);
983 bpg = param->s_blocks_per_group;
986 gdpb = EXT2_DESC_PER_BLOCK(param);
987 group_desc_count = (__u32) ext2fs_div64_ceil(
988 ext2fs_blocks_count(param), bpg);
989 desc_blocks = (group_desc_count +
991 rsv_groups = ext2fs_div64_ceil(resize, bpg);
992 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
994 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
995 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
998 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
999 fprintf(stderr, "%s",
1000 _("On-line resizing not supported with revision 0 filesystems\n"));
1004 ext2fs_set_feature_resize_inode(param);
1006 param->s_reserved_gdt_blocks = rsv_gdb;
1008 } else if (!strcmp(token, "test_fs")) {
1009 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1010 } else if (!strcmp(token, "lazy_itable_init")) {
1012 lazy_itable_init = strtoul(arg, &p, 0);
1014 lazy_itable_init = 1;
1015 } else if (!strcmp(token, "lazy_journal_init")) {
1017 journal_flags |= strtoul(arg, &p, 0) ?
1018 EXT2_MKJOURNAL_LAZYINIT : 0;
1020 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1021 } else if (!strcmp(token, "root_owner")) {
1023 root_uid = strtoul(arg, &p, 0);
1026 _("Invalid root_owner: '%s'\n"),
1032 root_gid = strtoul(p, &p, 0);
1035 _("Invalid root_owner: '%s'\n"),
1041 root_uid = getuid();
1042 root_gid = getgid();
1044 } else if (!strcmp(token, "discard")) {
1046 } else if (!strcmp(token, "nodiscard")) {
1048 } else if (!strcmp(token, "quotatype")) {
1049 char *errtok = NULL;
1057 ret = parse_quota_types(arg, "atype_bits, &errtok);
1061 "Failed to parse quota type at %s", errtok);
1064 com_err(program_name, ret,
1065 "while parsing quota type");
1070 } else if (!strcmp(token, "android_sparse")) {
1071 android_sparse_file = 1;
1072 } else if (!strcmp(token, "encoding")) {
1078 encoding = e2p_str2encoding(arg);
1080 fprintf(stderr, _("Invalid encoding: %s"), arg);
1084 param->s_encoding = encoding;
1085 ext2fs_set_feature_casefold(param);
1086 } else if (!strcmp(token, "encoding_flags")) {
1091 encoding_flags = arg;
1098 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1099 "Extended options are separated by commas, "
1100 "and may take an argument which\n"
1101 "\tis set off by an equals ('=') sign.\n\n"
1102 "Valid extended options are:\n"
1103 "\tmmp_update_interval=<interval>\n"
1104 "\tnum_backup_sb=<0|1|2>\n"
1105 "\tstride=<RAID per-disk data chunk in blocks>\n"
1106 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1107 "\toffset=<offset to create the file system>\n"
1108 "\tresize=<resize maximum size in blocks>\n"
1109 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1110 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1111 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1112 "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1116 "\tencoding=<encoding>\n"
1117 "\tencoding_flags=<flags>\n"
1118 "\tquotatype=<quota type(s) to be enabled>\n\n"),
1119 badopt ? badopt : "");
1123 if (param->s_raid_stride &&
1124 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1125 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1126 "multiple of stride %u.\n\n"),
1127 param->s_raid_stripe_width, param->s_raid_stride);
1129 if (ext2fs_has_feature_casefold(param)) {
1130 param->s_encoding_flags =
1131 e2p_get_encoding_flags(param->s_encoding);
1133 if (encoding_flags &&
1134 e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1135 ¶m->s_encoding_flags)) {
1136 fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1141 } else if (encoding_flags) {
1142 fprintf(stderr, _("error: An encoding must be explicitly "
1143 "specified when passing encoding-flags\n"));
1151 static __u32 ok_features[3] = {
1153 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1154 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1155 EXT2_FEATURE_COMPAT_DIR_INDEX |
1156 EXT2_FEATURE_COMPAT_EXT_ATTR |
1157 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1158 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1159 EXT4_FEATURE_COMPAT_STABLE_INODES,
1161 EXT2_FEATURE_INCOMPAT_FILETYPE|
1162 EXT3_FEATURE_INCOMPAT_EXTENTS|
1163 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1164 EXT2_FEATURE_INCOMPAT_META_BG|
1165 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1166 EXT4_FEATURE_INCOMPAT_EA_INODE|
1167 EXT4_FEATURE_INCOMPAT_MMP |
1168 EXT4_FEATURE_INCOMPAT_64BIT|
1169 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1170 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1171 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1172 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1173 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1175 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1176 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1177 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1178 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1179 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1180 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1181 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1182 EXT4_FEATURE_RO_COMPAT_QUOTA|
1183 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1184 EXT4_FEATURE_RO_COMPAT_PROJECT|
1185 EXT4_FEATURE_RO_COMPAT_VERITY
1189 static void syntax_err_report(const char *filename, long err, int line_num)
1192 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1193 filename, line_num, error_message(err));
1197 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1199 static void edit_feature(const char *str, __u32 *compat_array)
1204 if (e2p_edit_feature(str, compat_array, ok_features)) {
1205 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1211 static void edit_mntopts(const char *str, __u32 *mntopts)
1216 if (e2p_edit_mntopts(str, mntopts, ~0)) {
1217 fprintf(stderr, _("Invalid mount option set: %s\n"),
1229 static errcode_t init_list(struct str_list *sl)
1233 sl->list = malloc((sl->max+1) * sizeof(char *));
1240 static errcode_t push_string(struct str_list *sl, const char *str)
1244 if (sl->num >= sl->max) {
1246 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1249 sl->list = new_list;
1251 sl->list[sl->num] = malloc(strlen(str)+1);
1252 if (sl->list[sl->num] == 0)
1254 strcpy(sl->list[sl->num], str);
1256 sl->list[sl->num] = 0;
1260 static void print_str_list(char **list)
1264 for (cpp = list; *cpp; cpp++) {
1265 printf("'%s'", *cpp);
1267 fputs(", ", stdout);
1269 fputc('\n', stdout);
1273 * Return TRUE if the profile has the given subsection
1275 static int profile_has_subsection(profile_t prof, const char *section,
1276 const char *subsection)
1279 const char *names[4];
1284 names[1] = subsection;
1287 if (profile_iterator_create(prof, names,
1288 PROFILE_ITER_LIST_SECTION |
1289 PROFILE_ITER_RELATIONS_ONLY, &state))
1292 if ((profile_iterator(&state, &name, 0) == 0) && name) {
1297 profile_iterator_free(&state);
1301 static char **parse_fs_type(const char *fs_type,
1302 const char *usage_types,
1303 struct ext2_super_block *sb,
1304 blk64_t fs_blocks_count,
1307 const char *ext_type = 0;
1309 char *profile_type = 0;
1311 const char *size_type;
1312 struct str_list list;
1313 unsigned long long meg;
1314 int is_hurd = for_hurd(creator_os);
1316 if (init_list(&list))
1323 else if (!strcmp(program_name, "mke3fs"))
1325 else if (!strcmp(program_name, "mke4fs"))
1327 else if (progname) {
1328 ext_type = strrchr(progname, '/');
1332 ext_type = progname;
1334 if (!strncmp(ext_type, "mkfs.", 5)) {
1336 if (ext_type[0] == 0)
1343 profile_get_string(profile, "defaults", "fs_type", 0,
1344 "ext2", &profile_type);
1345 ext_type = profile_type;
1346 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1351 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1352 strcmp(ext_type, "ext2")) {
1353 printf(_("\nYour mke2fs.conf file does not define the "
1354 "%s filesystem type.\n"), ext_type);
1355 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1356 !strcmp(ext_type, "ext4dev")) {
1357 printf("%s", _("You probably need to install an "
1358 "updated mke2fs.conf file.\n\n"));
1361 printf("%s", _("Aborting...\n"));
1366 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1367 if (fs_blocks_count < 3 * meg)
1368 size_type = "floppy";
1369 else if (fs_blocks_count < 512 * meg)
1370 size_type = "small";
1371 else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1372 size_type = "default";
1373 else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1379 usage_types = size_type;
1381 parse_str = malloc(strlen(usage_types)+1);
1387 strcpy(parse_str, usage_types);
1390 push_string(&list, ext_type);
1393 t = strchr(cp, ',');
1398 if (profile_has_subsection(profile, "fs_types", cp))
1399 push_string(&list, cp);
1400 else if (strcmp(cp, "default") != 0)
1402 _("\nWarning: the fs_type %s is not "
1403 "defined in mke2fs.conf\n\n"),
1414 push_string(&list, "hurd");
1418 char *get_string_from_profile(char **types, const char *opt,
1419 const char *def_val)
1424 for (i=0; types[i]; i++);
1425 for (i-=1; i >=0 ; i--) {
1426 profile_get_string(profile, "fs_types", types[i],
1431 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1435 int get_int_from_profile(char **types, const char *opt, int def_val)
1440 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1441 for (cpp = types; *cpp; cpp++)
1442 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1446 static unsigned int get_uint_from_profile(char **types, const char *opt,
1447 unsigned int def_val)
1452 profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1453 for (cpp = types; *cpp; cpp++)
1454 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1458 static double get_double_from_profile(char **types, const char *opt,
1464 profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1465 for (cpp = types; *cpp; cpp++)
1466 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1470 int get_bool_from_profile(char **types, const char *opt, int def_val)
1475 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1476 for (cpp = types; *cpp; cpp++)
1477 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1481 extern const char *mke2fs_default_profile;
1482 static const char *default_files[] = { "<default>", 0 };
1484 struct device_param {
1485 unsigned long min_io; /* prefered minimum IO size */
1486 unsigned long opt_io; /* optimal IO size */
1487 unsigned long alignment_offset; /* alignment offset wrt physical block size */
1488 unsigned int dax:1; /* supports dax? */
1491 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1493 * Sets the geometry of a device (stripe/stride), and returns the
1494 * device's alignment offset, if any, or a negative error.
1496 static int get_device_geometry(const char *file,
1497 unsigned int blocksize,
1498 unsigned int psector_size,
1499 struct device_param *dev_param)
1504 struct stat statbuf;
1506 memset(dev_param, 0, sizeof(*dev_param));
1508 /* Nothing to do for a regular file */
1509 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1512 pr = blkid_new_probe_from_filename(file);
1516 tp = blkid_probe_get_topology(pr);
1520 dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1521 dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1522 if ((dev_param->min_io == 0) && (psector_size > blocksize))
1523 dev_param->min_io = psector_size;
1524 if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1525 dev_param->opt_io = dev_param->min_io;
1526 if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1527 dev_param->opt_io = psector_size;
1529 dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1530 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1531 dev_param->dax = blkid_topology_get_dax(tp);
1535 blkid_free_probe(pr);
1540 static void PRS(int argc, char *argv[])
1543 int cluster_size = 0;
1545 int explicit_fssize = 0;
1547 int inode_ratio = 0;
1549 unsigned long flex_bg_size = 0;
1550 double reserved_ratio = -1.0;
1551 int lsector_size = 0, psector_size = 0;
1552 int show_version_only = 0, is_device = 0;
1553 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1555 char * oldpath = getenv("PATH");
1556 char * extended_opts = 0;
1558 char * usage_types = 0;
1560 * NOTE: A few words about fs_blocks_count and blocksize:
1562 * Initially, blocksize is set to zero, which implies 1024.
1563 * If -b is specified, blocksize is updated to the user's value.
1565 * Next, the device size or the user's "blocks" command line argument
1566 * is used to set fs_blocks_count; the units are blocksize.
1568 * Later, if blocksize hasn't been set and the profile specifies a
1569 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1570 * appropriately. Note the change in units!
1572 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1574 blk64_t fs_blocks_count = 0;
1576 int s_opt = -1, r_opt = -1;
1577 char *fs_features = 0;
1578 int fs_features_size = 0;
1581 int pathlen = sizeof(PATH_SET) + 1;
1582 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1583 struct device_param dev_param;
1587 pathlen += strlen(oldpath);
1588 newpath = malloc(pathlen);
1590 fprintf(stderr, "%s",
1591 _("Couldn't allocate memory for new PATH.\n"));
1594 strcpy(newpath, PATH_SET);
1596 /* Update our PATH to include /sbin */
1598 strcat (newpath, ":");
1599 strcat (newpath, oldpath);
1603 /* Determine the system page size if possible */
1605 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1606 #define _SC_PAGESIZE _SC_PAGE_SIZE
1609 sysval = sysconf(_SC_PAGESIZE);
1611 sys_page_size = sysval;
1612 #endif /* _SC_PAGESIZE */
1613 #endif /* HAVE_SYSCONF */
1615 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1617 profile_set_syntax_err_cb(syntax_err_report);
1618 retval = profile_init(config_fn, &profile);
1619 if (retval == ENOENT) {
1620 retval = profile_init(default_files, &profile);
1623 retval = profile_set_default(profile, mke2fs_default_profile);
1626 } else if (retval) {
1628 fprintf(stderr, _("Couldn't init profile successfully"
1629 " (error: %ld).\n"), retval);
1633 setbuf(stdout, NULL);
1634 setbuf(stderr, NULL);
1635 add_error_table(&et_ext2_error_table);
1636 add_error_table(&et_prof_error_table);
1637 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1638 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1640 if (is_before_linux_ver(2, 2, 0))
1641 fs_param.s_rev_level = 0;
1643 if (argc && *argv) {
1644 program_name = get_progname(*argv);
1646 /* If called as mkfs.ext3, create a journal inode */
1647 if (!strcmp(program_name, "mkfs.ext3") ||
1648 !strcmp(program_name, "mke3fs"))
1652 while ((c = getopt (argc, argv,
1653 "b:cd:e:g:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:Vz:")) != EOF) {
1656 blocksize = parse_num_blocks2(optarg, -1);
1657 b = (blocksize > 0) ? blocksize : -blocksize;
1658 if (b < EXT2_MIN_BLOCK_SIZE ||
1659 b > EXT2_MAX_BLOCK_SIZE) {
1660 com_err(program_name, 0,
1661 _("invalid block size - %s"), optarg);
1664 if (blocksize > 4096)
1665 fprintf(stderr, _("Warning: blocksize %d not "
1666 "usable on most systems.\n"),
1669 fs_param.s_log_block_size =
1670 int_log2(blocksize >>
1671 EXT2_MIN_BLOCK_LOG_SIZE);
1673 case 'c': /* Check for bad blocks */
1677 cluster_size = parse_num_blocks2(optarg, -1);
1678 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1679 cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1680 com_err(program_name, 0,
1681 _("invalid cluster size - %s"),
1687 src_root_dir = optarg;
1693 com_err(program_name, 0, "%s",
1694 _("'-R' is deprecated, use '-E' instead"));
1697 extended_opts = optarg;
1700 if (strcmp(optarg, "continue") == 0)
1701 errors_behavior = EXT2_ERRORS_CONTINUE;
1702 else if (strcmp(optarg, "remount-ro") == 0)
1703 errors_behavior = EXT2_ERRORS_RO;
1704 else if (strcmp(optarg, "panic") == 0)
1705 errors_behavior = EXT2_ERRORS_PANIC;
1707 com_err(program_name, 0,
1708 _("bad error behavior - %s"),
1717 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1719 com_err(program_name, 0, "%s",
1720 _("Illegal number for blocks per group"));
1723 if ((fs_param.s_blocks_per_group % 8) != 0) {
1724 com_err(program_name, 0, "%s",
1725 _("blocks per group must be multiple of 8"));
1730 flex_bg_size = strtoul(optarg, &tmp, 0);
1732 com_err(program_name, 0, "%s",
1733 _("Illegal number for flex_bg size"));
1736 if (flex_bg_size < 1 ||
1737 (flex_bg_size & (flex_bg_size-1)) != 0) {
1738 com_err(program_name, 0, "%s",
1739 _("flex_bg size must be a power of 2"));
1742 if (flex_bg_size > MAX_32_NUM) {
1743 com_err(program_name, 0,
1744 _("flex_bg size (%lu) must be less than"
1745 " or equal to 2^31"), flex_bg_size);
1750 inode_ratio = parse_num_blocks(optarg, -1);
1751 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1752 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1753 com_err(program_name, 0,
1754 _("invalid inode ratio %s (min %d/max %d)"),
1755 optarg, EXT2_MIN_BLOCK_SIZE,
1756 EXT2_MAX_BLOCK_SIZE * 1024);
1761 inode_size = strtoul(optarg, &tmp, 0);
1763 com_err(program_name, 0,
1764 _("invalid inode size - %s"), optarg);
1771 if (!journal_fc_size)
1772 journal_fc_size = -1;
1775 parse_journal_opts(optarg);
1778 fprintf(stderr, "%s",
1779 _("Warning: -K option is deprecated and "
1780 "should not be used anymore. Use "
1781 "\'-E nodiscard\' extended option "
1786 bad_blocks_filename = realloc(bad_blocks_filename,
1787 strlen(optarg) + 1);
1788 if (!bad_blocks_filename) {
1789 com_err(program_name, ENOMEM, "%s",
1790 _("in malloc for bad_blocks_filename"));
1793 strcpy(bad_blocks_filename, optarg);
1796 volume_label = optarg;
1797 if (strlen(volume_label) > EXT2_LABEL_LEN) {
1798 volume_label[EXT2_LABEL_LEN] = '\0';
1799 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1804 reserved_ratio = strtod(optarg, &tmp);
1805 if ( *tmp || reserved_ratio > 50 ||
1806 reserved_ratio < 0) {
1807 com_err(program_name, 0,
1808 _("invalid reserved blocks percent - %s"),
1820 num_inodes = strtoul(optarg, &tmp, 0);
1822 com_err(program_name, 0,
1823 _("bad num inodes - %s"), optarg);
1828 creator_os = optarg;
1831 retval = ext2fs_resize_mem(fs_features_size,
1832 fs_features_size + 1 + strlen(optarg),
1835 com_err(program_name, retval,
1836 _("while allocating fs_feature string"));
1839 if (fs_features_size)
1840 strcat(fs_features, ",");
1843 strcat(fs_features, optarg);
1844 fs_features_size += 1 + strlen(optarg);
1850 r_opt = strtoul(optarg, &tmp, 0);
1852 com_err(program_name, 0,
1853 _("bad revision level - %s"), optarg);
1856 if (r_opt > EXT2_MAX_SUPP_REV) {
1857 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1858 _("while trying to create revision %d"), r_opt);
1861 fs_param.s_rev_level = r_opt;
1863 case 's': /* deprecated */
1864 s_opt = atoi(optarg);
1871 com_err(program_name, 0, "%s",
1872 _("The -t option may only be used once"));
1875 fs_type = strdup(optarg);
1879 com_err(program_name, 0, "%s",
1880 _("The -T option may only be used once"));
1883 usage_types = strdup(optarg);
1892 /* Print version number and exit */
1893 show_version_only++;
1902 if ((optind == argc) && !show_version_only)
1904 device_name = argv[optind++];
1906 if (!quiet || show_version_only)
1907 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1910 if (show_version_only) {
1911 fprintf(stderr, _("\tUsing %s\n"),
1912 error_message(EXT2_ET_BASE));
1917 * If there's no blocksize specified and there is a journal
1918 * device, use it to figure out the blocksize
1920 if (blocksize <= 0 && journal_device) {
1924 #ifdef CONFIG_TESTIO_DEBUG
1925 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1926 io_ptr = test_io_manager;
1927 test_io_backing_manager = unix_io_manager;
1930 io_ptr = unix_io_manager;
1931 retval = ext2fs_open(journal_device,
1932 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1935 com_err(program_name, retval,
1936 _("while trying to open journal device %s\n"),
1940 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1941 com_err(program_name, 0,
1942 _("Journal dev blocksize (%d) smaller than "
1943 "minimum blocksize %d\n"), jfs->blocksize,
1947 blocksize = jfs->blocksize;
1948 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1949 fs_param.s_log_block_size =
1950 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1951 ext2fs_close_free(&jfs);
1954 if (optind < argc) {
1955 fs_blocks_count = parse_num_blocks2(argv[optind++],
1956 fs_param.s_log_block_size);
1957 if (!fs_blocks_count) {
1958 com_err(program_name, 0,
1959 _("invalid blocks '%s' on device '%s'"),
1960 argv[optind - 1], device_name);
1967 profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1969 tmp = getenv("MKE2FS_SYNC");
1971 sync_kludge = atoi(tmp);
1973 profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1976 if (fs_blocks_count)
1977 explicit_fssize = 1;
1979 check_mount(device_name, force, _("filesystem"));
1981 /* Determine the size of the device (if possible) */
1982 if (noaction && fs_blocks_count) {
1983 dev_size = fs_blocks_count;
1986 retval = ext2fs_get_device_size2(device_name,
1987 EXT2_BLOCK_SIZE(&fs_param),
1989 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1990 com_err(program_name, retval, "%s",
1991 _("while trying to determine filesystem size"));
1994 if (!fs_blocks_count) {
1995 if (retval == EXT2_ET_UNIMPLEMENTED) {
1996 com_err(program_name, 0, "%s",
1997 _("Couldn't determine device size; you "
1998 "must specify\nthe size of the "
2002 if (dev_size == 0) {
2003 com_err(program_name, 0, "%s",
2004 _("Device size reported to be zero. "
2005 "Invalid partition specified, or\n\t"
2006 "partition table wasn't reread "
2007 "after running fdisk, due to\n\t"
2008 "a modified partition being busy "
2009 "and in use. You may need to reboot\n\t"
2010 "to re-read your partition table.\n"
2014 fs_blocks_count = dev_size;
2015 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2016 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2017 EXT2_BLOCK_SIZE(&fs_param))-1));
2019 } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2020 com_err(program_name, 0, "%s",
2021 _("Filesystem larger than apparent device size."));
2022 proceed_question(proceed_delay);
2026 profile_get_string(profile, "devices", device_name,
2027 "fs_type", 0, &fs_type);
2029 profile_get_string(profile, "devices", device_name,
2030 "usage_types", 0, &usage_types);
2033 * We have the file system (or device) size, so we can now
2034 * determine the appropriate file system types so the fs can
2035 * be appropriately configured.
2037 fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2038 fs_blocks_count ? fs_blocks_count : dev_size,
2041 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2045 /* Figure out what features should be enabled */
2048 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2049 tmp = get_string_from_profile(fs_types, "base_features",
2050 "sparse_super,large_file,filetype,resize_inode,dir_index");
2051 edit_feature(tmp, &fs_param.s_feature_compat);
2054 /* And which mount options as well */
2055 tmp = get_string_from_profile(fs_types, "default_mntopts",
2057 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2061 for (cpp = fs_types; *cpp; cpp++) {
2063 profile_get_string(profile, "fs_types", *cpp,
2064 "features", "", &tmp);
2066 edit_feature(tmp, &fs_param.s_feature_compat);
2070 tmp = get_string_from_profile(fs_types, "default_features",
2073 /* Mask off features which aren't supported by the Hurd */
2074 if (for_hurd(creator_os)) {
2075 ext2fs_clear_feature_filetype(&fs_param);
2076 ext2fs_clear_feature_huge_file(&fs_param);
2077 ext2fs_clear_feature_metadata_csum(&fs_param);
2078 ext2fs_clear_feature_ea_inode(&fs_param);
2079 ext2fs_clear_feature_casefold(&fs_param);
2081 edit_feature(fs_features ? fs_features : tmp,
2082 &fs_param.s_feature_compat);
2085 (void) ext2fs_free_mem(&fs_features);
2087 * If the user specified features incompatible with the Hurd, complain
2089 if (for_hurd(creator_os)) {
2090 if (ext2fs_has_feature_filetype(&fs_param)) {
2091 fprintf(stderr, "%s", _("The HURD does not support the "
2092 "filetype feature.\n"));
2095 if (ext2fs_has_feature_huge_file(&fs_param)) {
2096 fprintf(stderr, "%s", _("The HURD does not support the "
2097 "huge_file feature.\n"));
2100 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2101 fprintf(stderr, "%s", _("The HURD does not support the "
2102 "metadata_csum feature.\n"));
2105 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2106 fprintf(stderr, "%s", _("The HURD does not support the "
2107 "ea_inode feature.\n"));
2112 /* Get the hardware sector sizes, if available */
2113 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2115 com_err(program_name, retval, "%s",
2116 _("while trying to determine hardware sector size"));
2119 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2121 com_err(program_name, retval, "%s",
2122 _("while trying to determine physical sector size"));
2126 tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2128 lsector_size = atoi(tmp);
2129 tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2131 psector_size = atoi(tmp);
2133 /* Older kernels may not have physical/logical distinction */
2135 psector_size = lsector_size;
2137 if (blocksize <= 0) {
2138 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2140 if (use_bsize == -1) {
2141 use_bsize = sys_page_size;
2142 if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2145 if (lsector_size && use_bsize < lsector_size)
2146 use_bsize = lsector_size;
2147 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2148 use_bsize = -blocksize;
2149 blocksize = use_bsize;
2150 fs_blocks_count /= (blocksize / 1024);
2152 if (blocksize < lsector_size) { /* Impossible */
2153 com_err(program_name, EINVAL, "%s",
2154 _("while setting blocksize; too small "
2157 } else if ((blocksize < psector_size) &&
2158 (psector_size <= sys_page_size)) { /* Suboptimal */
2159 fprintf(stderr, _("Warning: specified blocksize %d is "
2160 "less than device physical sectorsize %d\n"),
2161 blocksize, psector_size);
2165 fs_param.s_log_block_size =
2166 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2169 * We now need to do a sanity check of fs_blocks_count for
2170 * 32-bit vs 64-bit block number support.
2172 if ((fs_blocks_count > MAX_32_NUM) &&
2173 ext2fs_has_feature_64bit(&fs_param))
2174 ext2fs_clear_feature_resize_inode(&fs_param);
2175 if ((fs_blocks_count > MAX_32_NUM) &&
2176 !ext2fs_has_feature_64bit(&fs_param) &&
2177 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2178 ext2fs_set_feature_64bit(&fs_param);
2179 ext2fs_clear_feature_resize_inode(&fs_param);
2181 if ((fs_blocks_count > MAX_32_NUM) &&
2182 !ext2fs_has_feature_64bit(&fs_param)) {
2183 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2184 "too big to be expressed\n\t"
2185 "in 32 bits using a blocksize of %d.\n"),
2186 program_name, (unsigned long long) fs_blocks_count,
2187 device_name, EXT2_BLOCK_SIZE(&fs_param));
2191 * Guard against group descriptor count overflowing... Mostly to avoid
2192 * strange results for absurdly large devices. This is in log2:
2193 * (blocksize) * (bits per byte) * (maximum number of block groups)
2195 if (fs_blocks_count >
2196 (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2197 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2198 "too big to create\n\t"
2199 "a filesystem using a blocksize of %d.\n"),
2200 program_name, (unsigned long long) fs_blocks_count,
2201 device_name, EXT2_BLOCK_SIZE(&fs_param));
2205 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2207 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2210 for (i=0; fs_types[i]; i++) {
2214 fs_types[0] = strdup("journal");
2219 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2220 print_str_list(fs_types);
2223 if (r_opt == EXT2_GOOD_OLD_REV &&
2224 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2225 fs_param.s_feature_ro_compat)) {
2226 fprintf(stderr, "%s", _("Filesystem features not supported "
2227 "with revision 0 filesystems\n"));
2232 if (r_opt == EXT2_GOOD_OLD_REV) {
2233 fprintf(stderr, "%s",
2234 _("Sparse superblocks not supported "
2235 "with revision 0 filesystems\n"));
2238 ext2fs_set_feature_sparse_super(&fs_param);
2239 } else if (s_opt == 0)
2240 ext2fs_clear_feature_sparse_super(&fs_param);
2242 if (journal_size != 0) {
2243 if (r_opt == EXT2_GOOD_OLD_REV) {
2244 fprintf(stderr, "%s", _("Journals not supported with "
2245 "revision 0 filesystems\n"));
2248 ext2fs_set_feature_journal(&fs_param);
2251 /* Get reserved_ratio from profile if not specified on cmd line. */
2252 if (reserved_ratio < 0.0) {
2253 reserved_ratio = get_double_from_profile(
2254 fs_types, "reserved_ratio", 5.0);
2255 if (reserved_ratio > 50 || reserved_ratio < 0) {
2256 com_err(program_name, 0,
2257 _("invalid reserved blocks percent - %lf"),
2263 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2265 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2266 fs_param.s_feature_compat = 0;
2267 fs_param.s_feature_ro_compat &=
2268 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2271 /* Check the user's mkfs options for 64bit */
2272 if (ext2fs_has_feature_64bit(&fs_param) &&
2273 !ext2fs_has_feature_extents(&fs_param)) {
2274 printf("%s", _("Extents MUST be enabled for a 64-bit "
2275 "filesystem. Pass -O extents to rectify.\n"));
2279 /* Set first meta blockgroup via an environment variable */
2280 /* (this is mostly for debugging purposes) */
2281 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2282 (tmp = getenv("MKE2FS_FIRST_META_BG")))
2283 fs_param.s_first_meta_bg = atoi(tmp);
2284 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2286 cluster_size = get_int_from_profile(fs_types,
2289 fs_param.s_log_cluster_size =
2290 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2291 if (fs_param.s_log_cluster_size &&
2292 fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2293 com_err(program_name, 0, "%s",
2294 _("The cluster size may not be "
2295 "smaller than the block size.\n"));
2298 } else if (cluster_size) {
2299 com_err(program_name, 0, "%s",
2300 _("specifying a cluster size requires the "
2301 "bigalloc feature"));
2304 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2306 if (inode_ratio == 0) {
2307 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2309 if (inode_ratio < blocksize)
2310 inode_ratio = blocksize;
2311 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2312 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2315 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2316 retval = get_device_geometry(device_name, blocksize,
2317 psector_size, &dev_param);
2320 _("warning: Unable to get device geometry for %s\n"),
2323 /* setting stripe/stride to blocksize is pointless */
2324 if (dev_param.min_io > blocksize)
2325 fs_param.s_raid_stride = dev_param.min_io / blocksize;
2326 if (dev_param.opt_io > blocksize) {
2327 fs_param.s_raid_stripe_width =
2328 dev_param.opt_io / blocksize;
2331 if (dev_param.alignment_offset) {
2332 printf(_("%s alignment is offset by %lu bytes.\n"),
2333 device_name, dev_param.alignment_offset);
2334 printf(_("This may result in very poor performance, "
2335 "(re)-partitioning suggested.\n"));
2338 if (dev_param.dax && blocksize != sys_page_size) {
2340 _("%s is capable of DAX but current block size "
2341 "%u is different from system page size %u so "
2342 "filesystem will not support DAX.\n"),
2343 device_name, blocksize, sys_page_size);
2348 num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2350 blocksize = EXT2_BLOCK_SIZE(&fs_param);
2353 * Initialize s_desc_size so that the parse_extended_opts()
2354 * can correctly handle "-E resize=NNN" if the 64-bit option
2357 if (ext2fs_has_feature_64bit(&fs_param))
2358 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2360 /* This check should happen beyond the last assignment to blocksize */
2361 if (blocksize > sys_page_size) {
2363 com_err(program_name, 0,
2364 _("%d-byte blocks too big for system (max %d)"),
2365 blocksize, sys_page_size);
2366 proceed_question(proceed_delay);
2368 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2369 "(max %d), forced to continue\n"),
2370 blocksize, sys_page_size);
2373 /* Metadata checksumming wasn't totally stable before 3.18. */
2374 if (is_before_linux_ver(3, 18, 0) &&
2375 ext2fs_has_feature_metadata_csum(&fs_param))
2376 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2377 "improved stability of the metadata and journal "
2378 "checksum features.\n"));
2381 * On newer kernels we do have lazy_itable_init support. So pick the
2382 * right default in case ext4 module is not loaded.
2384 if (is_before_linux_ver(2, 6, 37))
2385 lazy_itable_init = 0;
2387 lazy_itable_init = 1;
2389 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2390 lazy_itable_init = 1;
2392 lazy_itable_init = get_bool_from_profile(fs_types,
2395 discard = get_bool_from_profile(fs_types, "discard" , discard);
2396 journal_flags |= get_bool_from_profile(fs_types,
2397 "lazy_journal_init", 0) ?
2398 EXT2_MKJOURNAL_LAZYINIT : 0;
2399 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2401 if (!journal_location_string)
2402 journal_location_string = get_string_from_profile(fs_types,
2403 "journal_location", "");
2404 if ((journal_location == ~0ULL) && journal_location_string &&
2405 *journal_location_string)
2406 journal_location = parse_num_blocks2(journal_location_string,
2407 fs_param.s_log_block_size);
2408 free(journal_location_string);
2410 packed_meta_blocks = get_bool_from_profile(fs_types,
2411 "packed_meta_blocks", 0);
2412 if (packed_meta_blocks)
2413 journal_location = 0;
2415 if (ext2fs_has_feature_casefold(&fs_param)) {
2416 char *ef, *en = get_string_from_profile(fs_types,
2417 "encoding", "utf8");
2418 int encoding = e2p_str2encoding(en);
2421 com_err(program_name, 0,
2422 _("Unknown filename encoding from profile: %s"),
2427 fs_param.s_encoding = encoding;
2428 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2430 if (e2p_str2encoding_flags(encoding, ef,
2431 &fs_param.s_encoding_flags) < 0) {
2432 com_err(program_name, 0,
2433 _("Unknown encoding flags from profile: %s"), ef);
2438 fs_param.s_encoding_flags =
2439 e2p_get_encoding_flags(encoding);
2442 /* Get options from profile */
2443 for (cpp = fs_types; *cpp; cpp++) {
2445 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2447 parse_extended_opts(&fs_param, tmp);
2452 parse_extended_opts(&fs_param, extended_opts);
2454 if (explicit_fssize == 0 && offset > 0) {
2455 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2456 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2458 _("\nWarning: offset specified without an "
2459 "explicit file system size.\n"
2460 "Creating a file system with %llu blocks "
2462 "not be what you want.\n\n"),
2463 (unsigned long long) fs_blocks_count);
2466 if (quotatype_bits & QUOTA_PRJ_BIT)
2467 ext2fs_set_feature_project(&fs_param);
2469 if (ext2fs_has_feature_project(&fs_param)) {
2470 quotatype_bits |= QUOTA_PRJ_BIT;
2471 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2472 com_err(program_name, 0,
2473 _("%d byte inodes are too small for "
2478 if (inode_size == 0) {
2479 inode_size = get_int_from_profile(fs_types,
2481 if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2482 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2486 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2487 if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2488 ext2fs_has_feature_gdt_csum(&fs_param))
2489 ext2fs_clear_feature_gdt_csum(&fs_param);
2491 /* Can't support bigalloc feature without extents feature */
2492 if (ext2fs_has_feature_bigalloc(&fs_param) &&
2493 !ext2fs_has_feature_extents(&fs_param)) {
2494 com_err(program_name, 0, "%s",
2495 _("Can't support bigalloc feature without "
2496 "extents feature"));
2500 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2501 ext2fs_has_feature_resize_inode(&fs_param)) {
2502 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2503 "features are not compatible.\n"
2504 "They can not be both enabled "
2505 "simultaneously.\n"));
2509 if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2510 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2511 "still under development\n"
2512 "See https://ext4.wiki.kernel.org/"
2513 "index.php/Bigalloc for more information\n\n"));
2516 * Since sparse_super is the default, we would only have a problem
2517 * here if it was explicitly disabled.
2519 if (ext2fs_has_feature_resize_inode(&fs_param) &&
2520 !ext2fs_has_feature_sparse_super(&fs_param)) {
2521 com_err(program_name, 0, "%s",
2522 _("reserved online resize blocks not supported "
2523 "on non-sparse filesystem"));
2527 if (fs_param.s_blocks_per_group) {
2528 if (fs_param.s_blocks_per_group < 256 ||
2529 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2530 com_err(program_name, 0, "%s",
2531 _("blocks per group count out of range"));
2537 * If the bigalloc feature is enabled, then the -g option will
2538 * specify the number of clusters per group.
2540 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2541 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2542 fs_param.s_blocks_per_group = 0;
2545 if (inode_size == 0)
2546 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2547 if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2548 flex_bg_size = get_uint_from_profile(fs_types,
2549 "flex_bg_size", 16);
2551 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2552 com_err(program_name, 0, "%s",
2553 _("Flex_bg feature not enabled, so "
2554 "flex_bg size may not be specified"));
2557 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2560 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2561 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2562 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2563 inode_size & (inode_size - 1)) {
2564 com_err(program_name, 0,
2565 _("invalid inode size %d (min %d/max %d)"),
2566 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2570 fs_param.s_inode_size = inode_size;
2574 * If inode size is 128 and inline data is enabled, we need
2575 * to notify users that inline data will never be useful.
2577 if (ext2fs_has_feature_inline_data(&fs_param) &&
2578 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2579 com_err(program_name, 0,
2580 _("%d byte inodes are too small for inline data; "
2581 "specify larger size"),
2582 fs_param.s_inode_size);
2586 /* Make sure number of inodes specified will fit in 32 bits */
2587 if (num_inodes == 0) {
2588 unsigned long long n;
2589 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2590 if (n > MAX_32_NUM) {
2591 if (ext2fs_has_feature_64bit(&fs_param))
2592 num_inodes = MAX_32_NUM;
2594 com_err(program_name, 0,
2595 _("too many inodes (%llu), raise "
2597 (unsigned long long) n);
2601 } else if (num_inodes > MAX_32_NUM) {
2602 com_err(program_name, 0,
2603 _("too many inodes (%llu), specify < 2^32 inodes"),
2604 (unsigned long long) num_inodes);
2608 * Calculate number of inodes based on the inode ratio
2610 fs_param.s_inodes_count = num_inodes ? num_inodes :
2611 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2613 if ((((unsigned long long)fs_param.s_inodes_count) *
2614 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2615 ((ext2fs_blocks_count(&fs_param)) *
2616 EXT2_BLOCK_SIZE(&fs_param))) {
2617 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2618 "(%u) too big for a\n\t"
2619 "filesystem with %llu blocks, "
2620 "specify higher inode_ratio (-i)\n\t"
2621 "or lower inode count (-N).\n"),
2622 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2623 fs_param.s_inodes_count,
2624 (unsigned long long) ext2fs_blocks_count(&fs_param));
2629 * Calculate number of blocks to reserve
2631 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2632 ext2fs_blocks_count(&fs_param) / 100.0);
2634 if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2635 if (num_backups >= 1)
2636 fs_param.s_backup_bgs[0] = 1;
2637 if (num_backups >= 2)
2638 fs_param.s_backup_bgs[1] = ~0;
2644 /* The isatty() test is so we don't break existing scripts */
2645 flags = CREATE_FILE;
2646 if (isatty(0) && isatty(1) && !offset)
2647 flags |= CHECK_FS_EXIST;
2649 flags |= VERBOSE_CREATE;
2650 if (!explicit_fssize)
2652 if (!check_plausibility(device_name, flags, &is_device) && !force)
2653 proceed_question(proceed_delay);
2656 static int should_do_undo(const char *name)
2661 struct ext2_super_block super;
2662 io_manager manager = unix_io_manager;
2663 int csum_flag, force_undo;
2665 csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2666 ext2fs_has_feature_gdt_csum(&fs_param);
2667 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2668 if (!force_undo && (!csum_flag || !lazy_itable_init))
2671 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
2674 * We don't handle error cases instead we
2675 * declare that the file system doesn't exist
2676 * and let the rest of mke2fs take care of
2683 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2684 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2690 #if defined(WORDS_BIGENDIAN)
2691 s_magic = ext2fs_swab16(super.s_magic);
2693 s_magic = super.s_magic;
2696 if (s_magic == EXT2_SUPER_MAGIC)
2700 io_channel_close(channel);
2707 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2709 errcode_t retval = ENOMEM;
2710 char *tdb_dir = NULL, *tdb_file = NULL;
2711 char *dev_name, *tmp_name;
2712 int free_tdb_dir = 0;
2714 /* (re)open a specific undo file */
2715 if (undo_file && undo_file[0] != 0) {
2716 retval = set_undo_io_backing_manager(*io_ptr);
2719 *io_ptr = undo_io_manager;
2720 retval = set_undo_io_backup_file(undo_file);
2723 printf(_("Overwriting existing filesystem; this can be undone "
2724 "using the command:\n"
2725 " e2undo %s %s\n\n"), undo_file, name);
2730 * Configuration via a conf file would be
2733 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2735 profile_get_string(profile, "defaults",
2736 "undo_dir", 0, "/var/lib/e2fsprogs",
2741 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2742 access(tdb_dir, W_OK)) {
2748 tmp_name = strdup(name);
2751 dev_name = basename(tmp_name);
2752 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2757 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2760 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2762 com_err(program_name, retval,
2763 _("while trying to delete %s"), tdb_file);
2767 retval = set_undo_io_backing_manager(*io_ptr);
2770 *io_ptr = undo_io_manager;
2771 retval = set_undo_io_backup_file(tdb_file);
2774 printf(_("Overwriting existing filesystem; this can be undone "
2775 "using the command:\n"
2776 " e2undo %s %s\n\n"), tdb_file, name);
2788 com_err(program_name, retval, "%s",
2789 _("while trying to setup undo file\n"));
2793 static int mke2fs_discard_device(ext2_filsys fs)
2795 struct ext2fs_numeric_progress_struct progress;
2796 blk64_t blocks = ext2fs_blocks_count(fs->super);
2797 blk64_t count = DISCARD_STEP_MB;
2802 * Let's try if discard really works on the device, so
2803 * we do not print numeric progress resulting in failure
2806 retval = io_channel_discard(fs->io, 0, 1);
2810 count *= (1024 * 1024);
2811 count /= fs->blocksize;
2813 ext2fs_numeric_progress_init(fs, &progress,
2814 _("Discarding device blocks: "),
2816 while (cur < blocks) {
2817 ext2fs_numeric_progress_update(fs, &progress, cur);
2819 if (cur + count > blocks)
2820 count = blocks - cur;
2822 retval = io_channel_discard(fs->io, cur, count);
2829 ext2fs_numeric_progress_close(fs, &progress,
2832 printf("%s\n",error_message(retval));
2834 ext2fs_numeric_progress_close(fs, &progress,
2840 static void fix_cluster_bg_counts(ext2_filsys fs)
2842 blk64_t block, num_blocks, last_block, next;
2843 blk64_t tot_free = 0;
2848 num_blocks = ext2fs_blocks_count(fs->super);
2849 last_block = ext2fs_group_last_block2(fs, group);
2850 block = fs->super->s_first_data_block;
2851 while (block < num_blocks) {
2852 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2853 block, last_block, &next);
2857 block = last_block + 1;
2861 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2862 block, last_block, &next);
2864 next = last_block + 1;
2865 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2866 tot_free += next - block;
2869 if (block > last_block) {
2871 ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2872 ext2fs_group_desc_csum_set(fs, group);
2875 last_block = ext2fs_group_last_block2(fs, group);
2878 ext2fs_free_blocks_count_set(fs->super, tot_free);
2881 static int create_quota_inodes(ext2_filsys fs)
2886 retval = quota_init_context(&qctx, fs, quotatype_bits);
2888 com_err(program_name, retval,
2889 _("while initializing quota context"));
2892 quota_compute_usage(qctx);
2893 retval = quota_write_inode(qctx, quotatype_bits);
2895 com_err(program_name, retval,
2896 _("while writing quota inodes"));
2899 quota_release_context(&qctx);
2904 static errcode_t set_error_behavior(ext2_filsys fs)
2907 short errors = fs->super->s_errors;
2909 arg = get_string_from_profile(fs_types, "errors", NULL);
2913 if (strcmp(arg, "continue") == 0)
2914 errors = EXT2_ERRORS_CONTINUE;
2915 else if (strcmp(arg, "remount-ro") == 0)
2916 errors = EXT2_ERRORS_RO;
2917 else if (strcmp(arg, "panic") == 0)
2918 errors = EXT2_ERRORS_PANIC;
2920 com_err(program_name, 0,
2921 _("bad error behavior in profile - %s"),
2924 return EXT2_ET_INVALID_ARGUMENT;
2929 if (errors_behavior)
2930 errors = errors_behavior;
2932 fs->super->s_errors = errors;
2936 int main (int argc, char *argv[])
2938 errcode_t retval = 0;
2940 badblocks_list bb_list = 0;
2941 badblocks_iterate bb_iter;
2943 struct ext2fs_journal_params jparams = {0};
2944 unsigned int i, checkinterval;
2950 char opt_string[40];
2952 int itable_zeroed = 0;
2956 setlocale(LC_MESSAGES, "");
2957 setlocale(LC_CTYPE, "");
2958 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2959 textdomain(NLS_CAT_NAME);
2960 set_com_err_gettext(gettext);
2964 #ifdef CONFIG_TESTIO_DEBUG
2965 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2966 io_ptr = test_io_manager;
2967 test_io_backing_manager = unix_io_manager;
2970 io_ptr = unix_io_manager;
2972 if (undo_file != NULL || should_do_undo(device_name)) {
2973 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2979 * Initialize the superblock....
2981 flags = EXT2_FLAG_EXCLUSIVE;
2983 flags |= EXT2_FLAG_DIRECT_IO;
2984 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2987 flags |= EXT2_FLAG_64BITS;
2989 * By default, we print how many inode tables or block groups
2990 * or whatever we've written so far. The quiet flag disables
2991 * this, along with a lot of other output.
2994 flags |= EXT2_FLAG_PRINT_PROGRESS;
2995 if (android_sparse_file) {
2996 char *android_sparse_params = malloc(strlen(device_name) + 48);
2998 if (!android_sparse_params) {
2999 com_err(program_name, ENOMEM, "%s",
3000 _("in malloc for android_sparse_params"));
3003 sprintf(android_sparse_params, "(%s):%u:%u",
3004 device_name, fs_param.s_blocks_count,
3005 1024 << fs_param.s_log_block_size);
3006 retval = ext2fs_initialize(android_sparse_params, flags,
3007 &fs_param, sparse_io_manager, &fs);
3008 free(android_sparse_params);
3010 retval = ext2fs_initialize(device_name, flags, &fs_param,
3013 com_err(device_name, retval, "%s",
3014 _("while setting up superblock"));
3017 fs->progress_ops = &ext2fs_numeric_progress_ops;
3019 /* Set the error behavior */
3020 retval = set_error_behavior(fs);
3024 /* Check the user's mkfs options for metadata checksumming */
3026 !ext2fs_has_feature_journal_dev(fs->super) &&
3027 ext2fs_has_feature_metadata_csum(fs->super)) {
3028 if (!ext2fs_has_feature_extents(fs->super))
3030 _("Extents are not enabled. The file extent "
3031 "tree can be checksummed, whereas block maps "
3032 "cannot. Not enabling extents reduces the "
3033 "coverage of metadata checksumming. "
3034 "Pass -O extents to rectify.\n"));
3035 if (!ext2fs_has_feature_64bit(fs->super))
3037 _("64-bit filesystem support is not enabled. "
3038 "The larger fields afforded by this feature "
3039 "enable full-strength checksumming. "
3040 "Pass -O 64bit to rectify.\n"));
3043 if (ext2fs_has_feature_csum_seed(fs->super) &&
3044 !ext2fs_has_feature_metadata_csum(fs->super)) {
3045 printf("%s", _("The metadata_csum_seed feature "
3046 "requires the metadata_csum feature.\n"));
3050 /* Calculate journal blocks */
3051 if (!journal_device && ((journal_size) ||
3052 ext2fs_has_feature_journal(&fs_param)))
3053 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3055 sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3056 32768 : fs->blocksize * 8);
3057 io_channel_set_options(fs->io, opt_string);
3059 sprintf(opt_string, "offset=%llu", (unsigned long long) offset);
3060 io_channel_set_options(fs->io, opt_string);
3063 /* Can't undo discard ... */
3064 if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3065 retval = mke2fs_discard_device(fs);
3066 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3069 _("Discard succeeded and will return "
3070 "0s - skipping inode table wipe\n"));
3071 lazy_itable_init = 1;
3077 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3078 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3080 if (ext2fs_has_feature_flex_bg(&fs_param) ||
3081 ext2fs_has_feature_huge_file(&fs_param) ||
3082 ext2fs_has_feature_gdt_csum(&fs_param) ||
3083 ext2fs_has_feature_dir_nlink(&fs_param) ||
3084 ext2fs_has_feature_metadata_csum(&fs_param) ||
3085 ext2fs_has_feature_extra_isize(&fs_param))
3086 fs->super->s_kbytes_written = 1;
3089 * Wipe out the old on-disk superblock
3092 zap_sector(fs, 2, 6);
3095 * Parse or generate a UUID for the filesystem
3098 if ((strcasecmp(fs_uuid, "null") == 0) ||
3099 (strcasecmp(fs_uuid, "clear") == 0)) {
3100 uuid_clear(fs->super->s_uuid);
3101 } else if (strcasecmp(fs_uuid, "time") == 0) {
3102 uuid_generate_time(fs->super->s_uuid);
3103 } else if (strcasecmp(fs_uuid, "random") == 0) {
3104 uuid_generate(fs->super->s_uuid);
3105 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3106 com_err(device_name, 0, "could not parse UUID: %s\n",
3111 uuid_generate(fs->super->s_uuid);
3113 if (ext2fs_has_feature_csum_seed(fs->super))
3114 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3115 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3117 ext2fs_init_csum_seed(fs);
3120 * Initialize the directory index variables
3122 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3124 hash_alg = e2p_string2hash(hash_alg_str);
3126 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3129 if (memcmp(fs_param.s_hash_seed, zero_buf,
3130 sizeof(fs_param.s_hash_seed)) != 0) {
3131 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3132 sizeof(fs->super->s_hash_seed));
3134 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3137 * Periodic checks can be enabled/disabled via config file.
3138 * Note we override the kernel include file's idea of what the default
3139 * check interval (never) should be. It's a good idea to check at
3140 * least *occasionally*, specially since servers will never rarely get
3141 * to reboot, since Linux is so robust these days. :-)
3143 * 180 days (six months) seems like a good value.
3145 #ifdef EXT2_DFL_CHECKINTERVAL
3146 #undef EXT2_DFL_CHECKINTERVAL
3148 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3150 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3151 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3152 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3154 * Add "jitter" to the superblock's check interval so that we
3155 * don't check all the filesystems at the same time. We use a
3156 * kludgy hack of using the UUID to derive a random jitter value
3158 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3159 val += fs->super->s_uuid[i];
3160 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3162 fs->super->s_max_mnt_count = -1;
3165 * Override the creator OS, if applicable
3167 if (creator_os && !set_os(fs->super, creator_os)) {
3168 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3173 * For the Hurd, we will turn off filetype since it doesn't
3176 if (fs->super->s_creator_os == EXT2_OS_HURD)
3177 ext2fs_clear_feature_filetype(fs->super);
3180 * Set the volume label...
3183 memset(fs->super->s_volume_name, 0,
3184 sizeof(fs->super->s_volume_name));
3185 strncpy((char *) fs->super->s_volume_name, volume_label,
3186 sizeof(fs->super->s_volume_name));
3190 * Set the last mount directory
3193 memset(fs->super->s_last_mounted, 0,
3194 sizeof(fs->super->s_last_mounted));
3195 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3196 sizeof(fs->super->s_last_mounted));
3199 /* Set current default encryption algorithms for data and
3200 * filename encryption */
3201 if (ext2fs_has_feature_encrypt(fs->super)) {
3202 fs->super->s_encrypt_algos[0] =
3203 EXT4_ENCRYPTION_MODE_AES_256_XTS;
3204 fs->super->s_encrypt_algos[1] =
3205 EXT4_ENCRYPTION_MODE_AES_256_CTS;
3208 if (ext2fs_has_feature_metadata_csum(fs->super))
3209 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3211 if (!quiet || noaction)
3217 if (ext2fs_has_feature_journal_dev(fs->super)) {
3218 create_journal_dev(fs);
3220 exit(ext2fs_close_free(&fs) ? 1 : 0);
3223 if (bad_blocks_filename)
3224 read_bb_file(fs, &bb_list, bad_blocks_filename);
3226 test_disk(fs, &bb_list);
3227 handle_bad_blocks(fs, bb_list);
3229 fs->stride = fs_stride = fs->super->s_raid_stride;
3231 printf("%s", _("Allocating group tables: "));
3232 if (ext2fs_has_feature_flex_bg(fs->super) &&
3234 retval = packed_allocate_tables(fs);
3236 retval = ext2fs_allocate_tables(fs);
3238 com_err(program_name, retval, "%s",
3239 _("while trying to allocate filesystem tables"));
3243 printf("%s", _("done \n"));
3246 * Unmark bad blocks to calculate overhead, because metadata
3247 * blocks and bad blocks can land on the same allocation cluster.
3250 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3253 com_err("ext2fs_badblocks_list_iterate_begin", retval,
3254 "%s", _("while unmarking bad blocks"));
3257 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3258 ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3259 ext2fs_badblocks_list_iterate_end(bb_iter);
3262 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3264 com_err(program_name, retval, "%s",
3265 _("\n\twhile converting subcluster bitmap"));
3269 retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3270 ext2fs_blocks_count(fs->super) - 1,
3273 com_err(program_name, retval, "%s",
3274 _("while calculating overhead"));
3279 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3282 com_err("ext2fs_badblocks_list_iterate_begin", retval,
3283 "%s", _("while marking bad blocks as used"));
3286 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3287 ext2fs_mark_block_bitmap2(fs->block_map, blk);
3288 ext2fs_badblocks_list_iterate_end(bb_iter);
3292 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3293 printf(_("%s may be further corrupted by superblock rewrite\n"),
3296 proceed_question(proceed_delay);
3297 fs->super->s_state |= EXT2_ERROR_FS;
3298 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3300 * The command "mke2fs -S" is used to recover
3301 * corrupted file systems, so do not mark any of the
3302 * inodes as unused; we want e2fsck to consider all
3303 * inodes as potentially containing recoverable data.
3305 if (ext2fs_has_group_desc_csum(fs)) {
3306 for (i = 0; i < fs->group_desc_count; i++)
3307 ext2fs_bg_itable_unused_set(fs, i, 0);
3310 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3311 blk64_t rsv = 65536 / fs->blocksize;
3312 blk64_t blocks = ext2fs_blocks_count(fs->super);
3316 #ifdef ZAP_BOOTBLOCK
3317 zap_sector(fs, 0, 2);
3321 * Wipe out any old MD RAID (or other) metadata at the end
3322 * of the device. This will also verify that the device is
3323 * as large as we think. Be careful with very small devices.
3325 start = (blocks & ~(rsv - 1));
3329 retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3333 com_err(program_name, retval,
3334 _("while zeroing block %llu at end of filesystem"),
3335 (unsigned long long) ret_blk);
3337 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3338 create_root_dir(fs);
3339 create_lost_and_found(fs);
3341 create_bad_block_inode(fs, bb_list);
3342 if (ext2fs_has_feature_resize_inode(fs->super)) {
3343 retval = ext2fs_create_resize_inode(fs);
3345 com_err("ext2fs_create_resize_inode", retval,
3347 _("while reserving blocks for online resize"));
3353 if (journal_device) {
3356 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3358 proceed_question(proceed_delay);
3359 check_mount(journal_device, force, _("journal"));
3361 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3362 EXT2_FLAG_JOURNAL_DEV_OK, 0,
3363 fs->blocksize, unix_io_manager, &jfs);
3365 com_err(program_name, retval,
3366 _("while trying to open journal device %s\n"),
3371 printf(_("Adding journal to device %s: "),
3375 retval = ext2fs_add_journal_device(fs, jfs);
3377 com_err (program_name, retval,
3378 _("\n\twhile trying to add journal to device %s"),
3383 printf("%s", _("done\n"));
3384 ext2fs_close_free(&jfs);
3385 free(journal_device);
3386 } else if ((journal_size) ||
3387 ext2fs_has_feature_journal(&fs_param)) {
3388 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3390 printf("%s", _("Skipping journal creation in super-only mode\n"));
3391 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3395 if (!jparams.num_journal_blocks) {
3396 ext2fs_clear_feature_journal(fs->super);
3400 printf(_("Creating journal (%u blocks): "),
3401 jparams.num_journal_blocks + jparams.num_fc_blocks);
3404 retval = ext2fs_add_journal_inode3(fs, &jparams,
3408 com_err(program_name, retval, "%s",
3409 _("\n\twhile trying to create journal"));
3413 printf("%s", _("done\n"));
3417 ext2fs_has_feature_mmp(fs->super)) {
3418 retval = ext2fs_mmp_init(fs);
3420 fprintf(stderr, "%s",
3421 _("\nError while enabling multiple "
3422 "mount protection feature."));
3426 printf(_("Multiple mount protection is enabled "
3427 "with update interval %d seconds.\n"),
3428 fs->super->s_mmp_update_interval);
3431 overhead += fs->super->s_first_data_block;
3433 fs->super->s_overhead_clusters = overhead;
3435 if (ext2fs_has_feature_bigalloc(&fs_param))
3436 fix_cluster_bg_counts(fs);
3437 if (ext2fs_has_feature_quota(&fs_param))
3438 create_quota_inodes(fs);
3440 retval = mk_hugefiles(fs, device_name);
3442 com_err(program_name, retval, "while creating huge files");
3443 /* Copy files from the specified directory */
3446 printf("%s", _("Copying files into the device: "));
3448 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3451 com_err(program_name, retval, "%s",
3452 _("while populating file system"));
3455 printf("%s", _("done\n"));
3459 printf("%s", _("Writing superblocks and "
3460 "filesystem accounting information: "));
3461 checkinterval = fs->super->s_checkinterval;
3462 max_mnt_count = fs->super->s_max_mnt_count;
3463 retval = ext2fs_close_free(&fs);
3465 com_err(program_name, retval, "%s",
3466 _("while writing out and closing file system"));
3468 } else if (!quiet) {
3469 printf("%s", _("done\n\n"));
3470 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3471 print_check_message(max_mnt_count, checkinterval);
3474 remove_error_table(&et_ext2_error_table);
3475 remove_error_table(&et_prof_error_table);
3476 profile_release(profile);
3477 for (i=0; fs_types[i]; i++)