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;
96 static int lazy_itable_init;
97 static int packed_meta_blocks;
99 static char *bad_blocks_filename = NULL;
100 static __u32 fs_stride;
101 /* Initialize usr/grp quotas by default */
102 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
104 static blk64_t journal_location = ~0LL;
105 static int proceed_delay = -1;
106 static blk64_t dev_size;
108 static struct ext2_super_block fs_param;
109 static __u32 zero_buf[4];
110 static char *fs_uuid = NULL;
111 static char *creator_os;
112 static char *volume_label;
113 static char *mount_dir;
114 char *journal_device;
115 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
117 const char *src_root_dir; /* Copy files from the specified directory */
118 static char *undo_file;
120 static int android_sparse_file; /* -E android_sparse */
122 static profile_t profile;
124 static int sys_page_size = 4096;
126 static int errors_behavior = 0;
128 static void usage(void)
130 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
131 "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
132 "[-J journal-options]\n"
133 "\t[-G flex-group-size] [-N number-of-inodes] "
134 "[-d root-directory]\n"
135 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
136 "\t[-g blocks-per-group] [-L volume-label] "
137 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
138 "[-r fs-revision] [-E extended-option[,...]]\n"
139 "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
141 "\t[-jnqvDFSV] device [blocks-count]\n"),
146 static int int_log2(unsigned long long arg)
158 int int_log10(unsigned long long arg)
168 static int parse_version_number(const char *s)
170 int major, minor, rev;
176 major = strtol(cp, &endptr, 10);
177 if (cp == endptr || *endptr != '.')
180 minor = strtol(cp, &endptr, 10);
181 if (cp == endptr || *endptr != '.')
184 rev = strtol(cp, &endptr, 10);
187 return KERNEL_VERSION(major, minor, rev);
190 static int is_before_linux_ver(unsigned int major, unsigned int minor,
194 static int linux_version_code = -1;
200 if (linux_version_code < 0)
201 linux_version_code = parse_version_number(ut.release);
202 if (linux_version_code == 0)
205 return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
208 static int is_before_linux_ver(unsigned int major, unsigned int minor,
216 * Helper function for read_bb_file and test_disk
218 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
220 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
225 * Reads the bad blocks list from a file
227 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
228 const char *bad_blocks_file)
233 f = fopen(bad_blocks_file, "r");
235 com_err("read_bad_blocks_file", errno,
236 _("while trying to open %s"), bad_blocks_file);
239 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
242 com_err("ext2fs_read_bb_FILE", retval, "%s",
243 _("while reading in list of bad blocks from file"));
249 * Runs the badblocks program to test the disk
251 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
257 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
258 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
259 fs->device_name, ext2fs_blocks_count(fs->super)-1);
261 printf(_("Running command: %s\n"), buf);
264 com_err("popen", errno,
265 _("while trying to run '%s'"), buf);
268 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
271 com_err("ext2fs_read_bb_FILE", retval, "%s",
272 _("while processing list of bad blocks from program"));
277 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
281 unsigned must_be_good;
283 badblocks_iterate bb_iter;
293 * The primary superblock and group descriptors *must* be
294 * good; if not, abort.
296 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
297 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
298 if (ext2fs_badblocks_list_test(bb_list, i)) {
299 fprintf(stderr, _("Block %d in primary "
300 "superblock/group descriptor area bad.\n"), i);
301 fprintf(stderr, _("Blocks %u through %u must be good "
302 "in order to build a filesystem.\n"),
303 fs->super->s_first_data_block, must_be_good);
304 fputs(_("Aborting....\n"), stderr);
310 * See if any of the bad blocks are showing up in the backup
311 * superblocks and/or group descriptors. If so, issue a
312 * warning and adjust the block counts appropriately.
314 group_block = fs->super->s_first_data_block +
315 fs->super->s_blocks_per_group;
317 for (i = 1; i < fs->group_desc_count; i++) {
319 for (j=0; j < fs->desc_blocks+1; j++) {
320 if (ext2fs_badblocks_list_test(bb_list,
324 _("Warning: the backup superblock/group descriptors at block %u contain\n"
328 group = ext2fs_group_of_blk2(fs, group_block+j);
329 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
330 ext2fs_group_desc_csum_set(fs, group);
331 ext2fs_free_blocks_count_add(fs->super, 1);
334 group_block += fs->super->s_blocks_per_group;
338 * Mark all the bad blocks as used...
340 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
342 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
343 _("while marking bad blocks as used"));
346 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
347 ext2fs_mark_block_bitmap2(fs->block_map, blk);
348 ext2fs_badblocks_list_iterate_end(bb_iter);
351 static void write_reserved_inodes(ext2_filsys fs)
355 struct ext2_inode *inode;
357 retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
359 com_err("inode_init", retval, _("while allocating memory"));
363 for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
364 retval = ext2fs_write_inode_full(fs, ino, inode,
365 EXT2_INODE_SIZE(fs->super));
367 com_err("ext2fs_write_inode_full", retval,
368 _("while writing reserved inodes"));
373 ext2fs_free_mem(&inode);
376 static errcode_t packed_allocate_tables(ext2_filsys fs)
382 for (i = 0; i < fs->group_desc_count; i++) {
383 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
386 ext2fs_block_alloc_stats2(fs, goal, +1);
387 ext2fs_block_bitmap_loc_set(fs, i, goal);
389 for (i = 0; i < fs->group_desc_count; i++) {
390 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
393 ext2fs_block_alloc_stats2(fs, goal, +1);
394 ext2fs_inode_bitmap_loc_set(fs, i, goal);
396 for (i = 0; i < fs->group_desc_count; i++) {
397 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
398 retval = ext2fs_get_free_blocks2(fs, goal, end,
399 fs->inode_blocks_per_group,
400 fs->block_map, &goal);
403 ext2fs_block_alloc_stats_range(fs, goal,
404 fs->inode_blocks_per_group, +1);
405 ext2fs_inode_table_loc_set(fs, i, goal);
406 ext2fs_group_desc_csum_set(fs, i);
411 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
417 struct ext2fs_numeric_progress_struct progress;
419 ext2fs_numeric_progress_init(fs, &progress,
420 _("Writing inode tables: "),
421 fs->group_desc_count);
423 for (i = 0; i < fs->group_desc_count; i++) {
424 ext2fs_numeric_progress_update(fs, &progress, i);
426 blk = ext2fs_inode_table_loc(fs, i);
427 num = fs->inode_blocks_per_group;
430 num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
431 ext2fs_bg_itable_unused(fs, i)) *
432 EXT2_INODE_SIZE(fs->super),
433 EXT2_BLOCK_SIZE(fs->super));
434 if (!lazy_flag || itable_zeroed) {
435 /* The kernel doesn't need to zero the itable blocks */
436 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
437 ext2fs_group_desc_csum_set(fs, i);
439 if (!itable_zeroed) {
440 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
442 fprintf(stderr, _("\nCould not write %d "
443 "blocks in inode table starting at %llu: %s\n"),
444 num, blk, error_message(retval));
449 if (sync_kludge == 1)
450 io_channel_flush(fs->io);
451 else if ((i % sync_kludge) == 0)
452 io_channel_flush(fs->io);
455 ext2fs_numeric_progress_close(fs, &progress,
458 /* Reserved inodes must always have correct checksums */
459 if (ext2fs_has_feature_metadata_csum(fs->super))
460 write_reserved_inodes(fs);
463 static void create_root_dir(ext2_filsys fs)
466 struct ext2_inode inode;
468 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
470 com_err("ext2fs_mkdir", retval, "%s",
471 _("while creating root dir"));
474 if (root_uid != 0 || root_gid != 0) {
475 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
477 com_err("ext2fs_read_inode", retval, "%s",
478 _("while reading root inode"));
482 inode.i_uid = root_uid;
483 ext2fs_set_i_uid_high(inode, root_uid >> 16);
484 inode.i_gid = root_gid;
485 ext2fs_set_i_gid_high(inode, root_gid >> 16);
487 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
489 com_err("ext2fs_write_inode", retval, "%s",
490 _("while setting root inode ownership"));
496 static void create_lost_and_found(ext2_filsys fs)
498 unsigned int lpf_size = 0;
501 const char *name = "lost+found";
505 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
507 com_err("ext2fs_mkdir", retval, "%s",
508 _("while creating /lost+found"));
512 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
514 com_err("ext2_lookup", retval, "%s",
515 _("while looking up /lost+found"));
519 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
520 /* Ensure that lost+found is at least 2 blocks, so we always
521 * test large empty blocks for big-block filesystems. */
522 if ((lpf_size += fs->blocksize) >= 16*1024 &&
523 lpf_size >= 2 * fs->blocksize)
525 retval = ext2fs_expand_dir(fs, ino);
527 com_err("ext2fs_expand_dir", retval, "%s",
528 _("while expanding /lost+found"));
534 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
538 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
539 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
540 retval = ext2fs_update_bb_inode(fs, bb_list);
542 com_err("ext2fs_update_bb_inode", retval, "%s",
543 _("while setting bad block inode"));
549 static void reserve_inodes(ext2_filsys fs)
553 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
554 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
555 ext2fs_mark_ib_dirty(fs);
558 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
559 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
560 #define BSD_LABEL_OFFSET 64
562 static void zap_sector(ext2_filsys fs, int sect, int nsect)
568 buf = calloc(512, nsect);
570 printf(_("Out of memory erasing sectors %d-%d\n"),
571 sect, sect + nsect - 1);
576 /* Check for a BSD disklabel, and don't erase it if so */
577 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
580 _("Warning: could not read block 0: %s\n"),
581 error_message(retval));
583 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
584 if ((*magic == BSD_DISKMAGIC) ||
585 (*magic == BSD_MAGICDISK))
590 memset(buf, 0, 512*nsect);
591 io_channel_set_blksize(fs->io, 512);
592 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
593 io_channel_set_blksize(fs->io, fs->blocksize);
596 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
597 sect, error_message(retval));
600 static void create_journal_dev(ext2_filsys fs)
602 struct ext2fs_numeric_progress_struct progress;
605 blk64_t blk, err_blk;
606 int c, count, err_count;
608 retval = ext2fs_create_journal_superblock(fs,
609 ext2fs_blocks_count(fs->super), 0, &buf);
611 com_err("create_journal_dev", retval, "%s",
612 _("while initializing journal superblock"));
616 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
617 goto write_superblock;
619 ext2fs_numeric_progress_init(fs, &progress,
620 _("Zeroing journal device: "),
621 ext2fs_blocks_count(fs->super));
623 count = ext2fs_blocks_count(fs->super);
629 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
631 com_err("create_journal_dev", retval,
632 _("while zeroing journal device "
633 "(block %llu, count %d)"),
639 ext2fs_numeric_progress_update(fs, &progress, blk);
642 ext2fs_numeric_progress_close(fs, &progress, NULL);
644 retval = io_channel_write_blk64(fs->io,
645 fs->super->s_first_data_block+1,
647 (void) ext2fs_free_mem(&buf);
649 com_err("create_journal_dev", retval, "%s",
650 _("while writing journal superblock"));
655 static void show_stats(ext2_filsys fs)
657 struct ext2_super_block *s = fs->super;
664 printf(_("Creating filesystem with %llu %dk blocks and "
666 ext2fs_blocks_count(s), fs->blocksize >> 10,
671 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
672 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
673 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
675 printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
677 os = e2p_os2string(fs->super->s_creator_os);
679 printf(_("OS type: %s\n"), os);
681 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
682 s->s_log_block_size);
683 if (ext2fs_has_feature_bigalloc(fs->super))
684 printf(_("Cluster size=%u (log=%u)\n"),
685 fs->blocksize << fs->cluster_ratio_bits,
686 s->s_log_cluster_size);
688 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
689 s->s_log_cluster_size);
690 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
691 s->s_raid_stride, s->s_raid_stripe_width);
692 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
693 ext2fs_blocks_count(s));
694 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
695 ext2fs_r_blocks_count(s),
696 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
697 printf(_("First data block=%u\n"), s->s_first_data_block);
698 if (root_uid != 0 || root_gid != 0)
699 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
700 if (s->s_reserved_gdt_blocks)
701 printf(_("Maximum filesystem blocks=%lu\n"),
702 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
703 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
704 if (fs->group_desc_count > 1)
705 printf(_("%u block groups\n"), fs->group_desc_count);
707 printf(_("%u block group\n"), fs->group_desc_count);
708 if (ext2fs_has_feature_bigalloc(fs->super))
709 printf(_("%u blocks per group, %u clusters per group\n"),
710 s->s_blocks_per_group, s->s_clusters_per_group);
712 printf(_("%u blocks per group, %u fragments per group\n"),
713 s->s_blocks_per_group, s->s_clusters_per_group);
714 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
717 if (fs->group_desc_count == 1) {
722 if (!e2p_is_null_uuid(s->s_uuid))
723 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
724 printf("%s", _("Superblock backups stored on blocks: "));
725 group_block = s->s_first_data_block;
727 for (i = 1; i < fs->group_desc_count; i++) {
728 group_block += s->s_blocks_per_group;
729 if (!ext2fs_bg_has_super(fs, i))
733 need = int_log10(group_block) + 2;
734 if (need > col_left) {
739 printf("%llu", group_block);
745 * Returns true if making a file system for the Hurd, else 0
747 static int for_hurd(const char *os)
757 return (atoi(os) == EXT2_OS_HURD);
758 return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
762 * Set the S_CREATOR_OS field. Return true if OS is known,
765 static int set_os(struct ext2_super_block *sb, char *os)
768 sb->s_creator_os = atoi (os);
769 else if (strcasecmp(os, "linux") == 0)
770 sb->s_creator_os = EXT2_OS_LINUX;
771 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
772 sb->s_creator_os = EXT2_OS_HURD;
773 else if (strcasecmp(os, "freebsd") == 0)
774 sb->s_creator_os = EXT2_OS_FREEBSD;
775 else if (strcasecmp(os, "lites") == 0)
776 sb->s_creator_os = EXT2_OS_LITES;
782 #define PATH_SET "PATH=/sbin"
784 static void parse_extended_opts(struct ext2_super_block *param,
787 char *buf, *token, *next, *p, *arg, *badopt = 0;
792 char *encoding_flags = NULL;
797 fprintf(stderr, "%s",
798 _("Couldn't allocate memory to parse options!\n"));
802 for (token = buf; token && *token; token = next) {
803 p = strchr(token, ',');
809 arg = strchr(token, '=');
814 if (strcmp(token, "desc-size") == 0 ||
815 strcmp(token, "desc_size") == 0) {
818 if (!ext2fs_has_feature_64bit(&fs_param)) {
820 _("%s requires '-O 64bit'\n"), token);
824 if (param->s_reserved_gdt_blocks != 0) {
826 _("'%s' must be before 'resize=%u'\n"),
827 token, param->s_reserved_gdt_blocks);
836 desc_size = strtoul(arg, &p, 0);
837 if (*p || (desc_size & (desc_size - 1))) {
839 _("Invalid desc_size: '%s'\n"), arg);
843 param->s_desc_size = desc_size;
844 } else if (strcmp(token, "hash_seed") == 0) {
851 (unsigned char *)param->s_hash_seed) != 0) {
853 _("Invalid hash seed: %s\n"), arg);
857 } else if (strcmp(token, "offset") == 0) {
863 offset = strtoull(arg, &p, 0);
865 fprintf(stderr, _("Invalid offset: %s\n"),
870 } else if (strcmp(token, "mmp_update_interval") == 0) {
876 param->s_mmp_update_interval = strtoul(arg, &p, 0);
879 _("Invalid mmp_update_interval: %s\n"),
884 } else if (strcmp(token, "no_copy_xattrs") == 0) {
887 } else if (strcmp(token, "num_backup_sb") == 0) {
893 num_backups = strtoul(arg, &p, 0);
894 if (*p || num_backups > 2) {
896 _("Invalid # of backup "
897 "superblocks: %s\n"),
902 } else if (strcmp(token, "packed_meta_blocks") == 0) {
904 packed_meta_blocks = strtoul(arg, &p, 0);
906 packed_meta_blocks = 1;
907 if (packed_meta_blocks)
908 journal_location = 0;
909 } else if (strcmp(token, "stride") == 0) {
915 param->s_raid_stride = strtoul(arg, &p, 0);
918 _("Invalid stride parameter: %s\n"),
923 } else if (strcmp(token, "stripe-width") == 0 ||
924 strcmp(token, "stripe_width") == 0) {
930 param->s_raid_stripe_width = strtoul(arg, &p, 0);
933 _("Invalid stripe-width parameter: %s\n"),
938 } else if (!strcmp(token, "resize")) {
940 unsigned long bpg, rsv_groups;
941 unsigned long group_desc_count, desc_blocks;
942 unsigned int gdpb, blocksize;
951 resize = parse_num_blocks2(arg,
952 param->s_log_block_size);
956 _("Invalid resize parameter: %s\n"),
961 if (resize <= ext2fs_blocks_count(param)) {
962 fprintf(stderr, "%s",
963 _("The resize maximum must be greater "
964 "than the filesystem size.\n"));
969 blocksize = EXT2_BLOCK_SIZE(param);
970 bpg = param->s_blocks_per_group;
973 gdpb = EXT2_DESC_PER_BLOCK(param);
974 group_desc_count = (__u32) ext2fs_div64_ceil(
975 ext2fs_blocks_count(param), bpg);
976 desc_blocks = (group_desc_count +
978 rsv_groups = ext2fs_div64_ceil(resize, bpg);
979 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
981 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
982 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
985 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
986 fprintf(stderr, "%s",
987 _("On-line resizing not supported with revision 0 filesystems\n"));
991 ext2fs_set_feature_resize_inode(param);
993 param->s_reserved_gdt_blocks = rsv_gdb;
995 } else if (!strcmp(token, "test_fs")) {
996 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
997 } else if (!strcmp(token, "lazy_itable_init")) {
999 lazy_itable_init = strtoul(arg, &p, 0);
1001 lazy_itable_init = 1;
1002 } else if (!strcmp(token, "lazy_journal_init")) {
1004 journal_flags |= strtoul(arg, &p, 0) ?
1005 EXT2_MKJOURNAL_LAZYINIT : 0;
1007 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1008 } else if (!strcmp(token, "root_owner")) {
1010 root_uid = strtoul(arg, &p, 0);
1013 _("Invalid root_owner: '%s'\n"),
1019 root_gid = strtoul(p, &p, 0);
1022 _("Invalid root_owner: '%s'\n"),
1028 root_uid = getuid();
1029 root_gid = getgid();
1031 } else if (!strcmp(token, "discard")) {
1033 } else if (!strcmp(token, "nodiscard")) {
1035 } else if (!strcmp(token, "quotatype")) {
1036 char *errtok = NULL;
1044 ret = parse_quota_types(arg, "atype_bits, &errtok);
1048 "Failed to parse quota type at %s", errtok);
1051 com_err(program_name, ret,
1052 "while parsing quota type");
1057 } else if (!strcmp(token, "android_sparse")) {
1058 android_sparse_file = 1;
1059 } else if (!strcmp(token, "encoding")) {
1065 encoding = e2p_str2encoding(arg);
1067 fprintf(stderr, _("Invalid encoding: %s"), arg);
1071 param->s_encoding = encoding;
1072 ext2fs_set_feature_casefold(param);
1073 } else if (!strcmp(token, "encoding_flags")) {
1078 encoding_flags = arg;
1085 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1086 "Extended options are separated by commas, "
1087 "and may take an argument which\n"
1088 "\tis set off by an equals ('=') sign.\n\n"
1089 "Valid extended options are:\n"
1090 "\tmmp_update_interval=<interval>\n"
1091 "\tnum_backup_sb=<0|1|2>\n"
1092 "\tstride=<RAID per-disk data chunk in blocks>\n"
1093 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1094 "\toffset=<offset to create the file system>\n"
1095 "\tresize=<resize maximum size in blocks>\n"
1096 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1097 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1098 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1099 "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1103 "\tencoding=<encoding>\n"
1104 "\tencoding_flags=<flags>\n"
1105 "\tquotatype=<quota type(s) to be enabled>\n\n"),
1106 badopt ? badopt : "");
1110 if (param->s_raid_stride &&
1111 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1112 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1113 "multiple of stride %u.\n\n"),
1114 param->s_raid_stripe_width, param->s_raid_stride);
1116 if (ext2fs_has_feature_casefold(param)) {
1117 param->s_encoding_flags =
1118 e2p_get_encoding_flags(param->s_encoding);
1120 if (encoding_flags &&
1121 e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1122 ¶m->s_encoding_flags)) {
1123 fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1128 } else if (encoding_flags) {
1129 fprintf(stderr, _("error: An encoding must be explicitly "
1130 "specified when passing encoding-flags\n"));
1138 static __u32 ok_features[3] = {
1140 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1141 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1142 EXT2_FEATURE_COMPAT_DIR_INDEX |
1143 EXT2_FEATURE_COMPAT_EXT_ATTR |
1144 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1146 EXT2_FEATURE_INCOMPAT_FILETYPE|
1147 EXT3_FEATURE_INCOMPAT_EXTENTS|
1148 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1149 EXT2_FEATURE_INCOMPAT_META_BG|
1150 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1151 EXT4_FEATURE_INCOMPAT_EA_INODE|
1152 EXT4_FEATURE_INCOMPAT_MMP |
1153 EXT4_FEATURE_INCOMPAT_64BIT|
1154 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1155 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1156 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1157 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1158 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1160 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1161 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1162 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1163 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1164 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1165 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1166 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1167 EXT4_FEATURE_RO_COMPAT_QUOTA|
1168 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1169 EXT4_FEATURE_RO_COMPAT_PROJECT|
1170 EXT4_FEATURE_RO_COMPAT_VERITY
1174 static void syntax_err_report(const char *filename, long err, int line_num)
1177 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1178 filename, line_num, error_message(err));
1182 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1184 static void edit_feature(const char *str, __u32 *compat_array)
1189 if (e2p_edit_feature(str, compat_array, ok_features)) {
1190 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1196 static void edit_mntopts(const char *str, __u32 *mntopts)
1201 if (e2p_edit_mntopts(str, mntopts, ~0)) {
1202 fprintf(stderr, _("Invalid mount option set: %s\n"),
1214 static errcode_t init_list(struct str_list *sl)
1218 sl->list = malloc((sl->max+1) * sizeof(char *));
1225 static errcode_t push_string(struct str_list *sl, const char *str)
1229 if (sl->num >= sl->max) {
1231 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1234 sl->list = new_list;
1236 sl->list[sl->num] = malloc(strlen(str)+1);
1237 if (sl->list[sl->num] == 0)
1239 strcpy(sl->list[sl->num], str);
1241 sl->list[sl->num] = 0;
1245 static void print_str_list(char **list)
1249 for (cpp = list; *cpp; cpp++) {
1250 printf("'%s'", *cpp);
1252 fputs(", ", stdout);
1254 fputc('\n', stdout);
1258 * Return TRUE if the profile has the given subsection
1260 static int profile_has_subsection(profile_t prof, const char *section,
1261 const char *subsection)
1264 const char *names[4];
1269 names[1] = subsection;
1272 if (profile_iterator_create(prof, names,
1273 PROFILE_ITER_LIST_SECTION |
1274 PROFILE_ITER_RELATIONS_ONLY, &state))
1277 if ((profile_iterator(&state, &name, 0) == 0) && name) {
1282 profile_iterator_free(&state);
1286 static char **parse_fs_type(const char *fs_type,
1287 const char *usage_types,
1288 struct ext2_super_block *sb,
1289 blk64_t fs_blocks_count,
1292 const char *ext_type = 0;
1294 char *profile_type = 0;
1296 const char *size_type;
1297 struct str_list list;
1298 unsigned long long meg;
1299 int is_hurd = for_hurd(creator_os);
1301 if (init_list(&list))
1308 else if (!strcmp(program_name, "mke3fs"))
1310 else if (!strcmp(program_name, "mke4fs"))
1312 else if (progname) {
1313 ext_type = strrchr(progname, '/');
1317 ext_type = progname;
1319 if (!strncmp(ext_type, "mkfs.", 5)) {
1321 if (ext_type[0] == 0)
1328 profile_get_string(profile, "defaults", "fs_type", 0,
1329 "ext2", &profile_type);
1330 ext_type = profile_type;
1331 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1336 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1337 strcmp(ext_type, "ext2")) {
1338 printf(_("\nYour mke2fs.conf file does not define the "
1339 "%s filesystem type.\n"), ext_type);
1340 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1341 !strcmp(ext_type, "ext4dev")) {
1342 printf("%s", _("You probably need to install an "
1343 "updated mke2fs.conf file.\n\n"));
1346 printf("%s", _("Aborting...\n"));
1351 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1352 if (fs_blocks_count < 3 * meg)
1353 size_type = "floppy";
1354 else if (fs_blocks_count < 512 * meg)
1355 size_type = "small";
1356 else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1357 size_type = "default";
1358 else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1364 usage_types = size_type;
1366 parse_str = malloc(strlen(usage_types)+1);
1372 strcpy(parse_str, usage_types);
1375 push_string(&list, ext_type);
1378 t = strchr(cp, ',');
1383 if (profile_has_subsection(profile, "fs_types", cp))
1384 push_string(&list, cp);
1385 else if (strcmp(cp, "default") != 0)
1387 _("\nWarning: the fs_type %s is not "
1388 "defined in mke2fs.conf\n\n"),
1399 push_string(&list, "hurd");
1403 char *get_string_from_profile(char **types, const char *opt,
1404 const char *def_val)
1409 for (i=0; types[i]; i++);
1410 for (i-=1; i >=0 ; i--) {
1411 profile_get_string(profile, "fs_types", types[i],
1416 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1420 int get_int_from_profile(char **types, const char *opt, int def_val)
1425 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1426 for (cpp = types; *cpp; cpp++)
1427 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1431 static unsigned int get_uint_from_profile(char **types, const char *opt,
1432 unsigned int def_val)
1437 profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1438 for (cpp = types; *cpp; cpp++)
1439 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1443 static double get_double_from_profile(char **types, const char *opt,
1449 profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1450 for (cpp = types; *cpp; cpp++)
1451 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1455 int get_bool_from_profile(char **types, const char *opt, int def_val)
1460 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1461 for (cpp = types; *cpp; cpp++)
1462 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1466 extern const char *mke2fs_default_profile;
1467 static const char *default_files[] = { "<default>", 0 };
1469 struct device_param {
1470 unsigned long min_io; /* prefered minimum IO size */
1471 unsigned long opt_io; /* optimal IO size */
1472 unsigned long alignment_offset; /* alignment offset wrt physical block size */
1473 unsigned int dax:1; /* supports dax? */
1476 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1478 * Sets the geometry of a device (stripe/stride), and returns the
1479 * device's alignment offset, if any, or a negative error.
1481 static int get_device_geometry(const char *file,
1482 unsigned int blocksize,
1483 unsigned int psector_size,
1484 struct device_param *dev_param)
1489 struct stat statbuf;
1491 memset(dev_param, 0, sizeof(*dev_param));
1493 /* Nothing to do for a regular file */
1494 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1497 pr = blkid_new_probe_from_filename(file);
1501 tp = blkid_probe_get_topology(pr);
1505 dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1506 dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1507 if ((dev_param->min_io == 0) && (psector_size > blocksize))
1508 dev_param->min_io = psector_size;
1509 if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1510 dev_param->opt_io = dev_param->min_io;
1511 if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1512 dev_param->opt_io = psector_size;
1514 dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1515 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1516 dev_param->dax = blkid_topology_get_dax(tp);
1520 blkid_free_probe(pr);
1525 static void PRS(int argc, char *argv[])
1528 int cluster_size = 0;
1530 int explicit_fssize = 0;
1532 int inode_ratio = 0;
1534 unsigned long flex_bg_size = 0;
1535 double reserved_ratio = -1.0;
1536 int lsector_size = 0, psector_size = 0;
1537 int show_version_only = 0, is_device = 0;
1538 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1540 char * oldpath = getenv("PATH");
1541 char * extended_opts = 0;
1543 char * usage_types = 0;
1545 * NOTE: A few words about fs_blocks_count and blocksize:
1547 * Initially, blocksize is set to zero, which implies 1024.
1548 * If -b is specified, blocksize is updated to the user's value.
1550 * Next, the device size or the user's "blocks" command line argument
1551 * is used to set fs_blocks_count; the units are blocksize.
1553 * Later, if blocksize hasn't been set and the profile specifies a
1554 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1555 * appropriately. Note the change in units!
1557 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1559 blk64_t fs_blocks_count = 0;
1561 int s_opt = -1, r_opt = -1;
1562 char *fs_features = 0;
1563 int fs_features_size = 0;
1566 int pathlen = sizeof(PATH_SET) + 1;
1567 struct device_param dev_param;
1570 pathlen += strlen(oldpath);
1571 newpath = malloc(pathlen);
1573 fprintf(stderr, "%s",
1574 _("Couldn't allocate memory for new PATH.\n"));
1577 strcpy(newpath, PATH_SET);
1579 /* Update our PATH to include /sbin */
1581 strcat (newpath, ":");
1582 strcat (newpath, oldpath);
1586 /* Determine the system page size if possible */
1588 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1589 #define _SC_PAGESIZE _SC_PAGE_SIZE
1592 sysval = sysconf(_SC_PAGESIZE);
1594 sys_page_size = sysval;
1595 #endif /* _SC_PAGESIZE */
1596 #endif /* HAVE_SYSCONF */
1598 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1600 profile_set_syntax_err_cb(syntax_err_report);
1601 retval = profile_init(config_fn, &profile);
1602 if (retval == ENOENT) {
1603 retval = profile_init(default_files, &profile);
1606 retval = profile_set_default(profile, mke2fs_default_profile);
1609 } else if (retval) {
1611 fprintf(stderr, _("Couldn't init profile successfully"
1612 " (error: %ld).\n"), retval);
1616 setbuf(stdout, NULL);
1617 setbuf(stderr, NULL);
1618 add_error_table(&et_ext2_error_table);
1619 add_error_table(&et_prof_error_table);
1620 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1621 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1623 if (is_before_linux_ver(2, 2, 0))
1624 fs_param.s_rev_level = 0;
1626 if (argc && *argv) {
1627 program_name = get_progname(*argv);
1629 /* If called as mkfs.ext3, create a journal inode */
1630 if (!strcmp(program_name, "mkfs.ext3") ||
1631 !strcmp(program_name, "mke3fs"))
1635 while ((c = getopt (argc, argv,
1636 "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) {
1639 blocksize = parse_num_blocks2(optarg, -1);
1640 b = (blocksize > 0) ? blocksize : -blocksize;
1641 if (b < EXT2_MIN_BLOCK_SIZE ||
1642 b > EXT2_MAX_BLOCK_SIZE) {
1643 com_err(program_name, 0,
1644 _("invalid block size - %s"), optarg);
1647 if (blocksize > 4096)
1648 fprintf(stderr, _("Warning: blocksize %d not "
1649 "usable on most systems.\n"),
1652 fs_param.s_log_block_size =
1653 int_log2(blocksize >>
1654 EXT2_MIN_BLOCK_LOG_SIZE);
1656 case 'c': /* Check for bad blocks */
1660 cluster_size = parse_num_blocks2(optarg, -1);
1661 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1662 cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1663 com_err(program_name, 0,
1664 _("invalid cluster size - %s"),
1670 src_root_dir = optarg;
1676 com_err(program_name, 0, "%s",
1677 _("'-R' is deprecated, use '-E' instead"));
1680 extended_opts = optarg;
1683 if (strcmp(optarg, "continue") == 0)
1684 errors_behavior = EXT2_ERRORS_CONTINUE;
1685 else if (strcmp(optarg, "remount-ro") == 0)
1686 errors_behavior = EXT2_ERRORS_RO;
1687 else if (strcmp(optarg, "panic") == 0)
1688 errors_behavior = EXT2_ERRORS_PANIC;
1690 com_err(program_name, 0,
1691 _("bad error behavior - %s"),
1700 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1702 com_err(program_name, 0, "%s",
1703 _("Illegal number for blocks per group"));
1706 if ((fs_param.s_blocks_per_group % 8) != 0) {
1707 com_err(program_name, 0, "%s",
1708 _("blocks per group must be multiple of 8"));
1713 flex_bg_size = strtoul(optarg, &tmp, 0);
1715 com_err(program_name, 0, "%s",
1716 _("Illegal number for flex_bg size"));
1719 if (flex_bg_size < 1 ||
1720 (flex_bg_size & (flex_bg_size-1)) != 0) {
1721 com_err(program_name, 0, "%s",
1722 _("flex_bg size must be a power of 2"));
1725 if (flex_bg_size > MAX_32_NUM) {
1726 com_err(program_name, 0,
1727 _("flex_bg size (%lu) must be less than"
1728 " or equal to 2^31"), flex_bg_size);
1733 inode_ratio = parse_num_blocks(optarg, -1);
1734 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1735 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1736 com_err(program_name, 0,
1737 _("invalid inode ratio %s (min %d/max %d)"),
1738 optarg, EXT2_MIN_BLOCK_SIZE,
1739 EXT2_MAX_BLOCK_SIZE * 1024);
1744 inode_size = strtoul(optarg, &tmp, 0);
1746 com_err(program_name, 0,
1747 _("invalid inode size - %s"), optarg);
1756 parse_journal_opts(optarg);
1759 fprintf(stderr, "%s",
1760 _("Warning: -K option is deprecated and "
1761 "should not be used anymore. Use "
1762 "\'-E nodiscard\' extended option "
1767 bad_blocks_filename = realloc(bad_blocks_filename,
1768 strlen(optarg) + 1);
1769 if (!bad_blocks_filename) {
1770 com_err(program_name, ENOMEM, "%s",
1771 _("in malloc for bad_blocks_filename"));
1774 strcpy(bad_blocks_filename, optarg);
1777 volume_label = optarg;
1778 if (strlen(volume_label) > EXT2_LABEL_LEN) {
1779 volume_label[EXT2_LABEL_LEN] = '\0';
1780 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1785 reserved_ratio = strtod(optarg, &tmp);
1786 if ( *tmp || reserved_ratio > 50 ||
1787 reserved_ratio < 0) {
1788 com_err(program_name, 0,
1789 _("invalid reserved blocks percent - %s"),
1801 num_inodes = strtoul(optarg, &tmp, 0);
1803 com_err(program_name, 0,
1804 _("bad num inodes - %s"), optarg);
1809 creator_os = optarg;
1812 retval = ext2fs_resize_mem(fs_features_size,
1813 fs_features_size + 1 + strlen(optarg),
1816 com_err(program_name, retval,
1817 _("while allocating fs_feature string"));
1820 if (fs_features_size)
1821 strcat(fs_features, ",");
1824 strcat(fs_features, optarg);
1825 fs_features_size += 1 + strlen(optarg);
1831 r_opt = strtoul(optarg, &tmp, 0);
1833 com_err(program_name, 0,
1834 _("bad revision level - %s"), optarg);
1837 if (r_opt > EXT2_MAX_SUPP_REV) {
1838 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1839 _("while trying to create revision %d"), r_opt);
1842 fs_param.s_rev_level = r_opt;
1844 case 's': /* deprecated */
1845 s_opt = atoi(optarg);
1852 com_err(program_name, 0, "%s",
1853 _("The -t option may only be used once"));
1856 fs_type = strdup(optarg);
1860 com_err(program_name, 0, "%s",
1861 _("The -T option may only be used once"));
1864 usage_types = strdup(optarg);
1873 /* Print version number and exit */
1874 show_version_only++;
1883 if ((optind == argc) && !show_version_only)
1885 device_name = argv[optind++];
1887 if (!quiet || show_version_only)
1888 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1891 if (show_version_only) {
1892 fprintf(stderr, _("\tUsing %s\n"),
1893 error_message(EXT2_ET_BASE));
1898 * If there's no blocksize specified and there is a journal
1899 * device, use it to figure out the blocksize
1901 if (blocksize <= 0 && journal_device) {
1905 #ifdef CONFIG_TESTIO_DEBUG
1906 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1907 io_ptr = test_io_manager;
1908 test_io_backing_manager = unix_io_manager;
1911 io_ptr = unix_io_manager;
1912 retval = ext2fs_open(journal_device,
1913 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1916 com_err(program_name, retval,
1917 _("while trying to open journal device %s\n"),
1921 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1922 com_err(program_name, 0,
1923 _("Journal dev blocksize (%d) smaller than "
1924 "minimum blocksize %d\n"), jfs->blocksize,
1928 blocksize = jfs->blocksize;
1929 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1930 fs_param.s_log_block_size =
1931 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1932 ext2fs_close_free(&jfs);
1935 if (optind < argc) {
1936 fs_blocks_count = parse_num_blocks2(argv[optind++],
1937 fs_param.s_log_block_size);
1938 if (!fs_blocks_count) {
1939 com_err(program_name, 0,
1940 _("invalid blocks '%s' on device '%s'"),
1941 argv[optind - 1], device_name);
1948 profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1950 tmp = getenv("MKE2FS_SYNC");
1952 sync_kludge = atoi(tmp);
1954 profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1957 /* The isatty() test is so we don't break existing scripts */
1958 flags = CREATE_FILE;
1959 if (isatty(0) && isatty(1) && !offset)
1960 flags |= CHECK_FS_EXIST;
1962 flags |= VERBOSE_CREATE;
1963 if (fs_blocks_count == 0)
1966 explicit_fssize = 1;
1967 if (!check_plausibility(device_name, flags, &is_device) && !force)
1968 proceed_question(proceed_delay);
1970 check_mount(device_name, force, _("filesystem"));
1972 /* Determine the size of the device (if possible) */
1973 if (noaction && fs_blocks_count) {
1974 dev_size = fs_blocks_count;
1978 retval = ext2fs_get_device_size2(device_name,
1979 EXT2_BLOCK_SIZE(&fs_param),
1982 retval = ext2fs_get_device_size(device_name,
1983 EXT2_BLOCK_SIZE(&fs_param),
1986 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1987 com_err(program_name, retval, "%s",
1988 _("while trying to determine filesystem size"));
1991 if (!fs_blocks_count) {
1992 if (retval == EXT2_ET_UNIMPLEMENTED) {
1993 com_err(program_name, 0, "%s",
1994 _("Couldn't determine device size; you "
1995 "must specify\nthe size of the "
1999 if (dev_size == 0) {
2000 com_err(program_name, 0, "%s",
2001 _("Device size reported to be zero. "
2002 "Invalid partition specified, or\n\t"
2003 "partition table wasn't reread "
2004 "after running fdisk, due to\n\t"
2005 "a modified partition being busy "
2006 "and in use. You may need to reboot\n\t"
2007 "to re-read your partition table.\n"
2011 fs_blocks_count = dev_size;
2012 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2013 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2014 EXT2_BLOCK_SIZE(&fs_param))-1));
2016 } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2017 com_err(program_name, 0, "%s",
2018 _("Filesystem larger than apparent device size."));
2019 proceed_question(proceed_delay);
2023 profile_get_string(profile, "devices", device_name,
2024 "fs_type", 0, &fs_type);
2026 profile_get_string(profile, "devices", device_name,
2027 "usage_types", 0, &usage_types);
2030 * We have the file system (or device) size, so we can now
2031 * determine the appropriate file system types so the fs can
2032 * be appropriately configured.
2034 fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2035 fs_blocks_count ? fs_blocks_count : dev_size,
2038 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2042 /* Figure out what features should be enabled */
2045 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2046 tmp = get_string_from_profile(fs_types, "base_features",
2047 "sparse_super,large_file,filetype,resize_inode,dir_index");
2048 edit_feature(tmp, &fs_param.s_feature_compat);
2051 /* And which mount options as well */
2052 tmp = get_string_from_profile(fs_types, "default_mntopts",
2054 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2058 for (cpp = fs_types; *cpp; cpp++) {
2060 profile_get_string(profile, "fs_types", *cpp,
2061 "features", "", &tmp);
2063 edit_feature(tmp, &fs_param.s_feature_compat);
2067 tmp = get_string_from_profile(fs_types, "default_features",
2070 /* Mask off features which aren't supported by the Hurd */
2071 if (for_hurd(creator_os)) {
2072 ext2fs_clear_feature_filetype(&fs_param);
2073 ext2fs_clear_feature_huge_file(&fs_param);
2074 ext2fs_clear_feature_metadata_csum(&fs_param);
2075 ext2fs_clear_feature_ea_inode(&fs_param);
2076 ext2fs_clear_feature_casefold(&fs_param);
2078 edit_feature(fs_features ? fs_features : tmp,
2079 &fs_param.s_feature_compat);
2082 (void) ext2fs_free_mem(&fs_features);
2084 * If the user specified features incompatible with the Hurd, complain
2086 if (for_hurd(creator_os)) {
2087 if (ext2fs_has_feature_filetype(&fs_param)) {
2088 fprintf(stderr, "%s", _("The HURD does not support the "
2089 "filetype feature.\n"));
2092 if (ext2fs_has_feature_huge_file(&fs_param)) {
2093 fprintf(stderr, "%s", _("The HURD does not support the "
2094 "huge_file feature.\n"));
2097 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2098 fprintf(stderr, "%s", _("The HURD does not support the "
2099 "metadata_csum feature.\n"));
2102 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2103 fprintf(stderr, "%s", _("The HURD does not support the "
2104 "ea_inode feature.\n"));
2109 /* Get the hardware sector sizes, if available */
2110 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2112 com_err(program_name, retval, "%s",
2113 _("while trying to determine hardware sector size"));
2116 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2118 com_err(program_name, retval, "%s",
2119 _("while trying to determine physical sector size"));
2123 tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2125 lsector_size = atoi(tmp);
2126 tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2128 psector_size = atoi(tmp);
2130 /* Older kernels may not have physical/logical distinction */
2132 psector_size = lsector_size;
2134 if (blocksize <= 0) {
2135 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2137 if (use_bsize == -1) {
2138 use_bsize = sys_page_size;
2139 if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2142 if (lsector_size && use_bsize < lsector_size)
2143 use_bsize = lsector_size;
2144 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2145 use_bsize = -blocksize;
2146 blocksize = use_bsize;
2147 fs_blocks_count /= (blocksize / 1024);
2149 if (blocksize < lsector_size) { /* Impossible */
2150 com_err(program_name, EINVAL, "%s",
2151 _("while setting blocksize; too small "
2154 } else if ((blocksize < psector_size) &&
2155 (psector_size <= sys_page_size)) { /* Suboptimal */
2156 fprintf(stderr, _("Warning: specified blocksize %d is "
2157 "less than device physical sectorsize %d\n"),
2158 blocksize, psector_size);
2162 fs_param.s_log_block_size =
2163 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2166 * We now need to do a sanity check of fs_blocks_count for
2167 * 32-bit vs 64-bit block number support.
2169 if ((fs_blocks_count > MAX_32_NUM) &&
2170 ext2fs_has_feature_64bit(&fs_param))
2171 ext2fs_clear_feature_resize_inode(&fs_param);
2172 if ((fs_blocks_count > MAX_32_NUM) &&
2173 !ext2fs_has_feature_64bit(&fs_param) &&
2174 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2175 ext2fs_set_feature_64bit(&fs_param);
2176 ext2fs_clear_feature_resize_inode(&fs_param);
2178 if ((fs_blocks_count > MAX_32_NUM) &&
2179 !ext2fs_has_feature_64bit(&fs_param)) {
2180 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2181 "too big to be expressed\n\t"
2182 "in 32 bits using a blocksize of %d.\n"),
2183 program_name, fs_blocks_count, device_name,
2184 EXT2_BLOCK_SIZE(&fs_param));
2188 * Guard against group descriptor count overflowing... Mostly to avoid
2189 * strange results for absurdly large devices. This is in log2:
2190 * (blocksize) * (bits per byte) * (maximum number of block groups)
2192 if (fs_blocks_count >
2193 (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2194 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2195 "too big to create\n\t"
2196 "a filesystem using a blocksize of %d.\n"),
2197 program_name, fs_blocks_count, device_name,
2198 EXT2_BLOCK_SIZE(&fs_param));
2202 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2204 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2207 for (i=0; fs_types[i]; i++) {
2211 fs_types[0] = strdup("journal");
2216 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2217 print_str_list(fs_types);
2220 if (r_opt == EXT2_GOOD_OLD_REV &&
2221 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2222 fs_param.s_feature_ro_compat)) {
2223 fprintf(stderr, "%s", _("Filesystem features not supported "
2224 "with revision 0 filesystems\n"));
2229 if (r_opt == EXT2_GOOD_OLD_REV) {
2230 fprintf(stderr, "%s",
2231 _("Sparse superblocks not supported "
2232 "with revision 0 filesystems\n"));
2235 ext2fs_set_feature_sparse_super(&fs_param);
2236 } else if (s_opt == 0)
2237 ext2fs_clear_feature_sparse_super(&fs_param);
2239 if (journal_size != 0) {
2240 if (r_opt == EXT2_GOOD_OLD_REV) {
2241 fprintf(stderr, "%s", _("Journals not supported with "
2242 "revision 0 filesystems\n"));
2245 ext2fs_set_feature_journal(&fs_param);
2248 /* Get reserved_ratio from profile if not specified on cmd line. */
2249 if (reserved_ratio < 0.0) {
2250 reserved_ratio = get_double_from_profile(
2251 fs_types, "reserved_ratio", 5.0);
2252 if (reserved_ratio > 50 || reserved_ratio < 0) {
2253 com_err(program_name, 0,
2254 _("invalid reserved blocks percent - %lf"),
2260 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2262 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2263 fs_param.s_feature_compat = 0;
2264 fs_param.s_feature_ro_compat &=
2265 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2268 /* Check the user's mkfs options for 64bit */
2269 if (ext2fs_has_feature_64bit(&fs_param) &&
2270 !ext2fs_has_feature_extents(&fs_param)) {
2271 printf("%s", _("Extents MUST be enabled for a 64-bit "
2272 "filesystem. Pass -O extents to rectify.\n"));
2276 /* Set first meta blockgroup via an environment variable */
2277 /* (this is mostly for debugging purposes) */
2278 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2279 (tmp = getenv("MKE2FS_FIRST_META_BG")))
2280 fs_param.s_first_meta_bg = atoi(tmp);
2281 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2283 cluster_size = get_int_from_profile(fs_types,
2286 fs_param.s_log_cluster_size =
2287 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2288 if (fs_param.s_log_cluster_size &&
2289 fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2290 com_err(program_name, 0, "%s",
2291 _("The cluster size may not be "
2292 "smaller than the block size.\n"));
2295 } else if (cluster_size) {
2296 com_err(program_name, 0, "%s",
2297 _("specifying a cluster size requires the "
2298 "bigalloc feature"));
2301 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2303 if (inode_ratio == 0) {
2304 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2306 if (inode_ratio < blocksize)
2307 inode_ratio = blocksize;
2308 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2309 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2312 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2313 retval = get_device_geometry(device_name, blocksize,
2314 psector_size, &dev_param);
2317 _("warning: Unable to get device geometry for %s\n"),
2320 /* setting stripe/stride to blocksize is pointless */
2321 if (dev_param.min_io > blocksize)
2322 fs_param.s_raid_stride = dev_param.min_io / blocksize;
2323 if (dev_param.opt_io > blocksize) {
2324 fs_param.s_raid_stripe_width =
2325 dev_param.opt_io / blocksize;
2328 if (dev_param.alignment_offset) {
2329 printf(_("%s alignment is offset by %lu bytes.\n"),
2330 device_name, dev_param.alignment_offset);
2331 printf(_("This may result in very poor performance, "
2332 "(re)-partitioning suggested.\n"));
2335 if (dev_param.dax && blocksize != sys_page_size) {
2337 _("%s is capable of DAX but current block size "
2338 "%u is different from system page size %u so "
2339 "filesystem will not support DAX.\n"),
2340 device_name, blocksize, sys_page_size);
2345 num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2347 blocksize = EXT2_BLOCK_SIZE(&fs_param);
2350 * Initialize s_desc_size so that the parse_extended_opts()
2351 * can correctly handle "-E resize=NNN" if the 64-bit option
2354 if (ext2fs_has_feature_64bit(&fs_param))
2355 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2357 /* This check should happen beyond the last assignment to blocksize */
2358 if (blocksize > sys_page_size) {
2360 com_err(program_name, 0,
2361 _("%d-byte blocks too big for system (max %d)"),
2362 blocksize, sys_page_size);
2363 proceed_question(proceed_delay);
2365 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2366 "(max %d), forced to continue\n"),
2367 blocksize, sys_page_size);
2370 /* Metadata checksumming wasn't totally stable before 3.18. */
2371 if (is_before_linux_ver(3, 18, 0) &&
2372 ext2fs_has_feature_metadata_csum(&fs_param))
2373 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2374 "improved stability of the metadata and journal "
2375 "checksum features.\n"));
2378 * On newer kernels we do have lazy_itable_init support. So pick the
2379 * right default in case ext4 module is not loaded.
2381 if (is_before_linux_ver(2, 6, 37))
2382 lazy_itable_init = 0;
2384 lazy_itable_init = 1;
2386 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2387 lazy_itable_init = 1;
2389 lazy_itable_init = get_bool_from_profile(fs_types,
2392 discard = get_bool_from_profile(fs_types, "discard" , discard);
2393 journal_flags |= get_bool_from_profile(fs_types,
2394 "lazy_journal_init", 0) ?
2395 EXT2_MKJOURNAL_LAZYINIT : 0;
2396 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2398 if (!journal_location_string)
2399 journal_location_string = get_string_from_profile(fs_types,
2400 "journal_location", "");
2401 if ((journal_location == ~0ULL) && journal_location_string &&
2402 *journal_location_string)
2403 journal_location = parse_num_blocks2(journal_location_string,
2404 fs_param.s_log_block_size);
2405 free(journal_location_string);
2407 packed_meta_blocks = get_bool_from_profile(fs_types,
2408 "packed_meta_blocks", 0);
2409 if (packed_meta_blocks)
2410 journal_location = 0;
2412 if (ext2fs_has_feature_casefold(&fs_param)) {
2413 char *ef, *en = get_string_from_profile(fs_types,
2414 "encoding", "utf8");
2415 int encoding = e2p_str2encoding(en);
2418 com_err(program_name, 0,
2419 _("Unknown filename encoding from profile: %s"),
2424 fs_param.s_encoding = encoding;
2425 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2427 if (e2p_str2encoding_flags(encoding, ef,
2428 &fs_param.s_encoding_flags) < 0) {
2429 com_err(program_name, 0,
2430 _("Unknown encoding flags from profile: %s"), ef);
2435 fs_param.s_encoding_flags =
2436 e2p_get_encoding_flags(encoding);
2439 /* Get options from profile */
2440 for (cpp = fs_types; *cpp; cpp++) {
2442 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2444 parse_extended_opts(&fs_param, tmp);
2449 parse_extended_opts(&fs_param, extended_opts);
2451 if (explicit_fssize == 0 && offset > 0) {
2452 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2453 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2455 _("\nWarning: offset specified without an "
2456 "explicit file system size.\n"
2457 "Creating a file system with %llu blocks "
2459 "not be what you want.\n\n"),
2460 (unsigned long long) fs_blocks_count);
2463 if (quotatype_bits & QUOTA_PRJ_BIT)
2464 ext2fs_set_feature_project(&fs_param);
2466 if (ext2fs_has_feature_project(&fs_param)) {
2467 quotatype_bits |= QUOTA_PRJ_BIT;
2468 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2469 com_err(program_name, 0,
2470 _("%d byte inodes are too small for "
2475 if (inode_size == 0) {
2476 inode_size = get_int_from_profile(fs_types,
2478 if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2479 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2483 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2484 if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2485 ext2fs_has_feature_gdt_csum(&fs_param))
2486 ext2fs_clear_feature_gdt_csum(&fs_param);
2488 /* Can't support bigalloc feature without extents feature */
2489 if (ext2fs_has_feature_bigalloc(&fs_param) &&
2490 !ext2fs_has_feature_extents(&fs_param)) {
2491 com_err(program_name, 0, "%s",
2492 _("Can't support bigalloc feature without "
2493 "extents feature"));
2497 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2498 ext2fs_has_feature_resize_inode(&fs_param)) {
2499 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2500 "features are not compatible.\n"
2501 "They can not be both enabled "
2502 "simultaneously.\n"));
2506 if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2507 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2508 "still under development\n"
2509 "See https://ext4.wiki.kernel.org/"
2510 "index.php/Bigalloc for more information\n\n"));
2513 * Since sparse_super is the default, we would only have a problem
2514 * here if it was explicitly disabled.
2516 if (ext2fs_has_feature_resize_inode(&fs_param) &&
2517 !ext2fs_has_feature_sparse_super(&fs_param)) {
2518 com_err(program_name, 0, "%s",
2519 _("reserved online resize blocks not supported "
2520 "on non-sparse filesystem"));
2524 if (fs_param.s_blocks_per_group) {
2525 if (fs_param.s_blocks_per_group < 256 ||
2526 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2527 com_err(program_name, 0, "%s",
2528 _("blocks per group count out of range"));
2534 * If the bigalloc feature is enabled, then the -g option will
2535 * specify the number of clusters per group.
2537 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2538 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2539 fs_param.s_blocks_per_group = 0;
2542 if (inode_size == 0)
2543 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2544 if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2545 flex_bg_size = get_uint_from_profile(fs_types,
2546 "flex_bg_size", 16);
2548 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2549 com_err(program_name, 0, "%s",
2550 _("Flex_bg feature not enabled, so "
2551 "flex_bg size may not be specified"));
2554 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2557 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2558 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2559 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2560 inode_size & (inode_size - 1)) {
2561 com_err(program_name, 0,
2562 _("invalid inode size %d (min %d/max %d)"),
2563 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2567 fs_param.s_inode_size = inode_size;
2571 * If inode size is 128 and inline data is enabled, we need
2572 * to notify users that inline data will never be useful.
2574 if (ext2fs_has_feature_inline_data(&fs_param) &&
2575 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2576 com_err(program_name, 0,
2577 _("%d byte inodes are too small for inline data; "
2578 "specify larger size"),
2579 fs_param.s_inode_size);
2583 /* Make sure number of inodes specified will fit in 32 bits */
2584 if (num_inodes == 0) {
2585 unsigned long long n;
2586 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2587 if (n > MAX_32_NUM) {
2588 if (ext2fs_has_feature_64bit(&fs_param))
2589 num_inodes = MAX_32_NUM;
2591 com_err(program_name, 0,
2592 _("too many inodes (%llu), raise "
2593 "inode ratio?"), n);
2597 } else if (num_inodes > MAX_32_NUM) {
2598 com_err(program_name, 0,
2599 _("too many inodes (%llu), specify < 2^32 inodes"),
2604 * Calculate number of inodes based on the inode ratio
2606 fs_param.s_inodes_count = num_inodes ? num_inodes :
2607 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2609 if ((((unsigned long long)fs_param.s_inodes_count) *
2610 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2611 ((ext2fs_blocks_count(&fs_param)) *
2612 EXT2_BLOCK_SIZE(&fs_param))) {
2613 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2614 "(%u) too big for a\n\t"
2615 "filesystem with %llu blocks, "
2616 "specify higher inode_ratio (-i)\n\t"
2617 "or lower inode count (-N).\n"),
2618 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2619 fs_param.s_inodes_count,
2620 (unsigned long long) ext2fs_blocks_count(&fs_param));
2625 * Calculate number of blocks to reserve
2627 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2628 ext2fs_blocks_count(&fs_param) / 100.0);
2630 if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2631 if (num_backups >= 1)
2632 fs_param.s_backup_bgs[0] = 1;
2633 if (num_backups >= 2)
2634 fs_param.s_backup_bgs[1] = ~0;
2641 static int should_do_undo(const char *name)
2646 struct ext2_super_block super;
2647 io_manager manager = unix_io_manager;
2648 int csum_flag, force_undo;
2650 csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2651 ext2fs_has_feature_gdt_csum(&fs_param);
2652 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2653 if (!force_undo && (!csum_flag || !lazy_itable_init))
2656 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
2659 * We don't handle error cases instead we
2660 * declare that the file system doesn't exist
2661 * and let the rest of mke2fs take care of
2668 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2669 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2675 #if defined(WORDS_BIGENDIAN)
2676 s_magic = ext2fs_swab16(super.s_magic);
2678 s_magic = super.s_magic;
2681 if (s_magic == EXT2_SUPER_MAGIC)
2685 io_channel_close(channel);
2692 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2694 errcode_t retval = ENOMEM;
2695 char *tdb_dir = NULL, *tdb_file = NULL;
2696 char *dev_name, *tmp_name;
2697 int free_tdb_dir = 0;
2699 /* (re)open a specific undo file */
2700 if (undo_file && undo_file[0] != 0) {
2701 retval = set_undo_io_backing_manager(*io_ptr);
2704 *io_ptr = undo_io_manager;
2705 retval = set_undo_io_backup_file(undo_file);
2708 printf(_("Overwriting existing filesystem; this can be undone "
2709 "using the command:\n"
2710 " e2undo %s %s\n\n"), undo_file, name);
2715 * Configuration via a conf file would be
2718 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2720 profile_get_string(profile, "defaults",
2721 "undo_dir", 0, "/var/lib/e2fsprogs",
2726 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2727 access(tdb_dir, W_OK)) {
2733 tmp_name = strdup(name);
2736 dev_name = basename(tmp_name);
2737 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2742 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2745 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2747 com_err(program_name, retval,
2748 _("while trying to delete %s"), tdb_file);
2752 retval = set_undo_io_backing_manager(*io_ptr);
2755 *io_ptr = undo_io_manager;
2756 retval = set_undo_io_backup_file(tdb_file);
2759 printf(_("Overwriting existing filesystem; this can be undone "
2760 "using the command:\n"
2761 " e2undo %s %s\n\n"), tdb_file, name);
2773 com_err(program_name, retval, "%s",
2774 _("while trying to setup undo file\n"));
2778 static int mke2fs_discard_device(ext2_filsys fs)
2780 struct ext2fs_numeric_progress_struct progress;
2781 blk64_t blocks = ext2fs_blocks_count(fs->super);
2782 blk64_t count = DISCARD_STEP_MB;
2787 * Let's try if discard really works on the device, so
2788 * we do not print numeric progress resulting in failure
2791 retval = io_channel_discard(fs->io, 0, fs->blocksize);
2794 cur = fs->blocksize;
2796 count *= (1024 * 1024);
2797 count /= fs->blocksize;
2799 ext2fs_numeric_progress_init(fs, &progress,
2800 _("Discarding device blocks: "),
2802 while (cur < blocks) {
2803 ext2fs_numeric_progress_update(fs, &progress, cur);
2805 if (cur + count > blocks)
2806 count = blocks - cur;
2808 retval = io_channel_discard(fs->io, cur, count);
2815 ext2fs_numeric_progress_close(fs, &progress,
2818 printf("%s\n",error_message(retval));
2820 ext2fs_numeric_progress_close(fs, &progress,
2826 static void fix_cluster_bg_counts(ext2_filsys fs)
2828 blk64_t block, num_blocks, last_block, next;
2829 blk64_t tot_free = 0;
2834 num_blocks = ext2fs_blocks_count(fs->super);
2835 last_block = ext2fs_group_last_block2(fs, group);
2836 block = fs->super->s_first_data_block;
2837 while (block < num_blocks) {
2838 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2839 block, last_block, &next);
2843 block = last_block + 1;
2847 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2848 block, last_block, &next);
2850 next = last_block + 1;
2851 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2852 tot_free += next - block;
2855 if (block > last_block) {
2857 ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2858 ext2fs_group_desc_csum_set(fs, group);
2861 last_block = ext2fs_group_last_block2(fs, group);
2864 ext2fs_free_blocks_count_set(fs->super, tot_free);
2867 static int create_quota_inodes(ext2_filsys fs)
2872 retval = quota_init_context(&qctx, fs, quotatype_bits);
2874 com_err(program_name, retval,
2875 _("while initializing quota context"));
2878 quota_compute_usage(qctx);
2879 retval = quota_write_inode(qctx, quotatype_bits);
2881 com_err(program_name, retval,
2882 _("while writing quota inodes"));
2885 quota_release_context(&qctx);
2890 static errcode_t set_error_behavior(ext2_filsys fs)
2893 short errors = fs->super->s_errors;
2895 arg = get_string_from_profile(fs_types, "errors", NULL);
2899 if (strcmp(arg, "continue") == 0)
2900 errors = EXT2_ERRORS_CONTINUE;
2901 else if (strcmp(arg, "remount-ro") == 0)
2902 errors = EXT2_ERRORS_RO;
2903 else if (strcmp(arg, "panic") == 0)
2904 errors = EXT2_ERRORS_PANIC;
2906 com_err(program_name, 0,
2907 _("bad error behavior in profile - %s"),
2910 return EXT2_ET_INVALID_ARGUMENT;
2915 if (errors_behavior)
2916 errors = errors_behavior;
2918 fs->super->s_errors = errors;
2922 int main (int argc, char *argv[])
2924 errcode_t retval = 0;
2926 badblocks_list bb_list = 0;
2927 unsigned int journal_blocks = 0;
2928 unsigned int i, checkinterval;
2934 char opt_string[40];
2936 int itable_zeroed = 0;
2939 setlocale(LC_MESSAGES, "");
2940 setlocale(LC_CTYPE, "");
2941 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2942 textdomain(NLS_CAT_NAME);
2943 set_com_err_gettext(gettext);
2947 #ifdef CONFIG_TESTIO_DEBUG
2948 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2949 io_ptr = test_io_manager;
2950 test_io_backing_manager = unix_io_manager;
2953 io_ptr = unix_io_manager;
2955 if (undo_file != NULL || should_do_undo(device_name)) {
2956 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2962 * Initialize the superblock....
2964 flags = EXT2_FLAG_EXCLUSIVE;
2966 flags |= EXT2_FLAG_DIRECT_IO;
2967 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2970 flags |= EXT2_FLAG_64BITS;
2972 * By default, we print how many inode tables or block groups
2973 * or whatever we've written so far. The quiet flag disables
2974 * this, along with a lot of other output.
2977 flags |= EXT2_FLAG_PRINT_PROGRESS;
2978 if (android_sparse_file) {
2979 char *android_sparse_params = malloc(strlen(device_name) + 48);
2981 if (!android_sparse_params) {
2982 com_err(program_name, ENOMEM, "%s",
2983 _("in malloc for android_sparse_params"));
2986 sprintf(android_sparse_params, "(%s):%u:%u",
2987 device_name, fs_param.s_blocks_count,
2988 1024 << fs_param.s_log_block_size);
2989 retval = ext2fs_initialize(android_sparse_params, flags,
2990 &fs_param, sparse_io_manager, &fs);
2991 free(android_sparse_params);
2993 retval = ext2fs_initialize(device_name, flags, &fs_param,
2996 com_err(device_name, retval, "%s",
2997 _("while setting up superblock"));
3000 fs->progress_ops = &ext2fs_numeric_progress_ops;
3002 /* Set the error behavior */
3003 retval = set_error_behavior(fs);
3007 /* Check the user's mkfs options for metadata checksumming */
3009 !ext2fs_has_feature_journal_dev(fs->super) &&
3010 ext2fs_has_feature_metadata_csum(fs->super)) {
3011 if (!ext2fs_has_feature_extents(fs->super))
3013 _("Extents are not enabled. The file extent "
3014 "tree can be checksummed, whereas block maps "
3015 "cannot. Not enabling extents reduces the "
3016 "coverage of metadata checksumming. "
3017 "Pass -O extents to rectify.\n"));
3018 if (!ext2fs_has_feature_64bit(fs->super))
3020 _("64-bit filesystem support is not enabled. "
3021 "The larger fields afforded by this feature "
3022 "enable full-strength checksumming. "
3023 "Pass -O 64bit to rectify.\n"));
3026 if (ext2fs_has_feature_csum_seed(fs->super) &&
3027 !ext2fs_has_feature_metadata_csum(fs->super)) {
3028 printf("%s", _("The metadata_csum_seed feature "
3029 "requires the metadata_csum feature.\n"));
3033 /* Calculate journal blocks */
3034 if (!journal_device && ((journal_size) ||
3035 ext2fs_has_feature_journal(&fs_param)))
3036 journal_blocks = figure_journal_size(journal_size, fs);
3038 sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3039 32768 : fs->blocksize * 8);
3040 io_channel_set_options(fs->io, opt_string);
3042 sprintf(opt_string, "offset=%llu", offset);
3043 io_channel_set_options(fs->io, opt_string);
3046 /* Can't undo discard ... */
3047 if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3048 retval = mke2fs_discard_device(fs);
3049 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3052 _("Discard succeeded and will return "
3053 "0s - skipping inode table wipe\n"));
3054 lazy_itable_init = 1;
3060 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3061 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3063 if (ext2fs_has_feature_flex_bg(&fs_param) ||
3064 ext2fs_has_feature_huge_file(&fs_param) ||
3065 ext2fs_has_feature_gdt_csum(&fs_param) ||
3066 ext2fs_has_feature_dir_nlink(&fs_param) ||
3067 ext2fs_has_feature_metadata_csum(&fs_param) ||
3068 ext2fs_has_feature_extra_isize(&fs_param))
3069 fs->super->s_kbytes_written = 1;
3072 * Wipe out the old on-disk superblock
3075 zap_sector(fs, 2, 6);
3078 * Parse or generate a UUID for the filesystem
3081 if ((strcasecmp(fs_uuid, "null") == 0) ||
3082 (strcasecmp(fs_uuid, "clear") == 0)) {
3083 uuid_clear(fs->super->s_uuid);
3084 } else if (strcasecmp(fs_uuid, "time") == 0) {
3085 uuid_generate_time(fs->super->s_uuid);
3086 } else if (strcasecmp(fs_uuid, "random") == 0) {
3087 uuid_generate(fs->super->s_uuid);
3088 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3089 com_err(device_name, 0, "could not parse UUID: %s\n",
3094 uuid_generate(fs->super->s_uuid);
3096 if (ext2fs_has_feature_csum_seed(fs->super))
3097 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3098 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3100 ext2fs_init_csum_seed(fs);
3103 * Initialize the directory index variables
3105 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3107 hash_alg = e2p_string2hash(hash_alg_str);
3109 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3112 if (memcmp(fs_param.s_hash_seed, zero_buf,
3113 sizeof(fs_param.s_hash_seed)) != 0) {
3114 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3115 sizeof(fs->super->s_hash_seed));
3117 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3120 * Periodic checks can be enabled/disabled via config file.
3121 * Note we override the kernel include file's idea of what the default
3122 * check interval (never) should be. It's a good idea to check at
3123 * least *occasionally*, specially since servers will never rarely get
3124 * to reboot, since Linux is so robust these days. :-)
3126 * 180 days (six months) seems like a good value.
3128 #ifdef EXT2_DFL_CHECKINTERVAL
3129 #undef EXT2_DFL_CHECKINTERVAL
3131 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3133 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3134 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3135 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3137 * Add "jitter" to the superblock's check interval so that we
3138 * don't check all the filesystems at the same time. We use a
3139 * kludgy hack of using the UUID to derive a random jitter value
3141 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3142 val += fs->super->s_uuid[i];
3143 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3145 fs->super->s_max_mnt_count = -1;
3148 * Override the creator OS, if applicable
3150 if (creator_os && !set_os(fs->super, creator_os)) {
3151 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3156 * For the Hurd, we will turn off filetype since it doesn't
3159 if (fs->super->s_creator_os == EXT2_OS_HURD)
3160 ext2fs_clear_feature_filetype(fs->super);
3163 * Set the volume label...
3166 memset(fs->super->s_volume_name, 0,
3167 sizeof(fs->super->s_volume_name));
3168 strncpy((char *) fs->super->s_volume_name, volume_label,
3169 sizeof(fs->super->s_volume_name));
3173 * Set the last mount directory
3176 memset(fs->super->s_last_mounted, 0,
3177 sizeof(fs->super->s_last_mounted));
3178 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3179 sizeof(fs->super->s_last_mounted));
3182 /* Set current default encryption algorithms for data and
3183 * filename encryption */
3184 if (ext2fs_has_feature_encrypt(fs->super)) {
3185 fs->super->s_encrypt_algos[0] =
3186 EXT4_ENCRYPTION_MODE_AES_256_XTS;
3187 fs->super->s_encrypt_algos[1] =
3188 EXT4_ENCRYPTION_MODE_AES_256_CTS;
3191 if (ext2fs_has_feature_metadata_csum(fs->super))
3192 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3194 if (!quiet || noaction)
3200 if (ext2fs_has_feature_journal_dev(fs->super)) {
3201 create_journal_dev(fs);
3203 exit(ext2fs_close_free(&fs) ? 1 : 0);
3206 if (bad_blocks_filename)
3207 read_bb_file(fs, &bb_list, bad_blocks_filename);
3209 test_disk(fs, &bb_list);
3210 handle_bad_blocks(fs, bb_list);
3212 fs->stride = fs_stride = fs->super->s_raid_stride;
3214 printf("%s", _("Allocating group tables: "));
3215 if (ext2fs_has_feature_flex_bg(fs->super) &&
3217 retval = packed_allocate_tables(fs);
3219 retval = ext2fs_allocate_tables(fs);
3221 com_err(program_name, retval, "%s",
3222 _("while trying to allocate filesystem tables"));
3226 printf("%s", _("done \n"));
3228 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3230 com_err(program_name, retval, "%s",
3231 _("\n\twhile converting subcluster bitmap"));
3236 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3237 printf(_("%s may be further corrupted by superblock rewrite\n"),
3240 proceed_question(proceed_delay);
3241 fs->super->s_state |= EXT2_ERROR_FS;
3242 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3244 * The command "mke2fs -S" is used to recover
3245 * corrupted file systems, so do not mark any of the
3246 * inodes as unused; we want e2fsck to consider all
3247 * inodes as potentially containing recoverable data.
3249 if (ext2fs_has_group_desc_csum(fs)) {
3250 for (i = 0; i < fs->group_desc_count; i++)
3251 ext2fs_bg_itable_unused_set(fs, i, 0);
3254 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3255 blk64_t rsv = 65536 / fs->blocksize;
3256 blk64_t blocks = ext2fs_blocks_count(fs->super);
3260 #ifdef ZAP_BOOTBLOCK
3261 zap_sector(fs, 0, 2);
3265 * Wipe out any old MD RAID (or other) metadata at the end
3266 * of the device. This will also verify that the device is
3267 * as large as we think. Be careful with very small devices.
3269 start = (blocks & ~(rsv - 1));
3273 retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3277 com_err(program_name, retval,
3278 _("while zeroing block %llu at end of filesystem"),
3281 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3282 create_root_dir(fs);
3283 create_lost_and_found(fs);
3285 create_bad_block_inode(fs, bb_list);
3286 if (ext2fs_has_feature_resize_inode(fs->super)) {
3287 retval = ext2fs_create_resize_inode(fs);
3289 com_err("ext2fs_create_resize_inode", retval,
3291 _("while reserving blocks for online resize"));
3297 if (journal_device) {
3300 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3302 proceed_question(proceed_delay);
3303 check_mount(journal_device, force, _("journal"));
3305 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3306 EXT2_FLAG_JOURNAL_DEV_OK, 0,
3307 fs->blocksize, unix_io_manager, &jfs);
3309 com_err(program_name, retval,
3310 _("while trying to open journal device %s\n"),
3315 printf(_("Adding journal to device %s: "),
3319 retval = ext2fs_add_journal_device(fs, jfs);
3321 com_err (program_name, retval,
3322 _("\n\twhile trying to add journal to device %s"),
3327 printf("%s", _("done\n"));
3328 ext2fs_close_free(&jfs);
3329 free(journal_device);
3330 } else if ((journal_size) ||
3331 ext2fs_has_feature_journal(&fs_param)) {
3333 printf("%s", _("Skipping journal creation in super-only mode\n"));
3334 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3338 if (!journal_blocks) {
3339 ext2fs_clear_feature_journal(fs->super);
3343 printf(_("Creating journal (%u blocks): "),
3347 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3351 com_err(program_name, retval, "%s",
3352 _("\n\twhile trying to create journal"));
3356 printf("%s", _("done\n"));
3360 ext2fs_has_feature_mmp(fs->super)) {
3361 retval = ext2fs_mmp_init(fs);
3363 fprintf(stderr, "%s",
3364 _("\nError while enabling multiple "
3365 "mount protection feature."));
3369 printf(_("Multiple mount protection is enabled "
3370 "with update interval %d seconds.\n"),
3371 fs->super->s_mmp_update_interval);
3374 if (ext2fs_has_feature_bigalloc(&fs_param))
3375 fix_cluster_bg_counts(fs);
3376 if (ext2fs_has_feature_quota(&fs_param))
3377 create_quota_inodes(fs);
3379 retval = mk_hugefiles(fs, device_name);
3381 com_err(program_name, retval, "while creating huge files");
3382 /* Copy files from the specified directory */
3385 printf("%s", _("Copying files into the device: "));
3387 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3390 com_err(program_name, retval, "%s",
3391 _("while populating file system"));
3394 printf("%s", _("done\n"));
3398 printf("%s", _("Writing superblocks and "
3399 "filesystem accounting information: "));
3400 checkinterval = fs->super->s_checkinterval;
3401 max_mnt_count = fs->super->s_max_mnt_count;
3402 retval = ext2fs_close_free(&fs);
3404 com_err(program_name, retval, "%s",
3405 _("while writing out and closing file system"));
3407 } else if (!quiet) {
3408 printf("%s", _("done\n\n"));
3409 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3410 print_check_message(max_mnt_count, checkinterval);
3413 remove_error_table(&et_ext2_error_table);
3414 remove_error_table(&et_prof_error_table);
3415 profile_release(profile);
3416 for (i=0; fs_types[i]; i++)