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 " : "",
260 fs->device_name, ext2fs_blocks_count(fs->super)-1);
262 printf(_("Running command: %s\n"), buf);
265 com_err("popen", errno,
266 _("while trying to run '%s'"), buf);
269 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
272 com_err("ext2fs_read_bb_FILE", retval, "%s",
273 _("while processing list of bad blocks from program"));
278 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
282 unsigned must_be_good;
284 badblocks_iterate bb_iter;
294 * The primary superblock and group descriptors *must* be
295 * good; if not, abort.
297 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
298 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
299 if (ext2fs_badblocks_list_test(bb_list, i)) {
300 fprintf(stderr, _("Block %d in primary "
301 "superblock/group descriptor area bad.\n"), i);
302 fprintf(stderr, _("Blocks %u through %u must be good "
303 "in order to build a filesystem.\n"),
304 fs->super->s_first_data_block, must_be_good);
305 fputs(_("Aborting....\n"), stderr);
311 * See if any of the bad blocks are showing up in the backup
312 * superblocks and/or group descriptors. If so, issue a
313 * warning and adjust the block counts appropriately.
315 group_block = fs->super->s_first_data_block +
316 fs->super->s_blocks_per_group;
318 for (i = 1; i < fs->group_desc_count; i++) {
320 for (j=0; j < fs->desc_blocks+1; j++) {
321 if (ext2fs_badblocks_list_test(bb_list,
325 _("Warning: the backup superblock/group descriptors at block %u contain\n"
329 group = ext2fs_group_of_blk2(fs, group_block+j);
330 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
331 ext2fs_group_desc_csum_set(fs, group);
332 ext2fs_free_blocks_count_add(fs->super, 1);
335 group_block += fs->super->s_blocks_per_group;
339 * Mark all the bad blocks as used...
341 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
343 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
344 _("while marking bad blocks as used"));
347 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
348 ext2fs_mark_block_bitmap2(fs->block_map, blk);
349 ext2fs_badblocks_list_iterate_end(bb_iter);
352 static void write_reserved_inodes(ext2_filsys fs)
356 struct ext2_inode *inode;
358 retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
360 com_err("inode_init", retval, _("while allocating memory"));
364 for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
365 retval = ext2fs_write_inode_full(fs, ino, inode,
366 EXT2_INODE_SIZE(fs->super));
368 com_err("ext2fs_write_inode_full", retval,
369 _("while writing reserved inodes"));
374 ext2fs_free_mem(&inode);
377 static errcode_t packed_allocate_tables(ext2_filsys fs)
383 for (i = 0; i < fs->group_desc_count; i++) {
384 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
387 ext2fs_block_alloc_stats2(fs, goal, +1);
388 ext2fs_block_bitmap_loc_set(fs, i, goal);
390 for (i = 0; i < fs->group_desc_count; i++) {
391 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
394 ext2fs_block_alloc_stats2(fs, goal, +1);
395 ext2fs_inode_bitmap_loc_set(fs, i, goal);
397 for (i = 0; i < fs->group_desc_count; i++) {
398 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
399 retval = ext2fs_get_free_blocks2(fs, goal, end,
400 fs->inode_blocks_per_group,
401 fs->block_map, &goal);
404 ext2fs_block_alloc_stats_range(fs, goal,
405 fs->inode_blocks_per_group, +1);
406 ext2fs_inode_table_loc_set(fs, i, goal);
407 ext2fs_group_desc_csum_set(fs, i);
412 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
418 struct ext2fs_numeric_progress_struct progress;
420 ext2fs_numeric_progress_init(fs, &progress,
421 _("Writing inode tables: "),
422 fs->group_desc_count);
424 for (i = 0; i < fs->group_desc_count; i++) {
425 ext2fs_numeric_progress_update(fs, &progress, i);
427 blk = ext2fs_inode_table_loc(fs, i);
428 num = fs->inode_blocks_per_group;
431 num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
432 ext2fs_bg_itable_unused(fs, i)) *
433 EXT2_INODE_SIZE(fs->super),
434 EXT2_BLOCK_SIZE(fs->super));
435 if (!lazy_flag || itable_zeroed) {
436 /* The kernel doesn't need to zero the itable blocks */
437 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
438 ext2fs_group_desc_csum_set(fs, i);
440 if (!itable_zeroed) {
441 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
443 fprintf(stderr, _("\nCould not write %d "
444 "blocks in inode table starting at %llu: %s\n"),
445 num, blk, error_message(retval));
450 if (sync_kludge == 1)
451 io_channel_flush(fs->io);
452 else if ((i % sync_kludge) == 0)
453 io_channel_flush(fs->io);
456 ext2fs_numeric_progress_close(fs, &progress,
459 /* Reserved inodes must always have correct checksums */
460 if (ext2fs_has_feature_metadata_csum(fs->super))
461 write_reserved_inodes(fs);
464 static void create_root_dir(ext2_filsys fs)
467 struct ext2_inode inode;
469 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
471 com_err("ext2fs_mkdir", retval, "%s",
472 _("while creating root dir"));
475 if (root_uid != 0 || root_gid != 0) {
476 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
478 com_err("ext2fs_read_inode", retval, "%s",
479 _("while reading root inode"));
483 inode.i_uid = root_uid;
484 ext2fs_set_i_uid_high(inode, root_uid >> 16);
485 inode.i_gid = root_gid;
486 ext2fs_set_i_gid_high(inode, root_gid >> 16);
488 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
490 com_err("ext2fs_write_inode", retval, "%s",
491 _("while setting root inode ownership"));
497 static void create_lost_and_found(ext2_filsys fs)
499 unsigned int lpf_size = 0;
502 const char *name = "lost+found";
506 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
508 com_err("ext2fs_mkdir", retval, "%s",
509 _("while creating /lost+found"));
513 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
515 com_err("ext2_lookup", retval, "%s",
516 _("while looking up /lost+found"));
520 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
521 /* Ensure that lost+found is at least 2 blocks, so we always
522 * test large empty blocks for big-block filesystems. */
523 if ((lpf_size += fs->blocksize) >= 16*1024 &&
524 lpf_size >= 2 * fs->blocksize)
526 retval = ext2fs_expand_dir(fs, ino);
528 com_err("ext2fs_expand_dir", retval, "%s",
529 _("while expanding /lost+found"));
535 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
539 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
540 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
541 retval = ext2fs_update_bb_inode(fs, bb_list);
543 com_err("ext2fs_update_bb_inode", retval, "%s",
544 _("while setting bad block inode"));
550 static void reserve_inodes(ext2_filsys fs)
554 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
555 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
556 ext2fs_mark_ib_dirty(fs);
559 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
560 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
561 #define BSD_LABEL_OFFSET 64
563 static void zap_sector(ext2_filsys fs, int sect, int nsect)
569 buf = calloc(512, nsect);
571 printf(_("Out of memory erasing sectors %d-%d\n"),
572 sect, sect + nsect - 1);
577 /* Check for a BSD disklabel, and don't erase it if so */
578 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
581 _("Warning: could not read block 0: %s\n"),
582 error_message(retval));
584 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
585 if ((*magic == BSD_DISKMAGIC) ||
586 (*magic == BSD_MAGICDISK))
591 memset(buf, 0, 512*nsect);
592 io_channel_set_blksize(fs->io, 512);
593 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
594 io_channel_set_blksize(fs->io, fs->blocksize);
597 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
598 sect, error_message(retval));
601 static void create_journal_dev(ext2_filsys fs)
603 struct ext2fs_numeric_progress_struct progress;
606 blk64_t blk, err_blk;
607 int c, count, err_count;
608 struct ext2fs_journal_params jparams;
610 retval = ext2fs_get_journal_params(&jparams, fs);
612 com_err("create_journal_dev", retval, "%s",
613 _("while splitting the journal size"));
617 retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
619 com_err("create_journal_dev", retval, "%s",
620 _("while initializing journal superblock"));
624 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
625 goto write_superblock;
627 ext2fs_numeric_progress_init(fs, &progress,
628 _("Zeroing journal device: "),
629 ext2fs_blocks_count(fs->super));
631 count = ext2fs_blocks_count(fs->super);
637 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
639 com_err("create_journal_dev", retval,
640 _("while zeroing journal device "
641 "(block %llu, count %d)"),
647 ext2fs_numeric_progress_update(fs, &progress, blk);
650 ext2fs_numeric_progress_close(fs, &progress, NULL);
652 retval = io_channel_write_blk64(fs->io,
653 fs->super->s_first_data_block+1,
655 (void) ext2fs_free_mem(&buf);
657 com_err("create_journal_dev", retval, "%s",
658 _("while writing journal superblock"));
663 static void show_stats(ext2_filsys fs)
665 struct ext2_super_block *s = fs->super;
672 printf(_("Creating filesystem with %llu %dk blocks and "
674 ext2fs_blocks_count(s), fs->blocksize >> 10,
679 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
680 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
681 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
683 printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
685 os = e2p_os2string(fs->super->s_creator_os);
687 printf(_("OS type: %s\n"), os);
689 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
690 s->s_log_block_size);
691 if (ext2fs_has_feature_bigalloc(fs->super))
692 printf(_("Cluster size=%u (log=%u)\n"),
693 fs->blocksize << fs->cluster_ratio_bits,
694 s->s_log_cluster_size);
696 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
697 s->s_log_cluster_size);
698 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
699 s->s_raid_stride, s->s_raid_stripe_width);
700 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
701 ext2fs_blocks_count(s));
702 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
703 ext2fs_r_blocks_count(s),
704 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
705 printf(_("First data block=%u\n"), s->s_first_data_block);
706 if (root_uid != 0 || root_gid != 0)
707 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
708 if (s->s_reserved_gdt_blocks)
709 printf(_("Maximum filesystem blocks=%lu\n"),
710 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
711 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
712 if (fs->group_desc_count > 1)
713 printf(_("%u block groups\n"), fs->group_desc_count);
715 printf(_("%u block group\n"), fs->group_desc_count);
716 if (ext2fs_has_feature_bigalloc(fs->super))
717 printf(_("%u blocks per group, %u clusters per group\n"),
718 s->s_blocks_per_group, s->s_clusters_per_group);
720 printf(_("%u blocks per group, %u fragments per group\n"),
721 s->s_blocks_per_group, s->s_clusters_per_group);
722 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
725 if (fs->group_desc_count == 1) {
730 if (!e2p_is_null_uuid(s->s_uuid))
731 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
732 printf("%s", _("Superblock backups stored on blocks: "));
733 group_block = s->s_first_data_block;
735 for (i = 1; i < fs->group_desc_count; i++) {
736 group_block += s->s_blocks_per_group;
737 if (!ext2fs_bg_has_super(fs, i))
741 need = int_log10(group_block) + 2;
742 if (need > col_left) {
747 printf("%llu", group_block);
753 * Returns true if making a file system for the Hurd, else 0
755 static int for_hurd(const char *os)
765 return (atoi(os) == EXT2_OS_HURD);
766 return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
770 * Set the S_CREATOR_OS field. Return true if OS is known,
773 static int set_os(struct ext2_super_block *sb, char *os)
776 sb->s_creator_os = atoi (os);
777 else if (strcasecmp(os, "linux") == 0)
778 sb->s_creator_os = EXT2_OS_LINUX;
779 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
780 sb->s_creator_os = EXT2_OS_HURD;
781 else if (strcasecmp(os, "freebsd") == 0)
782 sb->s_creator_os = EXT2_OS_FREEBSD;
783 else if (strcasecmp(os, "lites") == 0)
784 sb->s_creator_os = EXT2_OS_LITES;
790 #define PATH_SET "PATH=/sbin"
792 static void parse_extended_opts(struct ext2_super_block *param,
795 char *buf, *token, *next, *p, *arg, *badopt = 0;
800 char *encoding_flags = NULL;
805 fprintf(stderr, "%s",
806 _("Couldn't allocate memory to parse options!\n"));
810 for (token = buf; token && *token; token = next) {
811 p = strchr(token, ',');
817 arg = strchr(token, '=');
822 if (strcmp(token, "desc-size") == 0 ||
823 strcmp(token, "desc_size") == 0) {
826 if (!ext2fs_has_feature_64bit(&fs_param)) {
828 _("%s requires '-O 64bit'\n"), token);
832 if (param->s_reserved_gdt_blocks != 0) {
834 _("'%s' must be before 'resize=%u'\n"),
835 token, param->s_reserved_gdt_blocks);
844 desc_size = strtoul(arg, &p, 0);
845 if (*p || (desc_size & (desc_size - 1))) {
847 _("Invalid desc_size: '%s'\n"), arg);
851 param->s_desc_size = desc_size;
852 } else if (strcmp(token, "hash_seed") == 0) {
859 (unsigned char *)param->s_hash_seed) != 0) {
861 _("Invalid hash seed: %s\n"), arg);
865 } else if (strcmp(token, "offset") == 0) {
871 offset = strtoull(arg, &p, 0);
873 fprintf(stderr, _("Invalid offset: %s\n"),
878 } else if (strcmp(token, "mmp_update_interval") == 0) {
884 param->s_mmp_update_interval = strtoul(arg, &p, 0);
887 _("Invalid mmp_update_interval: %s\n"),
892 } else if (strcmp(token, "no_copy_xattrs") == 0) {
895 } else if (strcmp(token, "num_backup_sb") == 0) {
901 num_backups = strtoul(arg, &p, 0);
902 if (*p || num_backups > 2) {
904 _("Invalid # of backup "
905 "superblocks: %s\n"),
910 } else if (strcmp(token, "packed_meta_blocks") == 0) {
912 packed_meta_blocks = strtoul(arg, &p, 0);
914 packed_meta_blocks = 1;
915 if (packed_meta_blocks)
916 journal_location = 0;
917 } else if (strcmp(token, "stride") == 0) {
923 param->s_raid_stride = strtoul(arg, &p, 0);
926 _("Invalid stride parameter: %s\n"),
931 } else if (strcmp(token, "stripe-width") == 0 ||
932 strcmp(token, "stripe_width") == 0) {
938 param->s_raid_stripe_width = strtoul(arg, &p, 0);
941 _("Invalid stripe-width parameter: %s\n"),
946 } else if (!strcmp(token, "resize")) {
948 unsigned long bpg, rsv_groups;
949 unsigned long group_desc_count, desc_blocks;
950 unsigned int gdpb, blocksize;
959 resize = parse_num_blocks2(arg,
960 param->s_log_block_size);
964 _("Invalid resize parameter: %s\n"),
969 if (resize <= ext2fs_blocks_count(param)) {
970 fprintf(stderr, "%s",
971 _("The resize maximum must be greater "
972 "than the filesystem size.\n"));
977 blocksize = EXT2_BLOCK_SIZE(param);
978 bpg = param->s_blocks_per_group;
981 gdpb = EXT2_DESC_PER_BLOCK(param);
982 group_desc_count = (__u32) ext2fs_div64_ceil(
983 ext2fs_blocks_count(param), bpg);
984 desc_blocks = (group_desc_count +
986 rsv_groups = ext2fs_div64_ceil(resize, bpg);
987 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
989 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
990 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
993 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
994 fprintf(stderr, "%s",
995 _("On-line resizing not supported with revision 0 filesystems\n"));
999 ext2fs_set_feature_resize_inode(param);
1001 param->s_reserved_gdt_blocks = rsv_gdb;
1003 } else if (!strcmp(token, "test_fs")) {
1004 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1005 } else if (!strcmp(token, "lazy_itable_init")) {
1007 lazy_itable_init = strtoul(arg, &p, 0);
1009 lazy_itable_init = 1;
1010 } else if (!strcmp(token, "lazy_journal_init")) {
1012 journal_flags |= strtoul(arg, &p, 0) ?
1013 EXT2_MKJOURNAL_LAZYINIT : 0;
1015 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1016 } else if (!strcmp(token, "root_owner")) {
1018 root_uid = strtoul(arg, &p, 0);
1021 _("Invalid root_owner: '%s'\n"),
1027 root_gid = strtoul(p, &p, 0);
1030 _("Invalid root_owner: '%s'\n"),
1036 root_uid = getuid();
1037 root_gid = getgid();
1039 } else if (!strcmp(token, "discard")) {
1041 } else if (!strcmp(token, "nodiscard")) {
1043 } else if (!strcmp(token, "quotatype")) {
1044 char *errtok = NULL;
1052 ret = parse_quota_types(arg, "atype_bits, &errtok);
1056 "Failed to parse quota type at %s", errtok);
1059 com_err(program_name, ret,
1060 "while parsing quota type");
1065 } else if (!strcmp(token, "android_sparse")) {
1066 android_sparse_file = 1;
1067 } else if (!strcmp(token, "encoding")) {
1073 encoding = e2p_str2encoding(arg);
1075 fprintf(stderr, _("Invalid encoding: %s"), arg);
1079 param->s_encoding = encoding;
1080 ext2fs_set_feature_casefold(param);
1081 } else if (!strcmp(token, "encoding_flags")) {
1086 encoding_flags = arg;
1093 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1094 "Extended options are separated by commas, "
1095 "and may take an argument which\n"
1096 "\tis set off by an equals ('=') sign.\n\n"
1097 "Valid extended options are:\n"
1098 "\tmmp_update_interval=<interval>\n"
1099 "\tnum_backup_sb=<0|1|2>\n"
1100 "\tstride=<RAID per-disk data chunk in blocks>\n"
1101 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1102 "\toffset=<offset to create the file system>\n"
1103 "\tresize=<resize maximum size in blocks>\n"
1104 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1105 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1106 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1107 "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1111 "\tencoding=<encoding>\n"
1112 "\tencoding_flags=<flags>\n"
1113 "\tquotatype=<quota type(s) to be enabled>\n\n"),
1114 badopt ? badopt : "");
1118 if (param->s_raid_stride &&
1119 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1120 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1121 "multiple of stride %u.\n\n"),
1122 param->s_raid_stripe_width, param->s_raid_stride);
1124 if (ext2fs_has_feature_casefold(param)) {
1125 param->s_encoding_flags =
1126 e2p_get_encoding_flags(param->s_encoding);
1128 if (encoding_flags &&
1129 e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1130 ¶m->s_encoding_flags)) {
1131 fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1136 } else if (encoding_flags) {
1137 fprintf(stderr, _("error: An encoding must be explicitly "
1138 "specified when passing encoding-flags\n"));
1146 static __u32 ok_features[3] = {
1148 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1149 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1150 EXT2_FEATURE_COMPAT_DIR_INDEX |
1151 EXT2_FEATURE_COMPAT_EXT_ATTR |
1152 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1153 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1154 EXT4_FEATURE_COMPAT_STABLE_INODES,
1156 EXT2_FEATURE_INCOMPAT_FILETYPE|
1157 EXT3_FEATURE_INCOMPAT_EXTENTS|
1158 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1159 EXT2_FEATURE_INCOMPAT_META_BG|
1160 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1161 EXT4_FEATURE_INCOMPAT_EA_INODE|
1162 EXT4_FEATURE_INCOMPAT_MMP |
1163 EXT4_FEATURE_INCOMPAT_64BIT|
1164 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1165 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1166 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1167 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1168 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1170 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1171 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1172 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1173 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1174 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1175 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1176 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1177 EXT4_FEATURE_RO_COMPAT_QUOTA|
1178 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1179 EXT4_FEATURE_RO_COMPAT_PROJECT|
1180 EXT4_FEATURE_RO_COMPAT_VERITY
1184 static void syntax_err_report(const char *filename, long err, int line_num)
1187 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1188 filename, line_num, error_message(err));
1192 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1194 static void edit_feature(const char *str, __u32 *compat_array)
1199 if (e2p_edit_feature(str, compat_array, ok_features)) {
1200 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1206 static void edit_mntopts(const char *str, __u32 *mntopts)
1211 if (e2p_edit_mntopts(str, mntopts, ~0)) {
1212 fprintf(stderr, _("Invalid mount option set: %s\n"),
1224 static errcode_t init_list(struct str_list *sl)
1228 sl->list = malloc((sl->max+1) * sizeof(char *));
1235 static errcode_t push_string(struct str_list *sl, const char *str)
1239 if (sl->num >= sl->max) {
1241 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1244 sl->list = new_list;
1246 sl->list[sl->num] = malloc(strlen(str)+1);
1247 if (sl->list[sl->num] == 0)
1249 strcpy(sl->list[sl->num], str);
1251 sl->list[sl->num] = 0;
1255 static void print_str_list(char **list)
1259 for (cpp = list; *cpp; cpp++) {
1260 printf("'%s'", *cpp);
1262 fputs(", ", stdout);
1264 fputc('\n', stdout);
1268 * Return TRUE if the profile has the given subsection
1270 static int profile_has_subsection(profile_t prof, const char *section,
1271 const char *subsection)
1274 const char *names[4];
1279 names[1] = subsection;
1282 if (profile_iterator_create(prof, names,
1283 PROFILE_ITER_LIST_SECTION |
1284 PROFILE_ITER_RELATIONS_ONLY, &state))
1287 if ((profile_iterator(&state, &name, 0) == 0) && name) {
1292 profile_iterator_free(&state);
1296 static char **parse_fs_type(const char *fs_type,
1297 const char *usage_types,
1298 struct ext2_super_block *sb,
1299 blk64_t fs_blocks_count,
1302 const char *ext_type = 0;
1304 char *profile_type = 0;
1306 const char *size_type;
1307 struct str_list list;
1308 unsigned long long meg;
1309 int is_hurd = for_hurd(creator_os);
1311 if (init_list(&list))
1318 else if (!strcmp(program_name, "mke3fs"))
1320 else if (!strcmp(program_name, "mke4fs"))
1322 else if (progname) {
1323 ext_type = strrchr(progname, '/');
1327 ext_type = progname;
1329 if (!strncmp(ext_type, "mkfs.", 5)) {
1331 if (ext_type[0] == 0)
1338 profile_get_string(profile, "defaults", "fs_type", 0,
1339 "ext2", &profile_type);
1340 ext_type = profile_type;
1341 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1346 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1347 strcmp(ext_type, "ext2")) {
1348 printf(_("\nYour mke2fs.conf file does not define the "
1349 "%s filesystem type.\n"), ext_type);
1350 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1351 !strcmp(ext_type, "ext4dev")) {
1352 printf("%s", _("You probably need to install an "
1353 "updated mke2fs.conf file.\n\n"));
1356 printf("%s", _("Aborting...\n"));
1361 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1362 if (fs_blocks_count < 3 * meg)
1363 size_type = "floppy";
1364 else if (fs_blocks_count < 512 * meg)
1365 size_type = "small";
1366 else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1367 size_type = "default";
1368 else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1374 usage_types = size_type;
1376 parse_str = malloc(strlen(usage_types)+1);
1382 strcpy(parse_str, usage_types);
1385 push_string(&list, ext_type);
1388 t = strchr(cp, ',');
1393 if (profile_has_subsection(profile, "fs_types", cp))
1394 push_string(&list, cp);
1395 else if (strcmp(cp, "default") != 0)
1397 _("\nWarning: the fs_type %s is not "
1398 "defined in mke2fs.conf\n\n"),
1409 push_string(&list, "hurd");
1413 char *get_string_from_profile(char **types, const char *opt,
1414 const char *def_val)
1419 for (i=0; types[i]; i++);
1420 for (i-=1; i >=0 ; i--) {
1421 profile_get_string(profile, "fs_types", types[i],
1426 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1430 int get_int_from_profile(char **types, const char *opt, int def_val)
1435 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1436 for (cpp = types; *cpp; cpp++)
1437 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1441 static unsigned int get_uint_from_profile(char **types, const char *opt,
1442 unsigned int def_val)
1447 profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1448 for (cpp = types; *cpp; cpp++)
1449 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1453 static double get_double_from_profile(char **types, const char *opt,
1459 profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1460 for (cpp = types; *cpp; cpp++)
1461 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1465 int get_bool_from_profile(char **types, const char *opt, int def_val)
1470 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1471 for (cpp = types; *cpp; cpp++)
1472 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1476 extern const char *mke2fs_default_profile;
1477 static const char *default_files[] = { "<default>", 0 };
1479 struct device_param {
1480 unsigned long min_io; /* prefered minimum IO size */
1481 unsigned long opt_io; /* optimal IO size */
1482 unsigned long alignment_offset; /* alignment offset wrt physical block size */
1483 unsigned int dax:1; /* supports dax? */
1486 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1488 * Sets the geometry of a device (stripe/stride), and returns the
1489 * device's alignment offset, if any, or a negative error.
1491 static int get_device_geometry(const char *file,
1492 unsigned int blocksize,
1493 unsigned int psector_size,
1494 struct device_param *dev_param)
1499 struct stat statbuf;
1501 memset(dev_param, 0, sizeof(*dev_param));
1503 /* Nothing to do for a regular file */
1504 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1507 pr = blkid_new_probe_from_filename(file);
1511 tp = blkid_probe_get_topology(pr);
1515 dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1516 dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1517 if ((dev_param->min_io == 0) && (psector_size > blocksize))
1518 dev_param->min_io = psector_size;
1519 if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1520 dev_param->opt_io = dev_param->min_io;
1521 if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1522 dev_param->opt_io = psector_size;
1524 dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1525 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1526 dev_param->dax = blkid_topology_get_dax(tp);
1530 blkid_free_probe(pr);
1535 static void PRS(int argc, char *argv[])
1538 int cluster_size = 0;
1540 int explicit_fssize = 0;
1542 int inode_ratio = 0;
1544 unsigned long flex_bg_size = 0;
1545 double reserved_ratio = -1.0;
1546 int lsector_size = 0, psector_size = 0;
1547 int show_version_only = 0, is_device = 0;
1548 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1550 char * oldpath = getenv("PATH");
1551 char * extended_opts = 0;
1553 char * usage_types = 0;
1555 * NOTE: A few words about fs_blocks_count and blocksize:
1557 * Initially, blocksize is set to zero, which implies 1024.
1558 * If -b is specified, blocksize is updated to the user's value.
1560 * Next, the device size or the user's "blocks" command line argument
1561 * is used to set fs_blocks_count; the units are blocksize.
1563 * Later, if blocksize hasn't been set and the profile specifies a
1564 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1565 * appropriately. Note the change in units!
1567 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1569 blk64_t fs_blocks_count = 0;
1571 int s_opt = -1, r_opt = -1;
1572 char *fs_features = 0;
1573 int fs_features_size = 0;
1576 int pathlen = sizeof(PATH_SET) + 1;
1577 struct device_param dev_param;
1580 pathlen += strlen(oldpath);
1581 newpath = malloc(pathlen);
1583 fprintf(stderr, "%s",
1584 _("Couldn't allocate memory for new PATH.\n"));
1587 strcpy(newpath, PATH_SET);
1589 /* Update our PATH to include /sbin */
1591 strcat (newpath, ":");
1592 strcat (newpath, oldpath);
1596 /* Determine the system page size if possible */
1598 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1599 #define _SC_PAGESIZE _SC_PAGE_SIZE
1602 sysval = sysconf(_SC_PAGESIZE);
1604 sys_page_size = sysval;
1605 #endif /* _SC_PAGESIZE */
1606 #endif /* HAVE_SYSCONF */
1608 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1610 profile_set_syntax_err_cb(syntax_err_report);
1611 retval = profile_init(config_fn, &profile);
1612 if (retval == ENOENT) {
1613 retval = profile_init(default_files, &profile);
1616 retval = profile_set_default(profile, mke2fs_default_profile);
1619 } else if (retval) {
1621 fprintf(stderr, _("Couldn't init profile successfully"
1622 " (error: %ld).\n"), retval);
1626 setbuf(stdout, NULL);
1627 setbuf(stderr, NULL);
1628 add_error_table(&et_ext2_error_table);
1629 add_error_table(&et_prof_error_table);
1630 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1631 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1633 if (is_before_linux_ver(2, 2, 0))
1634 fs_param.s_rev_level = 0;
1636 if (argc && *argv) {
1637 program_name = get_progname(*argv);
1639 /* If called as mkfs.ext3, create a journal inode */
1640 if (!strcmp(program_name, "mkfs.ext3") ||
1641 !strcmp(program_name, "mke3fs"))
1645 while ((c = getopt (argc, argv,
1646 "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) {
1649 blocksize = parse_num_blocks2(optarg, -1);
1650 b = (blocksize > 0) ? blocksize : -blocksize;
1651 if (b < EXT2_MIN_BLOCK_SIZE ||
1652 b > EXT2_MAX_BLOCK_SIZE) {
1653 com_err(program_name, 0,
1654 _("invalid block size - %s"), optarg);
1657 if (blocksize > 4096)
1658 fprintf(stderr, _("Warning: blocksize %d not "
1659 "usable on most systems.\n"),
1662 fs_param.s_log_block_size =
1663 int_log2(blocksize >>
1664 EXT2_MIN_BLOCK_LOG_SIZE);
1666 case 'c': /* Check for bad blocks */
1670 cluster_size = parse_num_blocks2(optarg, -1);
1671 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1672 cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1673 com_err(program_name, 0,
1674 _("invalid cluster size - %s"),
1680 src_root_dir = optarg;
1686 com_err(program_name, 0, "%s",
1687 _("'-R' is deprecated, use '-E' instead"));
1690 extended_opts = optarg;
1693 if (strcmp(optarg, "continue") == 0)
1694 errors_behavior = EXT2_ERRORS_CONTINUE;
1695 else if (strcmp(optarg, "remount-ro") == 0)
1696 errors_behavior = EXT2_ERRORS_RO;
1697 else if (strcmp(optarg, "panic") == 0)
1698 errors_behavior = EXT2_ERRORS_PANIC;
1700 com_err(program_name, 0,
1701 _("bad error behavior - %s"),
1710 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1712 com_err(program_name, 0, "%s",
1713 _("Illegal number for blocks per group"));
1716 if ((fs_param.s_blocks_per_group % 8) != 0) {
1717 com_err(program_name, 0, "%s",
1718 _("blocks per group must be multiple of 8"));
1723 flex_bg_size = strtoul(optarg, &tmp, 0);
1725 com_err(program_name, 0, "%s",
1726 _("Illegal number for flex_bg size"));
1729 if (flex_bg_size < 1 ||
1730 (flex_bg_size & (flex_bg_size-1)) != 0) {
1731 com_err(program_name, 0, "%s",
1732 _("flex_bg size must be a power of 2"));
1735 if (flex_bg_size > MAX_32_NUM) {
1736 com_err(program_name, 0,
1737 _("flex_bg size (%lu) must be less than"
1738 " or equal to 2^31"), flex_bg_size);
1743 inode_ratio = parse_num_blocks(optarg, -1);
1744 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1745 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1746 com_err(program_name, 0,
1747 _("invalid inode ratio %s (min %d/max %d)"),
1748 optarg, EXT2_MIN_BLOCK_SIZE,
1749 EXT2_MAX_BLOCK_SIZE * 1024);
1754 inode_size = strtoul(optarg, &tmp, 0);
1756 com_err(program_name, 0,
1757 _("invalid inode size - %s"), optarg);
1764 if (!journal_fc_size)
1765 journal_fc_size = -1;
1768 parse_journal_opts(optarg);
1771 fprintf(stderr, "%s",
1772 _("Warning: -K option is deprecated and "
1773 "should not be used anymore. Use "
1774 "\'-E nodiscard\' extended option "
1779 bad_blocks_filename = realloc(bad_blocks_filename,
1780 strlen(optarg) + 1);
1781 if (!bad_blocks_filename) {
1782 com_err(program_name, ENOMEM, "%s",
1783 _("in malloc for bad_blocks_filename"));
1786 strcpy(bad_blocks_filename, optarg);
1789 volume_label = optarg;
1790 if (strlen(volume_label) > EXT2_LABEL_LEN) {
1791 volume_label[EXT2_LABEL_LEN] = '\0';
1792 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1797 reserved_ratio = strtod(optarg, &tmp);
1798 if ( *tmp || reserved_ratio > 50 ||
1799 reserved_ratio < 0) {
1800 com_err(program_name, 0,
1801 _("invalid reserved blocks percent - %s"),
1813 num_inodes = strtoul(optarg, &tmp, 0);
1815 com_err(program_name, 0,
1816 _("bad num inodes - %s"), optarg);
1821 creator_os = optarg;
1824 retval = ext2fs_resize_mem(fs_features_size,
1825 fs_features_size + 1 + strlen(optarg),
1828 com_err(program_name, retval,
1829 _("while allocating fs_feature string"));
1832 if (fs_features_size)
1833 strcat(fs_features, ",");
1836 strcat(fs_features, optarg);
1837 fs_features_size += 1 + strlen(optarg);
1843 r_opt = strtoul(optarg, &tmp, 0);
1845 com_err(program_name, 0,
1846 _("bad revision level - %s"), optarg);
1849 if (r_opt > EXT2_MAX_SUPP_REV) {
1850 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1851 _("while trying to create revision %d"), r_opt);
1854 fs_param.s_rev_level = r_opt;
1856 case 's': /* deprecated */
1857 s_opt = atoi(optarg);
1864 com_err(program_name, 0, "%s",
1865 _("The -t option may only be used once"));
1868 fs_type = strdup(optarg);
1872 com_err(program_name, 0, "%s",
1873 _("The -T option may only be used once"));
1876 usage_types = strdup(optarg);
1885 /* Print version number and exit */
1886 show_version_only++;
1895 if ((optind == argc) && !show_version_only)
1897 device_name = argv[optind++];
1899 if (!quiet || show_version_only)
1900 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1903 if (show_version_only) {
1904 fprintf(stderr, _("\tUsing %s\n"),
1905 error_message(EXT2_ET_BASE));
1910 * If there's no blocksize specified and there is a journal
1911 * device, use it to figure out the blocksize
1913 if (blocksize <= 0 && journal_device) {
1917 #ifdef CONFIG_TESTIO_DEBUG
1918 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1919 io_ptr = test_io_manager;
1920 test_io_backing_manager = unix_io_manager;
1923 io_ptr = unix_io_manager;
1924 retval = ext2fs_open(journal_device,
1925 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1928 com_err(program_name, retval,
1929 _("while trying to open journal device %s\n"),
1933 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1934 com_err(program_name, 0,
1935 _("Journal dev blocksize (%d) smaller than "
1936 "minimum blocksize %d\n"), jfs->blocksize,
1940 blocksize = jfs->blocksize;
1941 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1942 fs_param.s_log_block_size =
1943 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1944 ext2fs_close_free(&jfs);
1947 if (optind < argc) {
1948 fs_blocks_count = parse_num_blocks2(argv[optind++],
1949 fs_param.s_log_block_size);
1950 if (!fs_blocks_count) {
1951 com_err(program_name, 0,
1952 _("invalid blocks '%s' on device '%s'"),
1953 argv[optind - 1], device_name);
1960 profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1962 tmp = getenv("MKE2FS_SYNC");
1964 sync_kludge = atoi(tmp);
1966 profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1969 /* The isatty() test is so we don't break existing scripts */
1970 flags = CREATE_FILE;
1971 if (isatty(0) && isatty(1) && !offset)
1972 flags |= CHECK_FS_EXIST;
1974 flags |= VERBOSE_CREATE;
1975 if (fs_blocks_count == 0)
1978 explicit_fssize = 1;
1979 if (!check_plausibility(device_name, flags, &is_device) && !force)
1980 proceed_question(proceed_delay);
1982 check_mount(device_name, force, _("filesystem"));
1984 /* Determine the size of the device (if possible) */
1985 if (noaction && fs_blocks_count) {
1986 dev_size = fs_blocks_count;
1990 retval = ext2fs_get_device_size2(device_name,
1991 EXT2_BLOCK_SIZE(&fs_param),
1994 retval = ext2fs_get_device_size(device_name,
1995 EXT2_BLOCK_SIZE(&fs_param),
1998 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1999 com_err(program_name, retval, "%s",
2000 _("while trying to determine filesystem size"));
2003 if (!fs_blocks_count) {
2004 if (retval == EXT2_ET_UNIMPLEMENTED) {
2005 com_err(program_name, 0, "%s",
2006 _("Couldn't determine device size; you "
2007 "must specify\nthe size of the "
2011 if (dev_size == 0) {
2012 com_err(program_name, 0, "%s",
2013 _("Device size reported to be zero. "
2014 "Invalid partition specified, or\n\t"
2015 "partition table wasn't reread "
2016 "after running fdisk, due to\n\t"
2017 "a modified partition being busy "
2018 "and in use. You may need to reboot\n\t"
2019 "to re-read your partition table.\n"
2023 fs_blocks_count = dev_size;
2024 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2025 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2026 EXT2_BLOCK_SIZE(&fs_param))-1));
2028 } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2029 com_err(program_name, 0, "%s",
2030 _("Filesystem larger than apparent device size."));
2031 proceed_question(proceed_delay);
2035 profile_get_string(profile, "devices", device_name,
2036 "fs_type", 0, &fs_type);
2038 profile_get_string(profile, "devices", device_name,
2039 "usage_types", 0, &usage_types);
2042 * We have the file system (or device) size, so we can now
2043 * determine the appropriate file system types so the fs can
2044 * be appropriately configured.
2046 fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2047 fs_blocks_count ? fs_blocks_count : dev_size,
2050 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2054 /* Figure out what features should be enabled */
2057 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2058 tmp = get_string_from_profile(fs_types, "base_features",
2059 "sparse_super,large_file,filetype,resize_inode,dir_index");
2060 edit_feature(tmp, &fs_param.s_feature_compat);
2063 /* And which mount options as well */
2064 tmp = get_string_from_profile(fs_types, "default_mntopts",
2066 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2070 for (cpp = fs_types; *cpp; cpp++) {
2072 profile_get_string(profile, "fs_types", *cpp,
2073 "features", "", &tmp);
2075 edit_feature(tmp, &fs_param.s_feature_compat);
2079 tmp = get_string_from_profile(fs_types, "default_features",
2082 /* Mask off features which aren't supported by the Hurd */
2083 if (for_hurd(creator_os)) {
2084 ext2fs_clear_feature_filetype(&fs_param);
2085 ext2fs_clear_feature_huge_file(&fs_param);
2086 ext2fs_clear_feature_metadata_csum(&fs_param);
2087 ext2fs_clear_feature_ea_inode(&fs_param);
2088 ext2fs_clear_feature_casefold(&fs_param);
2090 edit_feature(fs_features ? fs_features : tmp,
2091 &fs_param.s_feature_compat);
2094 (void) ext2fs_free_mem(&fs_features);
2096 * If the user specified features incompatible with the Hurd, complain
2098 if (for_hurd(creator_os)) {
2099 if (ext2fs_has_feature_filetype(&fs_param)) {
2100 fprintf(stderr, "%s", _("The HURD does not support the "
2101 "filetype feature.\n"));
2104 if (ext2fs_has_feature_huge_file(&fs_param)) {
2105 fprintf(stderr, "%s", _("The HURD does not support the "
2106 "huge_file feature.\n"));
2109 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2110 fprintf(stderr, "%s", _("The HURD does not support the "
2111 "metadata_csum feature.\n"));
2114 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2115 fprintf(stderr, "%s", _("The HURD does not support the "
2116 "ea_inode feature.\n"));
2121 /* Get the hardware sector sizes, if available */
2122 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2124 com_err(program_name, retval, "%s",
2125 _("while trying to determine hardware sector size"));
2128 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2130 com_err(program_name, retval, "%s",
2131 _("while trying to determine physical sector size"));
2135 tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2137 lsector_size = atoi(tmp);
2138 tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2140 psector_size = atoi(tmp);
2142 /* Older kernels may not have physical/logical distinction */
2144 psector_size = lsector_size;
2146 if (blocksize <= 0) {
2147 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2149 if (use_bsize == -1) {
2150 use_bsize = sys_page_size;
2151 if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2154 if (lsector_size && use_bsize < lsector_size)
2155 use_bsize = lsector_size;
2156 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2157 use_bsize = -blocksize;
2158 blocksize = use_bsize;
2159 fs_blocks_count /= (blocksize / 1024);
2161 if (blocksize < lsector_size) { /* Impossible */
2162 com_err(program_name, EINVAL, "%s",
2163 _("while setting blocksize; too small "
2166 } else if ((blocksize < psector_size) &&
2167 (psector_size <= sys_page_size)) { /* Suboptimal */
2168 fprintf(stderr, _("Warning: specified blocksize %d is "
2169 "less than device physical sectorsize %d\n"),
2170 blocksize, psector_size);
2174 fs_param.s_log_block_size =
2175 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2178 * We now need to do a sanity check of fs_blocks_count for
2179 * 32-bit vs 64-bit block number support.
2181 if ((fs_blocks_count > MAX_32_NUM) &&
2182 ext2fs_has_feature_64bit(&fs_param))
2183 ext2fs_clear_feature_resize_inode(&fs_param);
2184 if ((fs_blocks_count > MAX_32_NUM) &&
2185 !ext2fs_has_feature_64bit(&fs_param) &&
2186 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2187 ext2fs_set_feature_64bit(&fs_param);
2188 ext2fs_clear_feature_resize_inode(&fs_param);
2190 if ((fs_blocks_count > MAX_32_NUM) &&
2191 !ext2fs_has_feature_64bit(&fs_param)) {
2192 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2193 "too big to be expressed\n\t"
2194 "in 32 bits using a blocksize of %d.\n"),
2195 program_name, fs_blocks_count, device_name,
2196 EXT2_BLOCK_SIZE(&fs_param));
2200 * Guard against group descriptor count overflowing... Mostly to avoid
2201 * strange results for absurdly large devices. This is in log2:
2202 * (blocksize) * (bits per byte) * (maximum number of block groups)
2204 if (fs_blocks_count >
2205 (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2206 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2207 "too big to create\n\t"
2208 "a filesystem using a blocksize of %d.\n"),
2209 program_name, fs_blocks_count, device_name,
2210 EXT2_BLOCK_SIZE(&fs_param));
2214 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2216 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2219 for (i=0; fs_types[i]; i++) {
2223 fs_types[0] = strdup("journal");
2228 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2229 print_str_list(fs_types);
2232 if (r_opt == EXT2_GOOD_OLD_REV &&
2233 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2234 fs_param.s_feature_ro_compat)) {
2235 fprintf(stderr, "%s", _("Filesystem features not supported "
2236 "with revision 0 filesystems\n"));
2241 if (r_opt == EXT2_GOOD_OLD_REV) {
2242 fprintf(stderr, "%s",
2243 _("Sparse superblocks not supported "
2244 "with revision 0 filesystems\n"));
2247 ext2fs_set_feature_sparse_super(&fs_param);
2248 } else if (s_opt == 0)
2249 ext2fs_clear_feature_sparse_super(&fs_param);
2251 if (journal_size != 0) {
2252 if (r_opt == EXT2_GOOD_OLD_REV) {
2253 fprintf(stderr, "%s", _("Journals not supported with "
2254 "revision 0 filesystems\n"));
2257 ext2fs_set_feature_journal(&fs_param);
2260 /* Get reserved_ratio from profile if not specified on cmd line. */
2261 if (reserved_ratio < 0.0) {
2262 reserved_ratio = get_double_from_profile(
2263 fs_types, "reserved_ratio", 5.0);
2264 if (reserved_ratio > 50 || reserved_ratio < 0) {
2265 com_err(program_name, 0,
2266 _("invalid reserved blocks percent - %lf"),
2272 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2274 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2275 fs_param.s_feature_compat = 0;
2276 fs_param.s_feature_ro_compat &=
2277 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2280 /* Check the user's mkfs options for 64bit */
2281 if (ext2fs_has_feature_64bit(&fs_param) &&
2282 !ext2fs_has_feature_extents(&fs_param)) {
2283 printf("%s", _("Extents MUST be enabled for a 64-bit "
2284 "filesystem. Pass -O extents to rectify.\n"));
2288 /* Set first meta blockgroup via an environment variable */
2289 /* (this is mostly for debugging purposes) */
2290 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2291 (tmp = getenv("MKE2FS_FIRST_META_BG")))
2292 fs_param.s_first_meta_bg = atoi(tmp);
2293 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2295 cluster_size = get_int_from_profile(fs_types,
2298 fs_param.s_log_cluster_size =
2299 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2300 if (fs_param.s_log_cluster_size &&
2301 fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2302 com_err(program_name, 0, "%s",
2303 _("The cluster size may not be "
2304 "smaller than the block size.\n"));
2307 } else if (cluster_size) {
2308 com_err(program_name, 0, "%s",
2309 _("specifying a cluster size requires the "
2310 "bigalloc feature"));
2313 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2315 if (inode_ratio == 0) {
2316 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2318 if (inode_ratio < blocksize)
2319 inode_ratio = blocksize;
2320 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2321 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2324 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2325 retval = get_device_geometry(device_name, blocksize,
2326 psector_size, &dev_param);
2329 _("warning: Unable to get device geometry for %s\n"),
2332 /* setting stripe/stride to blocksize is pointless */
2333 if (dev_param.min_io > blocksize)
2334 fs_param.s_raid_stride = dev_param.min_io / blocksize;
2335 if (dev_param.opt_io > blocksize) {
2336 fs_param.s_raid_stripe_width =
2337 dev_param.opt_io / blocksize;
2340 if (dev_param.alignment_offset) {
2341 printf(_("%s alignment is offset by %lu bytes.\n"),
2342 device_name, dev_param.alignment_offset);
2343 printf(_("This may result in very poor performance, "
2344 "(re)-partitioning suggested.\n"));
2347 if (dev_param.dax && blocksize != sys_page_size) {
2349 _("%s is capable of DAX but current block size "
2350 "%u is different from system page size %u so "
2351 "filesystem will not support DAX.\n"),
2352 device_name, blocksize, sys_page_size);
2357 num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2359 blocksize = EXT2_BLOCK_SIZE(&fs_param);
2362 * Initialize s_desc_size so that the parse_extended_opts()
2363 * can correctly handle "-E resize=NNN" if the 64-bit option
2366 if (ext2fs_has_feature_64bit(&fs_param))
2367 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2369 /* This check should happen beyond the last assignment to blocksize */
2370 if (blocksize > sys_page_size) {
2372 com_err(program_name, 0,
2373 _("%d-byte blocks too big for system (max %d)"),
2374 blocksize, sys_page_size);
2375 proceed_question(proceed_delay);
2377 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2378 "(max %d), forced to continue\n"),
2379 blocksize, sys_page_size);
2382 /* Metadata checksumming wasn't totally stable before 3.18. */
2383 if (is_before_linux_ver(3, 18, 0) &&
2384 ext2fs_has_feature_metadata_csum(&fs_param))
2385 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2386 "improved stability of the metadata and journal "
2387 "checksum features.\n"));
2390 * On newer kernels we do have lazy_itable_init support. So pick the
2391 * right default in case ext4 module is not loaded.
2393 if (is_before_linux_ver(2, 6, 37))
2394 lazy_itable_init = 0;
2396 lazy_itable_init = 1;
2398 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2399 lazy_itable_init = 1;
2401 lazy_itable_init = get_bool_from_profile(fs_types,
2404 discard = get_bool_from_profile(fs_types, "discard" , discard);
2405 journal_flags |= get_bool_from_profile(fs_types,
2406 "lazy_journal_init", 0) ?
2407 EXT2_MKJOURNAL_LAZYINIT : 0;
2408 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2410 if (!journal_location_string)
2411 journal_location_string = get_string_from_profile(fs_types,
2412 "journal_location", "");
2413 if ((journal_location == ~0ULL) && journal_location_string &&
2414 *journal_location_string)
2415 journal_location = parse_num_blocks2(journal_location_string,
2416 fs_param.s_log_block_size);
2417 free(journal_location_string);
2419 packed_meta_blocks = get_bool_from_profile(fs_types,
2420 "packed_meta_blocks", 0);
2421 if (packed_meta_blocks)
2422 journal_location = 0;
2424 if (ext2fs_has_feature_casefold(&fs_param)) {
2425 char *ef, *en = get_string_from_profile(fs_types,
2426 "encoding", "utf8");
2427 int encoding = e2p_str2encoding(en);
2430 com_err(program_name, 0,
2431 _("Unknown filename encoding from profile: %s"),
2436 fs_param.s_encoding = encoding;
2437 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2439 if (e2p_str2encoding_flags(encoding, ef,
2440 &fs_param.s_encoding_flags) < 0) {
2441 com_err(program_name, 0,
2442 _("Unknown encoding flags from profile: %s"), ef);
2447 fs_param.s_encoding_flags =
2448 e2p_get_encoding_flags(encoding);
2451 /* Get options from profile */
2452 for (cpp = fs_types; *cpp; cpp++) {
2454 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2456 parse_extended_opts(&fs_param, tmp);
2461 parse_extended_opts(&fs_param, extended_opts);
2463 if (explicit_fssize == 0 && offset > 0) {
2464 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2465 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2467 _("\nWarning: offset specified without an "
2468 "explicit file system size.\n"
2469 "Creating a file system with %llu blocks "
2471 "not be what you want.\n\n"),
2472 (unsigned long long) fs_blocks_count);
2475 if (quotatype_bits & QUOTA_PRJ_BIT)
2476 ext2fs_set_feature_project(&fs_param);
2478 if (ext2fs_has_feature_project(&fs_param)) {
2479 quotatype_bits |= QUOTA_PRJ_BIT;
2480 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2481 com_err(program_name, 0,
2482 _("%d byte inodes are too small for "
2487 if (inode_size == 0) {
2488 inode_size = get_int_from_profile(fs_types,
2490 if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2491 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2495 if (ext2fs_has_feature_casefold(&fs_param) &&
2496 ext2fs_has_feature_encrypt(&fs_param)) {
2497 com_err(program_name, 0, "%s",
2498 _("The encrypt and casefold features are not "
2499 "compatible.\nThey can not be both enabled "
2500 "simultaneously.\n"));
2504 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2505 if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2506 ext2fs_has_feature_gdt_csum(&fs_param))
2507 ext2fs_clear_feature_gdt_csum(&fs_param);
2509 /* Can't support bigalloc feature without extents feature */
2510 if (ext2fs_has_feature_bigalloc(&fs_param) &&
2511 !ext2fs_has_feature_extents(&fs_param)) {
2512 com_err(program_name, 0, "%s",
2513 _("Can't support bigalloc feature without "
2514 "extents feature"));
2518 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2519 ext2fs_has_feature_resize_inode(&fs_param)) {
2520 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2521 "features are not compatible.\n"
2522 "They can not be both enabled "
2523 "simultaneously.\n"));
2527 if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2528 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2529 "still under development\n"
2530 "See https://ext4.wiki.kernel.org/"
2531 "index.php/Bigalloc for more information\n\n"));
2534 * Since sparse_super is the default, we would only have a problem
2535 * here if it was explicitly disabled.
2537 if (ext2fs_has_feature_resize_inode(&fs_param) &&
2538 !ext2fs_has_feature_sparse_super(&fs_param)) {
2539 com_err(program_name, 0, "%s",
2540 _("reserved online resize blocks not supported "
2541 "on non-sparse filesystem"));
2545 if (fs_param.s_blocks_per_group) {
2546 if (fs_param.s_blocks_per_group < 256 ||
2547 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2548 com_err(program_name, 0, "%s",
2549 _("blocks per group count out of range"));
2555 * If the bigalloc feature is enabled, then the -g option will
2556 * specify the number of clusters per group.
2558 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2559 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2560 fs_param.s_blocks_per_group = 0;
2563 if (inode_size == 0)
2564 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2565 if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2566 flex_bg_size = get_uint_from_profile(fs_types,
2567 "flex_bg_size", 16);
2569 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2570 com_err(program_name, 0, "%s",
2571 _("Flex_bg feature not enabled, so "
2572 "flex_bg size may not be specified"));
2575 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2578 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2579 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2580 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2581 inode_size & (inode_size - 1)) {
2582 com_err(program_name, 0,
2583 _("invalid inode size %d (min %d/max %d)"),
2584 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2588 fs_param.s_inode_size = inode_size;
2592 * If inode size is 128 and inline data is enabled, we need
2593 * to notify users that inline data will never be useful.
2595 if (ext2fs_has_feature_inline_data(&fs_param) &&
2596 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2597 com_err(program_name, 0,
2598 _("%d byte inodes are too small for inline data; "
2599 "specify larger size"),
2600 fs_param.s_inode_size);
2604 /* Make sure number of inodes specified will fit in 32 bits */
2605 if (num_inodes == 0) {
2606 unsigned long long n;
2607 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2608 if (n > MAX_32_NUM) {
2609 if (ext2fs_has_feature_64bit(&fs_param))
2610 num_inodes = MAX_32_NUM;
2612 com_err(program_name, 0,
2613 _("too many inodes (%llu), raise "
2614 "inode ratio?"), n);
2618 } else if (num_inodes > MAX_32_NUM) {
2619 com_err(program_name, 0,
2620 _("too many inodes (%llu), specify < 2^32 inodes"),
2625 * Calculate number of inodes based on the inode ratio
2627 fs_param.s_inodes_count = num_inodes ? num_inodes :
2628 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2630 if ((((unsigned long long)fs_param.s_inodes_count) *
2631 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2632 ((ext2fs_blocks_count(&fs_param)) *
2633 EXT2_BLOCK_SIZE(&fs_param))) {
2634 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2635 "(%u) too big for a\n\t"
2636 "filesystem with %llu blocks, "
2637 "specify higher inode_ratio (-i)\n\t"
2638 "or lower inode count (-N).\n"),
2639 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2640 fs_param.s_inodes_count,
2641 (unsigned long long) ext2fs_blocks_count(&fs_param));
2646 * Calculate number of blocks to reserve
2648 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2649 ext2fs_blocks_count(&fs_param) / 100.0);
2651 if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2652 if (num_backups >= 1)
2653 fs_param.s_backup_bgs[0] = 1;
2654 if (num_backups >= 2)
2655 fs_param.s_backup_bgs[1] = ~0;
2662 static int should_do_undo(const char *name)
2667 struct ext2_super_block super;
2668 io_manager manager = unix_io_manager;
2669 int csum_flag, force_undo;
2671 csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2672 ext2fs_has_feature_gdt_csum(&fs_param);
2673 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2674 if (!force_undo && (!csum_flag || !lazy_itable_init))
2677 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
2680 * We don't handle error cases instead we
2681 * declare that the file system doesn't exist
2682 * and let the rest of mke2fs take care of
2689 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2690 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2696 #if defined(WORDS_BIGENDIAN)
2697 s_magic = ext2fs_swab16(super.s_magic);
2699 s_magic = super.s_magic;
2702 if (s_magic == EXT2_SUPER_MAGIC)
2706 io_channel_close(channel);
2713 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2715 errcode_t retval = ENOMEM;
2716 char *tdb_dir = NULL, *tdb_file = NULL;
2717 char *dev_name, *tmp_name;
2718 int free_tdb_dir = 0;
2720 /* (re)open a specific undo file */
2721 if (undo_file && undo_file[0] != 0) {
2722 retval = set_undo_io_backing_manager(*io_ptr);
2725 *io_ptr = undo_io_manager;
2726 retval = set_undo_io_backup_file(undo_file);
2729 printf(_("Overwriting existing filesystem; this can be undone "
2730 "using the command:\n"
2731 " e2undo %s %s\n\n"), undo_file, name);
2736 * Configuration via a conf file would be
2739 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2741 profile_get_string(profile, "defaults",
2742 "undo_dir", 0, "/var/lib/e2fsprogs",
2747 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2748 access(tdb_dir, W_OK)) {
2754 tmp_name = strdup(name);
2757 dev_name = basename(tmp_name);
2758 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2763 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2766 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2768 com_err(program_name, retval,
2769 _("while trying to delete %s"), tdb_file);
2773 retval = set_undo_io_backing_manager(*io_ptr);
2776 *io_ptr = undo_io_manager;
2777 retval = set_undo_io_backup_file(tdb_file);
2780 printf(_("Overwriting existing filesystem; this can be undone "
2781 "using the command:\n"
2782 " e2undo %s %s\n\n"), tdb_file, name);
2794 com_err(program_name, retval, "%s",
2795 _("while trying to setup undo file\n"));
2799 static int mke2fs_discard_device(ext2_filsys fs)
2801 struct ext2fs_numeric_progress_struct progress;
2802 blk64_t blocks = ext2fs_blocks_count(fs->super);
2803 blk64_t count = DISCARD_STEP_MB;
2808 * Let's try if discard really works on the device, so
2809 * we do not print numeric progress resulting in failure
2812 retval = io_channel_discard(fs->io, 0, fs->blocksize);
2815 cur = fs->blocksize;
2817 count *= (1024 * 1024);
2818 count /= fs->blocksize;
2820 ext2fs_numeric_progress_init(fs, &progress,
2821 _("Discarding device blocks: "),
2823 while (cur < blocks) {
2824 ext2fs_numeric_progress_update(fs, &progress, cur);
2826 if (cur + count > blocks)
2827 count = blocks - cur;
2829 retval = io_channel_discard(fs->io, cur, count);
2836 ext2fs_numeric_progress_close(fs, &progress,
2839 printf("%s\n",error_message(retval));
2841 ext2fs_numeric_progress_close(fs, &progress,
2847 static void fix_cluster_bg_counts(ext2_filsys fs)
2849 blk64_t block, num_blocks, last_block, next;
2850 blk64_t tot_free = 0;
2855 num_blocks = ext2fs_blocks_count(fs->super);
2856 last_block = ext2fs_group_last_block2(fs, group);
2857 block = fs->super->s_first_data_block;
2858 while (block < num_blocks) {
2859 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2860 block, last_block, &next);
2864 block = last_block + 1;
2868 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2869 block, last_block, &next);
2871 next = last_block + 1;
2872 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2873 tot_free += next - block;
2876 if (block > last_block) {
2878 ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2879 ext2fs_group_desc_csum_set(fs, group);
2882 last_block = ext2fs_group_last_block2(fs, group);
2885 ext2fs_free_blocks_count_set(fs->super, tot_free);
2888 static int create_quota_inodes(ext2_filsys fs)
2893 retval = quota_init_context(&qctx, fs, quotatype_bits);
2895 com_err(program_name, retval,
2896 _("while initializing quota context"));
2899 quota_compute_usage(qctx);
2900 retval = quota_write_inode(qctx, quotatype_bits);
2902 com_err(program_name, retval,
2903 _("while writing quota inodes"));
2906 quota_release_context(&qctx);
2911 static errcode_t set_error_behavior(ext2_filsys fs)
2914 short errors = fs->super->s_errors;
2916 arg = get_string_from_profile(fs_types, "errors", NULL);
2920 if (strcmp(arg, "continue") == 0)
2921 errors = EXT2_ERRORS_CONTINUE;
2922 else if (strcmp(arg, "remount-ro") == 0)
2923 errors = EXT2_ERRORS_RO;
2924 else if (strcmp(arg, "panic") == 0)
2925 errors = EXT2_ERRORS_PANIC;
2927 com_err(program_name, 0,
2928 _("bad error behavior in profile - %s"),
2931 return EXT2_ET_INVALID_ARGUMENT;
2936 if (errors_behavior)
2937 errors = errors_behavior;
2939 fs->super->s_errors = errors;
2943 int main (int argc, char *argv[])
2945 errcode_t retval = 0;
2947 badblocks_list bb_list = 0;
2948 badblocks_iterate bb_iter;
2950 struct ext2fs_journal_params jparams = {0};
2951 unsigned int i, checkinterval;
2957 char opt_string[40];
2959 int itable_zeroed = 0;
2963 setlocale(LC_MESSAGES, "");
2964 setlocale(LC_CTYPE, "");
2965 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2966 textdomain(NLS_CAT_NAME);
2967 set_com_err_gettext(gettext);
2971 #ifdef CONFIG_TESTIO_DEBUG
2972 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2973 io_ptr = test_io_manager;
2974 test_io_backing_manager = unix_io_manager;
2977 io_ptr = unix_io_manager;
2979 if (undo_file != NULL || should_do_undo(device_name)) {
2980 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2986 * Initialize the superblock....
2988 flags = EXT2_FLAG_EXCLUSIVE;
2990 flags |= EXT2_FLAG_DIRECT_IO;
2991 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2994 flags |= EXT2_FLAG_64BITS;
2996 * By default, we print how many inode tables or block groups
2997 * or whatever we've written so far. The quiet flag disables
2998 * this, along with a lot of other output.
3001 flags |= EXT2_FLAG_PRINT_PROGRESS;
3002 if (android_sparse_file) {
3003 char *android_sparse_params = malloc(strlen(device_name) + 48);
3005 if (!android_sparse_params) {
3006 com_err(program_name, ENOMEM, "%s",
3007 _("in malloc for android_sparse_params"));
3010 sprintf(android_sparse_params, "(%s):%u:%u",
3011 device_name, fs_param.s_blocks_count,
3012 1024 << fs_param.s_log_block_size);
3013 retval = ext2fs_initialize(android_sparse_params, flags,
3014 &fs_param, sparse_io_manager, &fs);
3015 free(android_sparse_params);
3017 retval = ext2fs_initialize(device_name, flags, &fs_param,
3020 com_err(device_name, retval, "%s",
3021 _("while setting up superblock"));
3024 fs->progress_ops = &ext2fs_numeric_progress_ops;
3026 /* Set the error behavior */
3027 retval = set_error_behavior(fs);
3031 /* Check the user's mkfs options for metadata checksumming */
3033 !ext2fs_has_feature_journal_dev(fs->super) &&
3034 ext2fs_has_feature_metadata_csum(fs->super)) {
3035 if (!ext2fs_has_feature_extents(fs->super))
3037 _("Extents are not enabled. The file extent "
3038 "tree can be checksummed, whereas block maps "
3039 "cannot. Not enabling extents reduces the "
3040 "coverage of metadata checksumming. "
3041 "Pass -O extents to rectify.\n"));
3042 if (!ext2fs_has_feature_64bit(fs->super))
3044 _("64-bit filesystem support is not enabled. "
3045 "The larger fields afforded by this feature "
3046 "enable full-strength checksumming. "
3047 "Pass -O 64bit to rectify.\n"));
3050 if (ext2fs_has_feature_csum_seed(fs->super) &&
3051 !ext2fs_has_feature_metadata_csum(fs->super)) {
3052 printf("%s", _("The metadata_csum_seed feature "
3053 "requires the metadata_csum feature.\n"));
3057 /* Calculate journal blocks */
3058 if (!journal_device && ((journal_size) ||
3059 ext2fs_has_feature_journal(&fs_param)))
3060 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3062 sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3063 32768 : fs->blocksize * 8);
3064 io_channel_set_options(fs->io, opt_string);
3066 sprintf(opt_string, "offset=%llu", offset);
3067 io_channel_set_options(fs->io, opt_string);
3070 /* Can't undo discard ... */
3071 if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3072 retval = mke2fs_discard_device(fs);
3073 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3076 _("Discard succeeded and will return "
3077 "0s - skipping inode table wipe\n"));
3078 lazy_itable_init = 1;
3084 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3085 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3087 if (ext2fs_has_feature_flex_bg(&fs_param) ||
3088 ext2fs_has_feature_huge_file(&fs_param) ||
3089 ext2fs_has_feature_gdt_csum(&fs_param) ||
3090 ext2fs_has_feature_dir_nlink(&fs_param) ||
3091 ext2fs_has_feature_metadata_csum(&fs_param) ||
3092 ext2fs_has_feature_extra_isize(&fs_param))
3093 fs->super->s_kbytes_written = 1;
3096 * Wipe out the old on-disk superblock
3099 zap_sector(fs, 2, 6);
3102 * Parse or generate a UUID for the filesystem
3105 if ((strcasecmp(fs_uuid, "null") == 0) ||
3106 (strcasecmp(fs_uuid, "clear") == 0)) {
3107 uuid_clear(fs->super->s_uuid);
3108 } else if (strcasecmp(fs_uuid, "time") == 0) {
3109 uuid_generate_time(fs->super->s_uuid);
3110 } else if (strcasecmp(fs_uuid, "random") == 0) {
3111 uuid_generate(fs->super->s_uuid);
3112 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3113 com_err(device_name, 0, "could not parse UUID: %s\n",
3118 uuid_generate(fs->super->s_uuid);
3120 if (ext2fs_has_feature_csum_seed(fs->super))
3121 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3122 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3124 ext2fs_init_csum_seed(fs);
3127 * Initialize the directory index variables
3129 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3131 hash_alg = e2p_string2hash(hash_alg_str);
3133 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3136 if (memcmp(fs_param.s_hash_seed, zero_buf,
3137 sizeof(fs_param.s_hash_seed)) != 0) {
3138 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3139 sizeof(fs->super->s_hash_seed));
3141 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3144 * Periodic checks can be enabled/disabled via config file.
3145 * Note we override the kernel include file's idea of what the default
3146 * check interval (never) should be. It's a good idea to check at
3147 * least *occasionally*, specially since servers will never rarely get
3148 * to reboot, since Linux is so robust these days. :-)
3150 * 180 days (six months) seems like a good value.
3152 #ifdef EXT2_DFL_CHECKINTERVAL
3153 #undef EXT2_DFL_CHECKINTERVAL
3155 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3157 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3158 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3159 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3161 * Add "jitter" to the superblock's check interval so that we
3162 * don't check all the filesystems at the same time. We use a
3163 * kludgy hack of using the UUID to derive a random jitter value
3165 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3166 val += fs->super->s_uuid[i];
3167 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3169 fs->super->s_max_mnt_count = -1;
3172 * Override the creator OS, if applicable
3174 if (creator_os && !set_os(fs->super, creator_os)) {
3175 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3180 * For the Hurd, we will turn off filetype since it doesn't
3183 if (fs->super->s_creator_os == EXT2_OS_HURD)
3184 ext2fs_clear_feature_filetype(fs->super);
3187 * Set the volume label...
3190 memset(fs->super->s_volume_name, 0,
3191 sizeof(fs->super->s_volume_name));
3192 strncpy((char *) fs->super->s_volume_name, volume_label,
3193 sizeof(fs->super->s_volume_name));
3197 * Set the last mount directory
3200 memset(fs->super->s_last_mounted, 0,
3201 sizeof(fs->super->s_last_mounted));
3202 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3203 sizeof(fs->super->s_last_mounted));
3206 /* Set current default encryption algorithms for data and
3207 * filename encryption */
3208 if (ext2fs_has_feature_encrypt(fs->super)) {
3209 fs->super->s_encrypt_algos[0] =
3210 EXT4_ENCRYPTION_MODE_AES_256_XTS;
3211 fs->super->s_encrypt_algos[1] =
3212 EXT4_ENCRYPTION_MODE_AES_256_CTS;
3215 if (ext2fs_has_feature_metadata_csum(fs->super))
3216 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3218 if (!quiet || noaction)
3224 if (ext2fs_has_feature_journal_dev(fs->super)) {
3225 create_journal_dev(fs);
3227 exit(ext2fs_close_free(&fs) ? 1 : 0);
3230 if (bad_blocks_filename)
3231 read_bb_file(fs, &bb_list, bad_blocks_filename);
3233 test_disk(fs, &bb_list);
3234 handle_bad_blocks(fs, bb_list);
3236 fs->stride = fs_stride = fs->super->s_raid_stride;
3238 printf("%s", _("Allocating group tables: "));
3239 if (ext2fs_has_feature_flex_bg(fs->super) &&
3241 retval = packed_allocate_tables(fs);
3243 retval = ext2fs_allocate_tables(fs);
3245 com_err(program_name, retval, "%s",
3246 _("while trying to allocate filesystem tables"));
3250 printf("%s", _("done \n"));
3253 * Unmark bad blocks to calculate overhead, because metadata
3254 * blocks and bad blocks can land on the same allocation cluster.
3257 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3260 com_err("ext2fs_badblocks_list_iterate_begin", retval,
3261 "%s", _("while unmarking bad blocks"));
3264 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3265 ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3266 ext2fs_badblocks_list_iterate_end(bb_iter);
3269 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3271 com_err(program_name, retval, "%s",
3272 _("\n\twhile converting subcluster bitmap"));
3276 retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3277 ext2fs_blocks_count(fs->super) - 1,
3280 com_err(program_name, retval, "%s",
3281 _("while calculating overhead"));
3286 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3289 com_err("ext2fs_badblocks_list_iterate_begin", retval,
3290 "%s", _("while marking bad blocks as used"));
3293 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3294 ext2fs_mark_block_bitmap2(fs->block_map, blk);
3295 ext2fs_badblocks_list_iterate_end(bb_iter);
3299 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3300 printf(_("%s may be further corrupted by superblock rewrite\n"),
3303 proceed_question(proceed_delay);
3304 fs->super->s_state |= EXT2_ERROR_FS;
3305 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3307 * The command "mke2fs -S" is used to recover
3308 * corrupted file systems, so do not mark any of the
3309 * inodes as unused; we want e2fsck to consider all
3310 * inodes as potentially containing recoverable data.
3312 if (ext2fs_has_group_desc_csum(fs)) {
3313 for (i = 0; i < fs->group_desc_count; i++)
3314 ext2fs_bg_itable_unused_set(fs, i, 0);
3317 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3318 blk64_t rsv = 65536 / fs->blocksize;
3319 blk64_t blocks = ext2fs_blocks_count(fs->super);
3323 #ifdef ZAP_BOOTBLOCK
3324 zap_sector(fs, 0, 2);
3328 * Wipe out any old MD RAID (or other) metadata at the end
3329 * of the device. This will also verify that the device is
3330 * as large as we think. Be careful with very small devices.
3332 start = (blocks & ~(rsv - 1));
3336 retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3340 com_err(program_name, retval,
3341 _("while zeroing block %llu at end of filesystem"),
3344 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3345 create_root_dir(fs);
3346 create_lost_and_found(fs);
3348 create_bad_block_inode(fs, bb_list);
3349 if (ext2fs_has_feature_resize_inode(fs->super)) {
3350 retval = ext2fs_create_resize_inode(fs);
3352 com_err("ext2fs_create_resize_inode", retval,
3354 _("while reserving blocks for online resize"));
3360 if (journal_device) {
3363 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3365 proceed_question(proceed_delay);
3366 check_mount(journal_device, force, _("journal"));
3368 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3369 EXT2_FLAG_JOURNAL_DEV_OK, 0,
3370 fs->blocksize, unix_io_manager, &jfs);
3372 com_err(program_name, retval,
3373 _("while trying to open journal device %s\n"),
3378 printf(_("Adding journal to device %s: "),
3382 retval = ext2fs_add_journal_device(fs, jfs);
3384 com_err (program_name, retval,
3385 _("\n\twhile trying to add journal to device %s"),
3390 printf("%s", _("done\n"));
3391 ext2fs_close_free(&jfs);
3392 free(journal_device);
3393 } else if ((journal_size) ||
3394 ext2fs_has_feature_journal(&fs_param)) {
3395 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3397 printf("%s", _("Skipping journal creation in super-only mode\n"));
3398 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3402 if (!jparams.num_journal_blocks) {
3403 ext2fs_clear_feature_journal(fs->super);
3407 printf(_("Creating journal (%u blocks): "),
3408 jparams.num_journal_blocks + jparams.num_fc_blocks);
3411 retval = ext2fs_add_journal_inode3(fs, &jparams,
3415 com_err(program_name, retval, "%s",
3416 _("\n\twhile trying to create journal"));
3420 printf("%s", _("done\n"));
3424 ext2fs_has_feature_mmp(fs->super)) {
3425 retval = ext2fs_mmp_init(fs);
3427 fprintf(stderr, "%s",
3428 _("\nError while enabling multiple "
3429 "mount protection feature."));
3433 printf(_("Multiple mount protection is enabled "
3434 "with update interval %d seconds.\n"),
3435 fs->super->s_mmp_update_interval);
3438 overhead += fs->super->s_first_data_block;
3440 fs->super->s_overhead_clusters = overhead;
3442 if (ext2fs_has_feature_bigalloc(&fs_param))
3443 fix_cluster_bg_counts(fs);
3444 if (ext2fs_has_feature_quota(&fs_param))
3445 create_quota_inodes(fs);
3447 retval = mk_hugefiles(fs, device_name);
3449 com_err(program_name, retval, "while creating huge files");
3450 /* Copy files from the specified directory */
3453 printf("%s", _("Copying files into the device: "));
3455 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3458 com_err(program_name, retval, "%s",
3459 _("while populating file system"));
3462 printf("%s", _("done\n"));
3466 printf("%s", _("Writing superblocks and "
3467 "filesystem accounting information: "));
3468 checkinterval = fs->super->s_checkinterval;
3469 max_mnt_count = fs->super->s_max_mnt_count;
3470 retval = ext2fs_close_free(&fs);
3472 com_err(program_name, retval, "%s",
3473 _("while writing out and closing file system"));
3475 } else if (!quiet) {
3476 printf("%s", _("done\n\n"));
3477 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3478 print_check_message(max_mnt_count, checkinterval);
3481 remove_error_table(&et_ext2_error_table);
3482 remove_error_table(&et_prof_error_table);
3483 profile_release(profile);
3484 for (i=0; fs_types[i]; i++)