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 /* for inclusion of PATH_MAX */
28 #include <sys/utsname.h>
29 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
46 #include <sys/ioctl.h>
49 #include <blkid/blkid.h>
51 #include "ext2fs/ext2_fs.h"
52 #include "ext2fs/ext2fsP.h"
53 #include "uuid/uuid.h"
55 #include "support/nls-enable.h"
56 #include "support/plausible.h"
57 #include "support/profile.h"
58 #include "support/prof_err.h"
59 #include "../version.h"
60 #include "support/quotaio.h"
62 #include "create_inode.h"
64 #define STRIDE_LENGTH 8
66 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
72 #define DISCARD_STEP_MB (2048)
74 extern int isatty(int);
75 extern FILE *fpopen(const char *cmd, const char *mode);
77 const char * program_name = "mke2fs";
78 static const char * device_name /* = NULL */;
80 /* Command line options */
84 static int super_only;
85 static int discard = 1; /* attempt to discard device before fs creation */
89 static int num_backups = 2; /* number of backup bg's for sparse_super2 */
90 static uid_t root_uid;
91 static gid_t root_gid;
94 static int lazy_itable_init;
95 static int packed_meta_blocks;
96 static char *bad_blocks_filename = NULL;
97 static __u32 fs_stride;
98 /* Initialize usr/grp quotas by default */
99 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
101 static blk64_t journal_location = ~0LL;
102 static int proceed_delay = -1;
103 static blk64_t dev_size;
105 static struct ext2_super_block fs_param;
106 static char *fs_uuid = NULL;
107 static char *creator_os;
108 static char *volume_label;
109 static char *mount_dir;
110 char *journal_device;
111 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
113 const char *src_root_dir; /* Copy files from the specified directory */
114 static char *undo_file;
116 static profile_t profile;
118 static int sys_page_size = 4096;
120 static int errors_behavior = 0;
122 static void usage(void)
124 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
125 "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
126 "[-J journal-options]\n"
127 "\t[-G flex-group-size] [-N number-of-inodes] "
128 "[-d root-directory]\n"
129 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
130 "\t[-g blocks-per-group] [-L volume-label] "
131 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
132 "[-r fs-revision] [-E extended-option[,...]]\n"
133 "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
135 "\t[-jnqvDFSV] device [blocks-count]\n"),
140 static int int_log2(unsigned long long arg)
152 int int_log10(unsigned long long arg)
162 static int parse_version_number(const char *s)
164 int major, minor, rev;
170 major = strtol(cp, &endptr, 10);
171 if (cp == endptr || *endptr != '.')
174 minor = strtol(cp, &endptr, 10);
175 if (cp == endptr || *endptr != '.')
178 rev = strtol(cp, &endptr, 10);
181 return KERNEL_VERSION(major, minor, rev);
184 static int is_before_linux_ver(unsigned int major, unsigned int minor,
188 static int linux_version_code = -1;
194 if (linux_version_code < 0)
195 linux_version_code = parse_version_number(ut.release);
196 if (linux_version_code == 0)
199 return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
202 static int is_before_linux_ver(unsigned int major, unsigned int minor,
210 * Helper function for read_bb_file and test_disk
212 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
214 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
219 * Reads the bad blocks list from a file
221 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
222 const char *bad_blocks_file)
227 f = fopen(bad_blocks_file, "r");
229 com_err("read_bad_blocks_file", errno,
230 _("while trying to open %s"), bad_blocks_file);
233 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
236 com_err("ext2fs_read_bb_FILE", retval, "%s",
237 _("while reading in list of bad blocks from file"));
243 * Runs the badblocks program to test the disk
245 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
251 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
252 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
253 fs->device_name, ext2fs_blocks_count(fs->super)-1);
255 printf(_("Running command: %s\n"), buf);
258 com_err("popen", errno,
259 _("while trying to run '%s'"), buf);
262 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
265 com_err("ext2fs_read_bb_FILE", retval, "%s",
266 _("while processing list of bad blocks from program"));
271 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
275 unsigned must_be_good;
277 badblocks_iterate bb_iter;
287 * The primary superblock and group descriptors *must* be
288 * good; if not, abort.
290 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
291 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
292 if (ext2fs_badblocks_list_test(bb_list, i)) {
293 fprintf(stderr, _("Block %d in primary "
294 "superblock/group descriptor area bad.\n"), i);
295 fprintf(stderr, _("Blocks %u through %u must be good "
296 "in order to build a filesystem.\n"),
297 fs->super->s_first_data_block, must_be_good);
298 fputs(_("Aborting....\n"), stderr);
304 * See if any of the bad blocks are showing up in the backup
305 * superblocks and/or group descriptors. If so, issue a
306 * warning and adjust the block counts appropriately.
308 group_block = fs->super->s_first_data_block +
309 fs->super->s_blocks_per_group;
311 for (i = 1; i < fs->group_desc_count; i++) {
313 for (j=0; j < fs->desc_blocks+1; j++) {
314 if (ext2fs_badblocks_list_test(bb_list,
318 _("Warning: the backup superblock/group descriptors at block %u contain\n"
322 group = ext2fs_group_of_blk2(fs, group_block+j);
323 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
324 ext2fs_group_desc_csum_set(fs, group);
325 ext2fs_free_blocks_count_add(fs->super, 1);
328 group_block += fs->super->s_blocks_per_group;
332 * Mark all the bad blocks as used...
334 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
336 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
337 _("while marking bad blocks as used"));
340 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
341 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
342 ext2fs_badblocks_list_iterate_end(bb_iter);
345 static void write_reserved_inodes(ext2_filsys fs)
349 struct ext2_inode *inode;
351 retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
353 com_err("inode_init", retval, _("while allocating memory"));
357 for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
358 ext2fs_write_inode_full(fs, ino, inode,
359 EXT2_INODE_SIZE(fs->super));
361 ext2fs_free_mem(&inode);
364 static errcode_t packed_allocate_tables(ext2_filsys fs)
370 for (i = 0; i < fs->group_desc_count; i++) {
371 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
374 ext2fs_block_alloc_stats2(fs, goal, +1);
375 ext2fs_block_bitmap_loc_set(fs, i, goal);
377 for (i = 0; i < fs->group_desc_count; i++) {
378 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
381 ext2fs_block_alloc_stats2(fs, goal, +1);
382 ext2fs_inode_bitmap_loc_set(fs, i, goal);
384 for (i = 0; i < fs->group_desc_count; i++) {
385 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
386 retval = ext2fs_get_free_blocks2(fs, goal, end,
387 fs->inode_blocks_per_group,
388 fs->block_map, &goal);
391 ext2fs_block_alloc_stats_range(fs, goal,
392 fs->inode_blocks_per_group, +1);
393 ext2fs_inode_table_loc_set(fs, i, goal);
394 ext2fs_group_desc_csum_set(fs, i);
399 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
405 struct ext2fs_numeric_progress_struct progress;
407 ext2fs_numeric_progress_init(fs, &progress,
408 _("Writing inode tables: "),
409 fs->group_desc_count);
411 for (i = 0; i < fs->group_desc_count; i++) {
412 ext2fs_numeric_progress_update(fs, &progress, i);
414 blk = ext2fs_inode_table_loc(fs, i);
415 num = fs->inode_blocks_per_group;
418 num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
419 ext2fs_bg_itable_unused(fs, i)) *
420 EXT2_INODE_SIZE(fs->super),
421 EXT2_BLOCK_SIZE(fs->super));
422 if (!lazy_flag || itable_zeroed) {
423 /* The kernel doesn't need to zero the itable blocks */
424 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
425 ext2fs_group_desc_csum_set(fs, i);
427 if (!itable_zeroed) {
428 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
430 fprintf(stderr, _("\nCould not write %d "
431 "blocks in inode table starting at %llu: %s\n"),
432 num, blk, error_message(retval));
437 if (sync_kludge == 1)
439 else if ((i % sync_kludge) == 0)
443 ext2fs_numeric_progress_close(fs, &progress,
446 /* Reserved inodes must always have correct checksums */
447 if (ext2fs_has_feature_metadata_csum(fs->super))
448 write_reserved_inodes(fs);
451 static void create_root_dir(ext2_filsys fs)
454 struct ext2_inode inode;
456 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
458 com_err("ext2fs_mkdir", retval, "%s",
459 _("while creating root dir"));
462 if (root_uid != 0 || root_gid != 0) {
463 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
465 com_err("ext2fs_read_inode", retval, "%s",
466 _("while reading root inode"));
470 inode.i_uid = root_uid;
471 ext2fs_set_i_uid_high(inode, root_uid >> 16);
472 inode.i_gid = root_gid;
473 ext2fs_set_i_gid_high(inode, root_gid >> 16);
475 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
477 com_err("ext2fs_write_inode", retval, "%s",
478 _("while setting root inode ownership"));
484 static void create_lost_and_found(ext2_filsys fs)
486 unsigned int lpf_size = 0;
489 const char *name = "lost+found";
493 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
495 com_err("ext2fs_mkdir", retval, "%s",
496 _("while creating /lost+found"));
500 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
502 com_err("ext2_lookup", retval, "%s",
503 _("while looking up /lost+found"));
507 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
508 /* Ensure that lost+found is at least 2 blocks, so we always
509 * test large empty blocks for big-block filesystems. */
510 if ((lpf_size += fs->blocksize) >= 16*1024 &&
511 lpf_size >= 2 * fs->blocksize)
513 retval = ext2fs_expand_dir(fs, ino);
515 com_err("ext2fs_expand_dir", retval, "%s",
516 _("while expanding /lost+found"));
522 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
526 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
527 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
528 retval = ext2fs_update_bb_inode(fs, bb_list);
530 com_err("ext2fs_update_bb_inode", retval, "%s",
531 _("while setting bad block inode"));
537 static void reserve_inodes(ext2_filsys fs)
541 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
542 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
543 ext2fs_mark_ib_dirty(fs);
546 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
547 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
548 #define BSD_LABEL_OFFSET 64
550 static void zap_sector(ext2_filsys fs, int sect, int nsect)
556 buf = malloc(512*nsect);
558 printf(_("Out of memory erasing sectors %d-%d\n"),
559 sect, sect + nsect - 1);
564 /* Check for a BSD disklabel, and don't erase it if so */
565 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
568 _("Warning: could not read block 0: %s\n"),
569 error_message(retval));
571 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
572 if ((*magic == BSD_DISKMAGIC) ||
573 (*magic == BSD_MAGICDISK))
578 memset(buf, 0, 512*nsect);
579 io_channel_set_blksize(fs->io, 512);
580 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
581 io_channel_set_blksize(fs->io, fs->blocksize);
584 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
585 sect, error_message(retval));
588 static void create_journal_dev(ext2_filsys fs)
590 struct ext2fs_numeric_progress_struct progress;
593 blk64_t blk, err_blk;
594 int c, count, err_count;
596 retval = ext2fs_create_journal_superblock(fs,
597 ext2fs_blocks_count(fs->super), 0, &buf);
599 com_err("create_journal_dev", retval, "%s",
600 _("while initializing journal superblock"));
604 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
605 goto write_superblock;
607 ext2fs_numeric_progress_init(fs, &progress,
608 _("Zeroing journal device: "),
609 ext2fs_blocks_count(fs->super));
611 count = ext2fs_blocks_count(fs->super);
617 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
619 com_err("create_journal_dev", retval,
620 _("while zeroing journal device "
621 "(block %llu, count %d)"),
627 ext2fs_numeric_progress_update(fs, &progress, blk);
630 ext2fs_numeric_progress_close(fs, &progress, NULL);
632 retval = io_channel_write_blk64(fs->io,
633 fs->super->s_first_data_block+1,
636 com_err("create_journal_dev", retval, "%s",
637 _("while writing journal superblock"));
642 static void show_stats(ext2_filsys fs)
644 struct ext2_super_block *s = fs->super;
652 printf(_("Creating filesystem with %llu %dk blocks and "
654 ext2fs_blocks_count(s), fs->blocksize >> 10,
659 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
660 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
661 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
663 memset(buf, 0, sizeof(buf));
664 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
665 printf(_("Filesystem label=%s\n"), buf);
666 os = e2p_os2string(fs->super->s_creator_os);
668 printf(_("OS type: %s\n"), os);
670 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
671 s->s_log_block_size);
672 if (ext2fs_has_feature_bigalloc(fs->super))
673 printf(_("Cluster size=%u (log=%u)\n"),
674 fs->blocksize << fs->cluster_ratio_bits,
675 s->s_log_cluster_size);
677 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
678 s->s_log_cluster_size);
679 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
680 s->s_raid_stride, s->s_raid_stripe_width);
681 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
682 ext2fs_blocks_count(s));
683 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
684 ext2fs_r_blocks_count(s),
685 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
686 printf(_("First data block=%u\n"), s->s_first_data_block);
687 if (root_uid != 0 || root_gid != 0)
688 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
689 if (s->s_reserved_gdt_blocks)
690 printf(_("Maximum filesystem blocks=%lu\n"),
691 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
692 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
693 if (fs->group_desc_count > 1)
694 printf(_("%u block groups\n"), fs->group_desc_count);
696 printf(_("%u block group\n"), fs->group_desc_count);
697 if (ext2fs_has_feature_bigalloc(fs->super))
698 printf(_("%u blocks per group, %u clusters per group\n"),
699 s->s_blocks_per_group, s->s_clusters_per_group);
701 printf(_("%u blocks per group, %u fragments per group\n"),
702 s->s_blocks_per_group, s->s_clusters_per_group);
703 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
706 if (fs->group_desc_count == 1) {
711 if (!e2p_is_null_uuid(s->s_uuid))
712 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
713 printf("%s", _("Superblock backups stored on blocks: "));
714 group_block = s->s_first_data_block;
716 for (i = 1; i < fs->group_desc_count; i++) {
717 group_block += s->s_blocks_per_group;
718 if (!ext2fs_bg_has_super(fs, i))
722 need = int_log10(group_block) + 2;
723 if (need > col_left) {
728 printf("%llu", group_block);
734 * Returns true if making a file system for the Hurd, else 0
736 static int for_hurd(const char *os)
746 return (atoi(os) == EXT2_OS_HURD);
747 return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
751 * Set the S_CREATOR_OS field. Return true if OS is known,
754 static int set_os(struct ext2_super_block *sb, char *os)
757 sb->s_creator_os = atoi (os);
758 else if (strcasecmp(os, "linux") == 0)
759 sb->s_creator_os = EXT2_OS_LINUX;
760 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
761 sb->s_creator_os = EXT2_OS_HURD;
762 else if (strcasecmp(os, "freebsd") == 0)
763 sb->s_creator_os = EXT2_OS_FREEBSD;
764 else if (strcasecmp(os, "lites") == 0)
765 sb->s_creator_os = EXT2_OS_LITES;
771 #define PATH_SET "PATH=/sbin"
773 static void parse_extended_opts(struct ext2_super_block *param,
776 char *buf, *token, *next, *p, *arg, *badopt = 0;
784 fprintf(stderr, "%s",
785 _("Couldn't allocate memory to parse options!\n"));
789 for (token = buf; token && *token; token = next) {
790 p = strchr(token, ',');
796 arg = strchr(token, '=');
801 if (strcmp(token, "desc-size") == 0 ||
802 strcmp(token, "desc_size") == 0) {
805 if (!ext2fs_has_feature_64bit(&fs_param)) {
807 _("%s requires '-O 64bit'\n"), token);
811 if (param->s_reserved_gdt_blocks != 0) {
813 _("'%s' must be before 'resize=%u'\n"),
814 token, param->s_reserved_gdt_blocks);
823 desc_size = strtoul(arg, &p, 0);
824 if (*p || (desc_size & (desc_size - 1))) {
826 _("Invalid desc_size: '%s'\n"), arg);
830 param->s_desc_size = desc_size;
831 } else if (strcmp(token, "offset") == 0) {
837 offset = strtoull(arg, &p, 0);
839 fprintf(stderr, _("Invalid offset: %s\n"),
844 } else if (strcmp(token, "mmp_update_interval") == 0) {
850 param->s_mmp_update_interval = strtoul(arg, &p, 0);
853 _("Invalid mmp_update_interval: %s\n"),
858 } else if (strcmp(token, "num_backup_sb") == 0) {
864 num_backups = strtoul(arg, &p, 0);
865 if (*p || num_backups > 2) {
867 _("Invalid # of backup "
868 "superblocks: %s\n"),
873 } else if (strcmp(token, "packed_meta_blocks") == 0) {
875 packed_meta_blocks = strtoul(arg, &p, 0);
877 packed_meta_blocks = 1;
878 if (packed_meta_blocks)
879 journal_location = 0;
880 } else if (strcmp(token, "stride") == 0) {
886 param->s_raid_stride = strtoul(arg, &p, 0);
889 _("Invalid stride parameter: %s\n"),
894 } else if (strcmp(token, "stripe-width") == 0 ||
895 strcmp(token, "stripe_width") == 0) {
901 param->s_raid_stripe_width = strtoul(arg, &p, 0);
904 _("Invalid stripe-width parameter: %s\n"),
909 } else if (!strcmp(token, "resize")) {
911 unsigned long bpg, rsv_groups;
912 unsigned long group_desc_count, desc_blocks;
913 unsigned int gdpb, blocksize;
922 resize = parse_num_blocks2(arg,
923 param->s_log_block_size);
927 _("Invalid resize parameter: %s\n"),
932 if (resize <= ext2fs_blocks_count(param)) {
933 fprintf(stderr, "%s",
934 _("The resize maximum must be greater "
935 "than the filesystem size.\n"));
940 blocksize = EXT2_BLOCK_SIZE(param);
941 bpg = param->s_blocks_per_group;
944 gdpb = EXT2_DESC_PER_BLOCK(param);
945 group_desc_count = (__u32) ext2fs_div64_ceil(
946 ext2fs_blocks_count(param), bpg);
947 desc_blocks = (group_desc_count +
949 rsv_groups = ext2fs_div64_ceil(resize, bpg);
950 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
952 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
953 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
956 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
957 fprintf(stderr, "%s",
958 _("On-line resizing not supported with revision 0 filesystems\n"));
962 ext2fs_set_feature_resize_inode(param);
964 param->s_reserved_gdt_blocks = rsv_gdb;
966 } else if (!strcmp(token, "test_fs")) {
967 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
968 } else if (!strcmp(token, "lazy_itable_init")) {
970 lazy_itable_init = strtoul(arg, &p, 0);
972 lazy_itable_init = 1;
973 } else if (!strcmp(token, "lazy_journal_init")) {
975 journal_flags |= strtoul(arg, &p, 0) ?
976 EXT2_MKJOURNAL_LAZYINIT : 0;
978 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
979 } else if (!strcmp(token, "root_owner")) {
981 root_uid = strtoul(arg, &p, 0);
984 _("Invalid root_owner: '%s'\n"),
990 root_gid = strtoul(p, &p, 0);
993 _("Invalid root_owner: '%s'\n"),
1000 root_gid = getgid();
1002 } else if (!strcmp(token, "discard")) {
1004 } else if (!strcmp(token, "nodiscard")) {
1006 } else if (!strcmp(token, "quotatype")) {
1007 char *errtok = NULL;
1015 ret = parse_quota_types(arg, "atype_bits, &errtok);
1019 "Failed to parse quota type at %s", errtok);
1022 com_err(program_name, ret,
1023 "while parsing quota type");
1034 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1035 "Extended options are separated by commas, "
1036 "and may take an argument which\n"
1037 "\tis set off by an equals ('=') sign.\n\n"
1038 "Valid extended options are:\n"
1039 "\tmmp_update_interval=<interval>\n"
1040 "\tnum_backup_sb=<0|1|2>\n"
1041 "\tstride=<RAID per-disk data chunk in blocks>\n"
1042 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1043 "\toffset=<offset to create the file system>\n"
1044 "\tresize=<resize maximum size in blocks>\n"
1045 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1046 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1047 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1048 "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1052 "\tquotatype=<quota type(s) to be enabled>\n\n"),
1053 badopt ? badopt : "");
1057 if (param->s_raid_stride &&
1058 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1059 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1060 "multiple of stride %u.\n\n"),
1061 param->s_raid_stripe_width, param->s_raid_stride);
1066 static __u32 ok_features[3] = {
1068 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1069 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1070 EXT2_FEATURE_COMPAT_DIR_INDEX |
1071 EXT2_FEATURE_COMPAT_EXT_ATTR |
1072 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1074 EXT2_FEATURE_INCOMPAT_FILETYPE|
1075 EXT3_FEATURE_INCOMPAT_EXTENTS|
1076 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1077 EXT2_FEATURE_INCOMPAT_META_BG|
1078 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1079 EXT4_FEATURE_INCOMPAT_MMP |
1080 EXT4_FEATURE_INCOMPAT_64BIT|
1081 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1082 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1083 EXT4_FEATURE_INCOMPAT_CSUM_SEED,
1085 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1086 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1087 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1088 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1089 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1090 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1091 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1092 EXT4_FEATURE_RO_COMPAT_QUOTA|
1093 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1094 EXT4_FEATURE_RO_COMPAT_PROJECT
1098 static void syntax_err_report(const char *filename, long err, int line_num)
1101 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1102 filename, line_num, error_message(err));
1106 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1108 static void edit_feature(const char *str, __u32 *compat_array)
1113 if (e2p_edit_feature(str, compat_array, ok_features)) {
1114 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1120 static void edit_mntopts(const char *str, __u32 *mntopts)
1125 if (e2p_edit_mntopts(str, mntopts, ~0)) {
1126 fprintf(stderr, _("Invalid mount option set: %s\n"),
1138 static errcode_t init_list(struct str_list *sl)
1142 sl->list = malloc((sl->max+1) * sizeof(char *));
1149 static errcode_t push_string(struct str_list *sl, const char *str)
1153 if (sl->num >= sl->max) {
1155 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1158 sl->list = new_list;
1160 sl->list[sl->num] = malloc(strlen(str)+1);
1161 if (sl->list[sl->num] == 0)
1163 strcpy(sl->list[sl->num], str);
1165 sl->list[sl->num] = 0;
1169 static void print_str_list(char **list)
1173 for (cpp = list; *cpp; cpp++) {
1174 printf("'%s'", *cpp);
1176 fputs(", ", stdout);
1178 fputc('\n', stdout);
1182 * Return TRUE if the profile has the given subsection
1184 static int profile_has_subsection(profile_t prof, const char *section,
1185 const char *subsection)
1188 const char *names[4];
1193 names[1] = subsection;
1196 if (profile_iterator_create(prof, names,
1197 PROFILE_ITER_LIST_SECTION |
1198 PROFILE_ITER_RELATIONS_ONLY, &state))
1201 if ((profile_iterator(&state, &name, 0) == 0) && name) {
1206 profile_iterator_free(&state);
1210 static char **parse_fs_type(const char *fs_type,
1211 const char *usage_types,
1212 struct ext2_super_block *sb,
1213 blk64_t fs_blocks_count,
1216 const char *ext_type = 0;
1218 char *profile_type = 0;
1220 const char *size_type;
1221 struct str_list list;
1222 unsigned long long meg;
1223 int is_hurd = for_hurd(creator_os);
1225 if (init_list(&list))
1232 else if (!strcmp(program_name, "mke3fs"))
1234 else if (!strcmp(program_name, "mke4fs"))
1236 else if (progname) {
1237 ext_type = strrchr(progname, '/');
1241 ext_type = progname;
1243 if (!strncmp(ext_type, "mkfs.", 5)) {
1245 if (ext_type[0] == 0)
1252 profile_get_string(profile, "defaults", "fs_type", 0,
1253 "ext2", &profile_type);
1254 ext_type = profile_type;
1255 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1260 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1261 strcmp(ext_type, "ext2")) {
1262 printf(_("\nYour mke2fs.conf file does not define the "
1263 "%s filesystem type.\n"), ext_type);
1264 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1265 !strcmp(ext_type, "ext4dev")) {
1266 printf("%s", _("You probably need to install an "
1267 "updated mke2fs.conf file.\n\n"));
1270 printf("%s", _("Aborting...\n"));
1275 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1276 if (fs_blocks_count < 3 * meg)
1277 size_type = "floppy";
1278 else if (fs_blocks_count < 512 * meg)
1279 size_type = "small";
1280 else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1281 size_type = "default";
1282 else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1288 usage_types = size_type;
1290 parse_str = malloc(strlen(usage_types)+1);
1296 strcpy(parse_str, usage_types);
1299 push_string(&list, ext_type);
1302 t = strchr(cp, ',');
1307 if (profile_has_subsection(profile, "fs_types", cp))
1308 push_string(&list, cp);
1309 else if (strcmp(cp, "default") != 0)
1311 _("\nWarning: the fs_type %s is not "
1312 "defined in mke2fs.conf\n\n"),
1323 push_string(&list, "hurd");
1327 char *get_string_from_profile(char **types, const char *opt,
1328 const char *def_val)
1333 for (i=0; types[i]; i++);
1334 for (i-=1; i >=0 ; i--) {
1335 profile_get_string(profile, "fs_types", types[i],
1340 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1344 int get_int_from_profile(char **types, const char *opt, int def_val)
1349 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1350 for (cpp = types; *cpp; cpp++)
1351 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1355 static unsigned int get_uint_from_profile(char **types, const char *opt,
1356 unsigned int def_val)
1361 profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1362 for (cpp = types; *cpp; cpp++)
1363 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1367 static double get_double_from_profile(char **types, const char *opt,
1373 profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1374 for (cpp = types; *cpp; cpp++)
1375 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1379 int get_bool_from_profile(char **types, const char *opt, int def_val)
1384 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1385 for (cpp = types; *cpp; cpp++)
1386 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1390 extern const char *mke2fs_default_profile;
1391 static const char *default_files[] = { "<default>", 0 };
1393 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1395 * Sets the geometry of a device (stripe/stride), and returns the
1396 * device's alignment offset, if any, or a negative error.
1398 static int get_device_geometry(const char *file,
1399 struct ext2_super_block *param,
1400 unsigned int psector_size)
1403 unsigned int blocksize;
1406 unsigned long min_io;
1407 unsigned long opt_io;
1408 struct stat statbuf;
1410 /* Nothing to do for a regular file */
1411 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1414 pr = blkid_new_probe_from_filename(file);
1418 tp = blkid_probe_get_topology(pr);
1422 min_io = blkid_topology_get_minimum_io_size(tp);
1423 opt_io = blkid_topology_get_optimal_io_size(tp);
1424 blocksize = EXT2_BLOCK_SIZE(param);
1425 if ((min_io == 0) && (psector_size > blocksize))
1426 min_io = psector_size;
1427 if ((opt_io == 0) && min_io)
1429 if ((opt_io == 0) && (psector_size > blocksize))
1430 opt_io = psector_size;
1432 /* setting stripe/stride to blocksize is pointless */
1433 if (min_io > blocksize)
1434 param->s_raid_stride = min_io / blocksize;
1435 if (opt_io > blocksize)
1436 param->s_raid_stripe_width = opt_io / blocksize;
1438 rc = blkid_topology_get_alignment_offset(tp);
1440 blkid_free_probe(pr);
1445 static void PRS(int argc, char *argv[])
1448 int cluster_size = 0;
1450 int explicit_fssize = 0;
1452 int inode_ratio = 0;
1454 unsigned long flex_bg_size = 0;
1455 double reserved_ratio = -1.0;
1456 int lsector_size = 0, psector_size = 0;
1457 int show_version_only = 0, is_device = 0;
1458 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1460 char * oldpath = getenv("PATH");
1461 char * extended_opts = 0;
1463 char * usage_types = 0;
1465 * NOTE: A few words about fs_blocks_count and blocksize:
1467 * Initially, blocksize is set to zero, which implies 1024.
1468 * If -b is specified, blocksize is updated to the user's value.
1470 * Next, the device size or the user's "blocks" command line argument
1471 * is used to set fs_blocks_count; the units are blocksize.
1473 * Later, if blocksize hasn't been set and the profile specifies a
1474 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1475 * appropriately. Note the change in units!
1477 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1479 blk64_t fs_blocks_count = 0;
1481 int s_opt = -1, r_opt = -1;
1482 char *fs_features = 0;
1483 int fs_features_size = 0;
1486 int pathlen = sizeof(PATH_SET) + 1;
1489 pathlen += strlen(oldpath);
1490 newpath = malloc(pathlen);
1492 fprintf(stderr, "%s",
1493 _("Couldn't allocate memory for new PATH.\n"));
1496 strcpy(newpath, PATH_SET);
1498 /* Update our PATH to include /sbin */
1500 strcat (newpath, ":");
1501 strcat (newpath, oldpath);
1505 tmp = getenv("MKE2FS_SYNC");
1507 sync_kludge = atoi(tmp);
1509 /* Determine the system page size if possible */
1511 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1512 #define _SC_PAGESIZE _SC_PAGE_SIZE
1515 sysval = sysconf(_SC_PAGESIZE);
1517 sys_page_size = sysval;
1518 #endif /* _SC_PAGESIZE */
1519 #endif /* HAVE_SYSCONF */
1521 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1523 profile_set_syntax_err_cb(syntax_err_report);
1524 retval = profile_init(config_fn, &profile);
1525 if (retval == ENOENT) {
1526 retval = profile_init(default_files, &profile);
1529 retval = profile_set_default(profile, mke2fs_default_profile);
1532 } else if (retval) {
1534 fprintf(stderr, _("Couldn't init profile successfully"
1535 " (error: %ld).\n"), retval);
1539 setbuf(stdout, NULL);
1540 setbuf(stderr, NULL);
1541 add_error_table(&et_ext2_error_table);
1542 add_error_table(&et_prof_error_table);
1543 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1544 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1546 if (is_before_linux_ver(2, 2, 0))
1547 fs_param.s_rev_level = 0;
1549 if (argc && *argv) {
1550 program_name = get_progname(*argv);
1552 /* If called as mkfs.ext3, create a journal inode */
1553 if (!strcmp(program_name, "mkfs.ext3") ||
1554 !strcmp(program_name, "mke3fs"))
1558 while ((c = getopt (argc, argv,
1559 "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) {
1562 blocksize = parse_num_blocks2(optarg, -1);
1563 b = (blocksize > 0) ? blocksize : -blocksize;
1564 if (b < EXT2_MIN_BLOCK_SIZE ||
1565 b > EXT2_MAX_BLOCK_SIZE) {
1566 com_err(program_name, 0,
1567 _("invalid block size - %s"), optarg);
1570 if (blocksize > 4096)
1571 fprintf(stderr, _("Warning: blocksize %d not "
1572 "usable on most systems.\n"),
1575 fs_param.s_log_block_size =
1576 int_log2(blocksize >>
1577 EXT2_MIN_BLOCK_LOG_SIZE);
1579 case 'c': /* Check for bad blocks */
1583 cluster_size = parse_num_blocks2(optarg, -1);
1584 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1585 cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1586 com_err(program_name, 0,
1587 _("invalid cluster size - %s"),
1593 src_root_dir = optarg;
1599 com_err(program_name, 0, "%s",
1600 _("'-R' is deprecated, use '-E' instead"));
1603 extended_opts = optarg;
1606 if (strcmp(optarg, "continue") == 0)
1607 errors_behavior = EXT2_ERRORS_CONTINUE;
1608 else if (strcmp(optarg, "remount-ro") == 0)
1609 errors_behavior = EXT2_ERRORS_RO;
1610 else if (strcmp(optarg, "panic") == 0)
1611 errors_behavior = EXT2_ERRORS_PANIC;
1613 com_err(program_name, 0,
1614 _("bad error behavior - %s"),
1623 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1625 com_err(program_name, 0, "%s",
1626 _("Illegal number for blocks per group"));
1629 if ((fs_param.s_blocks_per_group % 8) != 0) {
1630 com_err(program_name, 0, "%s",
1631 _("blocks per group must be multiple of 8"));
1636 flex_bg_size = strtoul(optarg, &tmp, 0);
1638 com_err(program_name, 0, "%s",
1639 _("Illegal number for flex_bg size"));
1642 if (flex_bg_size < 1 ||
1643 (flex_bg_size & (flex_bg_size-1)) != 0) {
1644 com_err(program_name, 0, "%s",
1645 _("flex_bg size must be a power of 2"));
1648 if (flex_bg_size > MAX_32_NUM) {
1649 com_err(program_name, 0,
1650 _("flex_bg size (%lu) must be less than"
1651 " or equal to 2^31"), flex_bg_size);
1656 inode_ratio = parse_num_blocks(optarg, -1);
1657 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1658 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1659 com_err(program_name, 0,
1660 _("invalid inode ratio %s (min %d/max %d)"),
1661 optarg, EXT2_MIN_BLOCK_SIZE,
1662 EXT2_MAX_BLOCK_SIZE * 1024);
1667 inode_size = strtoul(optarg, &tmp, 0);
1669 com_err(program_name, 0,
1670 _("invalid inode size - %s"), optarg);
1679 parse_journal_opts(optarg);
1682 fprintf(stderr, "%s",
1683 _("Warning: -K option is deprecated and "
1684 "should not be used anymore. Use "
1685 "\'-E nodiscard\' extended option "
1690 bad_blocks_filename = realloc(bad_blocks_filename,
1691 strlen(optarg) + 1);
1692 if (!bad_blocks_filename) {
1693 com_err(program_name, ENOMEM, "%s",
1694 _("in malloc for bad_blocks_filename"));
1697 strcpy(bad_blocks_filename, optarg);
1700 volume_label = optarg;
1701 if (strlen(volume_label) > EXT2_LABEL_LEN) {
1702 volume_label[EXT2_LABEL_LEN] = '\0';
1703 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1708 reserved_ratio = strtod(optarg, &tmp);
1709 if ( *tmp || reserved_ratio > 50 ||
1710 reserved_ratio < 0) {
1711 com_err(program_name, 0,
1712 _("invalid reserved blocks percent - %s"),
1724 num_inodes = strtoul(optarg, &tmp, 0);
1726 com_err(program_name, 0,
1727 _("bad num inodes - %s"), optarg);
1732 creator_os = optarg;
1735 retval = ext2fs_resize_mem(fs_features_size,
1736 fs_features_size + 1 + strlen(optarg),
1739 com_err(program_name, retval,
1740 _("while allocating fs_feature string"));
1743 if (fs_features_size)
1744 strcat(fs_features, ",");
1747 strcat(fs_features, optarg);
1748 fs_features_size += 1 + strlen(optarg);
1754 r_opt = strtoul(optarg, &tmp, 0);
1756 com_err(program_name, 0,
1757 _("bad revision level - %s"), optarg);
1760 if (r_opt > EXT2_MAX_SUPP_REV) {
1761 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1762 _("while trying to create revision %d"), r_opt);
1765 fs_param.s_rev_level = r_opt;
1767 case 's': /* deprecated */
1768 s_opt = atoi(optarg);
1775 com_err(program_name, 0, "%s",
1776 _("The -t option may only be used once"));
1779 fs_type = strdup(optarg);
1783 com_err(program_name, 0, "%s",
1784 _("The -T option may only be used once"));
1787 usage_types = strdup(optarg);
1796 /* Print version number and exit */
1797 show_version_only++;
1806 if ((optind == argc) && !show_version_only)
1808 device_name = argv[optind++];
1810 if (!quiet || show_version_only)
1811 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1814 if (show_version_only) {
1815 fprintf(stderr, _("\tUsing %s\n"),
1816 error_message(EXT2_ET_BASE));
1821 * If there's no blocksize specified and there is a journal
1822 * device, use it to figure out the blocksize
1824 if (blocksize <= 0 && journal_device) {
1828 #ifdef CONFIG_TESTIO_DEBUG
1829 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1830 io_ptr = test_io_manager;
1831 test_io_backing_manager = unix_io_manager;
1834 io_ptr = unix_io_manager;
1835 retval = ext2fs_open(journal_device,
1836 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1839 com_err(program_name, retval,
1840 _("while trying to open journal device %s\n"),
1844 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1845 com_err(program_name, 0,
1846 _("Journal dev blocksize (%d) smaller than "
1847 "minimum blocksize %d\n"), jfs->blocksize,
1851 blocksize = jfs->blocksize;
1852 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1853 fs_param.s_log_block_size =
1854 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1855 ext2fs_close_free(&jfs);
1858 if (optind < argc) {
1859 fs_blocks_count = parse_num_blocks2(argv[optind++],
1860 fs_param.s_log_block_size);
1861 if (!fs_blocks_count) {
1862 com_err(program_name, 0,
1863 _("invalid blocks '%s' on device '%s'"),
1864 argv[optind - 1], device_name);
1871 profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1874 /* The isatty() test is so we don't break existing scripts */
1875 flags = CREATE_FILE;
1876 if (isatty(0) && isatty(1) && !offset)
1877 flags |= CHECK_FS_EXIST;
1879 flags |= VERBOSE_CREATE;
1880 if (fs_blocks_count == 0)
1883 explicit_fssize = 1;
1884 if (!check_plausibility(device_name, flags, &is_device) && !force)
1885 proceed_question(proceed_delay);
1887 check_mount(device_name, force, _("filesystem"));
1889 /* Determine the size of the device (if possible) */
1890 if (noaction && fs_blocks_count) {
1891 dev_size = fs_blocks_count;
1894 retval = ext2fs_get_device_size2(device_name,
1895 EXT2_BLOCK_SIZE(&fs_param),
1898 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1899 com_err(program_name, retval, "%s",
1900 _("while trying to determine filesystem size"));
1903 if (!fs_blocks_count) {
1904 if (retval == EXT2_ET_UNIMPLEMENTED) {
1905 com_err(program_name, 0, "%s",
1906 _("Couldn't determine device size; you "
1907 "must specify\nthe size of the "
1911 if (dev_size == 0) {
1912 com_err(program_name, 0, "%s",
1913 _("Device size reported to be zero. "
1914 "Invalid partition specified, or\n\t"
1915 "partition table wasn't reread "
1916 "after running fdisk, due to\n\t"
1917 "a modified partition being busy "
1918 "and in use. You may need to reboot\n\t"
1919 "to re-read your partition table.\n"
1923 fs_blocks_count = dev_size;
1924 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1925 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1926 EXT2_BLOCK_SIZE(&fs_param))-1));
1928 } else if (!force && is_device && (fs_blocks_count > dev_size)) {
1929 com_err(program_name, 0, "%s",
1930 _("Filesystem larger than apparent device size."));
1931 proceed_question(proceed_delay);
1935 profile_get_string(profile, "devices", device_name,
1936 "fs_type", 0, &fs_type);
1938 profile_get_string(profile, "devices", device_name,
1939 "usage_types", 0, &usage_types);
1942 * We have the file system (or device) size, so we can now
1943 * determine the appropriate file system types so the fs can
1944 * be appropriately configured.
1946 fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1947 fs_blocks_count ? fs_blocks_count : dev_size,
1950 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
1954 /* Figure out what features should be enabled */
1957 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1958 tmp = get_string_from_profile(fs_types, "base_features",
1959 "sparse_super,large_file,filetype,resize_inode,dir_index");
1960 edit_feature(tmp, &fs_param.s_feature_compat);
1963 /* And which mount options as well */
1964 tmp = get_string_from_profile(fs_types, "default_mntopts",
1966 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1970 for (cpp = fs_types; *cpp; cpp++) {
1972 profile_get_string(profile, "fs_types", *cpp,
1973 "features", "", &tmp);
1975 edit_feature(tmp, &fs_param.s_feature_compat);
1979 tmp = get_string_from_profile(fs_types, "default_features",
1982 /* Mask off features which aren't supported by the Hurd */
1983 if (for_hurd(creator_os)) {
1984 ext2fs_clear_feature_filetype(&fs_param);
1985 ext2fs_clear_feature_huge_file(&fs_param);
1986 ext2fs_clear_feature_metadata_csum(&fs_param);
1988 edit_feature(fs_features ? fs_features : tmp,
1989 &fs_param.s_feature_compat);
1992 (void) ext2fs_free_mem(&fs_features);
1994 * If the user specified features incompatible with the Hurd, complain
1996 if (for_hurd(creator_os)) {
1997 if (ext2fs_has_feature_filetype(&fs_param)) {
1998 fprintf(stderr, "%s", _("The HURD does not support the "
1999 "filetype feature.\n"));
2002 if (ext2fs_has_feature_huge_file(&fs_param)) {
2003 fprintf(stderr, "%s", _("The HURD does not support the "
2004 "huge_file feature.\n"));
2007 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2008 fprintf(stderr, "%s", _("The HURD does not support the "
2009 "metadata_csum feature.\n"));
2014 /* Get the hardware sector sizes, if available */
2015 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2017 com_err(program_name, retval, "%s",
2018 _("while trying to determine hardware sector size"));
2021 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2023 com_err(program_name, retval, "%s",
2024 _("while trying to determine physical sector size"));
2028 tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2030 lsector_size = atoi(tmp);
2031 tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2033 psector_size = atoi(tmp);
2035 /* Older kernels may not have physical/logical distinction */
2037 psector_size = lsector_size;
2039 if (blocksize <= 0) {
2040 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2042 if (use_bsize == -1) {
2043 use_bsize = sys_page_size;
2044 if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2047 if (lsector_size && use_bsize < lsector_size)
2048 use_bsize = lsector_size;
2049 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2050 use_bsize = -blocksize;
2051 blocksize = use_bsize;
2052 fs_blocks_count /= (blocksize / 1024);
2054 if (blocksize < lsector_size) { /* Impossible */
2055 com_err(program_name, EINVAL, "%s",
2056 _("while setting blocksize; too small "
2059 } else if ((blocksize < psector_size) &&
2060 (psector_size <= sys_page_size)) { /* Suboptimal */
2061 fprintf(stderr, _("Warning: specified blocksize %d is "
2062 "less than device physical sectorsize %d\n"),
2063 blocksize, psector_size);
2067 fs_param.s_log_block_size =
2068 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2071 * We now need to do a sanity check of fs_blocks_count for
2072 * 32-bit vs 64-bit block number support.
2074 if ((fs_blocks_count > MAX_32_NUM) &&
2075 ext2fs_has_feature_64bit(&fs_param))
2076 ext2fs_clear_feature_resize_inode(&fs_param);
2077 if ((fs_blocks_count > MAX_32_NUM) &&
2078 !ext2fs_has_feature_64bit(&fs_param) &&
2079 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2080 ext2fs_set_feature_64bit(&fs_param);
2081 ext2fs_clear_feature_resize_inode(&fs_param);
2083 if ((fs_blocks_count > MAX_32_NUM) &&
2084 !ext2fs_has_feature_64bit(&fs_param)) {
2085 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2086 "too big to be expressed\n\t"
2087 "in 32 bits using a blocksize of %d.\n"),
2088 program_name, fs_blocks_count, device_name,
2089 EXT2_BLOCK_SIZE(&fs_param));
2093 * Guard against group descriptor count overflowing... Mostly to avoid
2094 * strange results for absurdly large devices.
2096 if (fs_blocks_count > ((1ULL << (fs_param.s_log_block_size + 3 + 32)) - 1)) {
2097 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2098 "too big to create\n\t"
2099 "a filesystem using a blocksize of %d.\n"),
2100 program_name, fs_blocks_count, device_name,
2101 EXT2_BLOCK_SIZE(&fs_param));
2105 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2107 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2108 fs_types[0] = strdup("journal");
2113 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2114 print_str_list(fs_types);
2117 if (r_opt == EXT2_GOOD_OLD_REV &&
2118 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2119 fs_param.s_feature_ro_compat)) {
2120 fprintf(stderr, "%s", _("Filesystem features not supported "
2121 "with revision 0 filesystems\n"));
2126 if (r_opt == EXT2_GOOD_OLD_REV) {
2127 fprintf(stderr, "%s",
2128 _("Sparse superblocks not supported "
2129 "with revision 0 filesystems\n"));
2132 ext2fs_set_feature_sparse_super(&fs_param);
2133 } else if (s_opt == 0)
2134 ext2fs_clear_feature_sparse_super(&fs_param);
2136 if (journal_size != 0) {
2137 if (r_opt == EXT2_GOOD_OLD_REV) {
2138 fprintf(stderr, "%s", _("Journals not supported with "
2139 "revision 0 filesystems\n"));
2142 ext2fs_set_feature_journal(&fs_param);
2145 /* Get reserved_ratio from profile if not specified on cmd line. */
2146 if (reserved_ratio < 0.0) {
2147 reserved_ratio = get_double_from_profile(
2148 fs_types, "reserved_ratio", 5.0);
2149 if (reserved_ratio > 50 || reserved_ratio < 0) {
2150 com_err(program_name, 0,
2151 _("invalid reserved blocks percent - %lf"),
2157 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2159 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2160 fs_param.s_feature_compat = 0;
2161 fs_param.s_feature_ro_compat &=
2162 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2165 /* Check the user's mkfs options for 64bit */
2166 if (ext2fs_has_feature_64bit(&fs_param) &&
2167 !ext2fs_has_feature_extents(&fs_param)) {
2168 printf("%s", _("Extents MUST be enabled for a 64-bit "
2169 "filesystem. Pass -O extents to rectify.\n"));
2173 /* Set first meta blockgroup via an environment variable */
2174 /* (this is mostly for debugging purposes) */
2175 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2176 (tmp = getenv("MKE2FS_FIRST_META_BG")))
2177 fs_param.s_first_meta_bg = atoi(tmp);
2178 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2180 cluster_size = get_int_from_profile(fs_types,
2183 fs_param.s_log_cluster_size =
2184 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2185 if (fs_param.s_log_cluster_size &&
2186 fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2187 com_err(program_name, 0, "%s",
2188 _("The cluster size may not be "
2189 "smaller than the block size.\n"));
2192 } else if (cluster_size) {
2193 com_err(program_name, 0, "%s",
2194 _("specifying a cluster size requires the "
2195 "bigalloc feature"));
2198 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2200 if (inode_ratio == 0) {
2201 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2203 if (inode_ratio < blocksize)
2204 inode_ratio = blocksize;
2205 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2206 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2209 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2210 retval = get_device_geometry(device_name, &fs_param,
2211 (unsigned int) psector_size);
2214 _("warning: Unable to get device geometry for %s\n"),
2216 } else if (retval) {
2217 printf(_("%s alignment is offset by %lu bytes.\n"),
2218 device_name, retval);
2219 printf(_("This may result in very poor performance, "
2220 "(re)-partitioning suggested.\n"));
2224 num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2226 blocksize = EXT2_BLOCK_SIZE(&fs_param);
2229 * Initialize s_desc_size so that the parse_extended_opts()
2230 * can correctly handle "-E resize=NNN" if the 64-bit option
2233 if (ext2fs_has_feature_64bit(&fs_param))
2234 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2236 /* This check should happen beyond the last assignment to blocksize */
2237 if (blocksize > sys_page_size) {
2239 com_err(program_name, 0,
2240 _("%d-byte blocks too big for system (max %d)"),
2241 blocksize, sys_page_size);
2242 proceed_question(proceed_delay);
2244 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2245 "(max %d), forced to continue\n"),
2246 blocksize, sys_page_size);
2249 /* Metadata checksumming wasn't totally stable before 3.18. */
2250 if (is_before_linux_ver(3, 18, 0) &&
2251 ext2fs_has_feature_metadata_csum(&fs_param))
2252 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2253 "improved stability of the metadata and journal "
2254 "checksum features.\n"));
2257 * On newer kernels we do have lazy_itable_init support. So pick the
2258 * right default in case ext4 module is not loaded.
2260 if (is_before_linux_ver(2, 6, 37))
2261 lazy_itable_init = 0;
2263 lazy_itable_init = 1;
2265 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2266 lazy_itable_init = 1;
2268 lazy_itable_init = get_bool_from_profile(fs_types,
2271 discard = get_bool_from_profile(fs_types, "discard" , discard);
2272 journal_flags |= get_bool_from_profile(fs_types,
2273 "lazy_journal_init", 0) ?
2274 EXT2_MKJOURNAL_LAZYINIT : 0;
2275 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2277 if (!journal_location_string)
2278 journal_location_string = get_string_from_profile(fs_types,
2279 "journal_location", "");
2280 if ((journal_location == ~0ULL) && journal_location_string &&
2281 *journal_location_string)
2282 journal_location = parse_num_blocks2(journal_location_string,
2283 fs_param.s_log_block_size);
2284 free(journal_location_string);
2286 packed_meta_blocks = get_bool_from_profile(fs_types,
2287 "packed_meta_blocks", 0);
2288 if (packed_meta_blocks)
2289 journal_location = 0;
2291 /* Get options from profile */
2292 for (cpp = fs_types; *cpp; cpp++) {
2294 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2296 parse_extended_opts(&fs_param, tmp);
2301 parse_extended_opts(&fs_param, extended_opts);
2303 if (explicit_fssize == 0 && offset > 0) {
2304 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2305 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2307 _("\nWarning: offset specified without an "
2308 "explicit file system size.\n"
2309 "Creating a file system with %llu blocks "
2311 "not be what you want.\n\n"),
2312 (unsigned long long) fs_blocks_count);
2315 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2316 if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2317 ext2fs_has_feature_gdt_csum(&fs_param))
2318 ext2fs_clear_feature_gdt_csum(&fs_param);
2320 /* Can't support bigalloc feature without extents feature */
2321 if (ext2fs_has_feature_bigalloc(&fs_param) &&
2322 !ext2fs_has_feature_extents(&fs_param)) {
2323 com_err(program_name, 0, "%s",
2324 _("Can't support bigalloc feature without "
2325 "extents feature"));
2329 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2330 ext2fs_has_feature_resize_inode(&fs_param)) {
2331 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2332 "features are not compatible.\n"
2333 "They can not be both enabled "
2334 "simultaneously.\n"));
2338 if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2339 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2340 "still under development\n"
2341 "See https://ext4.wiki.kernel.org/"
2342 "index.php/Bigalloc for more information\n\n"));
2345 * Since sparse_super is the default, we would only have a problem
2346 * here if it was explicitly disabled.
2348 if (ext2fs_has_feature_resize_inode(&fs_param) &&
2349 !ext2fs_has_feature_sparse_super(&fs_param)) {
2350 com_err(program_name, 0, "%s",
2351 _("reserved online resize blocks not supported "
2352 "on non-sparse filesystem"));
2356 if (fs_param.s_blocks_per_group) {
2357 if (fs_param.s_blocks_per_group < 256 ||
2358 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2359 com_err(program_name, 0, "%s",
2360 _("blocks per group count out of range"));
2366 * If the bigalloc feature is enabled, then the -g option will
2367 * specify the number of clusters per group.
2369 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2370 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2371 fs_param.s_blocks_per_group = 0;
2374 if (inode_size == 0)
2375 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2376 if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2377 flex_bg_size = get_uint_from_profile(fs_types,
2378 "flex_bg_size", 16);
2380 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2381 com_err(program_name, 0, "%s",
2382 _("Flex_bg feature not enabled, so "
2383 "flex_bg size may not be specified"));
2386 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2389 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2390 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2391 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2392 inode_size & (inode_size - 1)) {
2393 com_err(program_name, 0,
2394 _("invalid inode size %d (min %d/max %d)"),
2395 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2399 fs_param.s_inode_size = inode_size;
2403 * If inode size is 128 and inline data is enabled, we need
2404 * to notify users that inline data will never be useful.
2406 if (ext2fs_has_feature_inline_data(&fs_param) &&
2407 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2408 com_err(program_name, 0,
2409 _("%d byte inodes are too small for inline data; "
2410 "specify larger size"),
2411 fs_param.s_inode_size);
2416 * If inode size is 128 and project quota is enabled, we need
2417 * to notify users that project ID will never be useful.
2419 if (ext2fs_has_feature_project(&fs_param) &&
2420 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2421 com_err(program_name, 0,
2422 _("%d byte inodes are too small for project quota; "
2423 "specify larger size"),
2424 fs_param.s_inode_size);
2428 /* Make sure number of inodes specified will fit in 32 bits */
2429 if (num_inodes == 0) {
2430 unsigned long long n;
2431 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2432 if (n > MAX_32_NUM) {
2433 if (ext2fs_has_feature_64bit(&fs_param))
2434 num_inodes = MAX_32_NUM;
2436 com_err(program_name, 0,
2437 _("too many inodes (%llu), raise "
2438 "inode ratio?"), n);
2442 } else if (num_inodes > MAX_32_NUM) {
2443 com_err(program_name, 0,
2444 _("too many inodes (%llu), specify < 2^32 inodes"),
2449 * Calculate number of inodes based on the inode ratio
2451 fs_param.s_inodes_count = num_inodes ? num_inodes :
2452 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2454 if ((((unsigned long long)fs_param.s_inodes_count) *
2455 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2456 ((ext2fs_blocks_count(&fs_param)) *
2457 EXT2_BLOCK_SIZE(&fs_param))) {
2458 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2459 "(%u) too big for a\n\t"
2460 "filesystem with %llu blocks, "
2461 "specify higher inode_ratio (-i)\n\t"
2462 "or lower inode count (-N).\n"),
2463 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2464 fs_param.s_inodes_count,
2465 (unsigned long long) ext2fs_blocks_count(&fs_param));
2470 * Calculate number of blocks to reserve
2472 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2473 ext2fs_blocks_count(&fs_param) / 100.0);
2475 if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2476 if (num_backups >= 1)
2477 fs_param.s_backup_bgs[0] = 1;
2478 if (num_backups >= 2)
2479 fs_param.s_backup_bgs[1] = ~0;
2486 static int should_do_undo(const char *name)
2491 struct ext2_super_block super;
2492 io_manager manager = unix_io_manager;
2493 int csum_flag, force_undo;
2495 csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2496 ext2fs_has_feature_gdt_csum(&fs_param);
2497 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2498 if (!force_undo && (!csum_flag || !lazy_itable_init))
2501 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
2504 * We don't handle error cases instead we
2505 * declare that the file system doesn't exist
2506 * and let the rest of mke2fs take care of
2513 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2514 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2520 #if defined(WORDS_BIGENDIAN)
2521 s_magic = ext2fs_swab16(super.s_magic);
2523 s_magic = super.s_magic;
2526 if (s_magic == EXT2_SUPER_MAGIC)
2530 io_channel_close(channel);
2537 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2539 errcode_t retval = ENOMEM;
2540 char *tdb_dir = NULL, *tdb_file = NULL;
2541 char *dev_name, *tmp_name;
2542 int free_tdb_dir = 0;
2544 /* (re)open a specific undo file */
2545 if (undo_file && undo_file[0] != 0) {
2546 retval = set_undo_io_backing_manager(*io_ptr);
2549 *io_ptr = undo_io_manager;
2550 retval = set_undo_io_backup_file(undo_file);
2553 printf(_("Overwriting existing filesystem; this can be undone "
2554 "using the command:\n"
2555 " e2undo %s %s\n\n"), undo_file, name);
2560 * Configuration via a conf file would be
2563 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2565 profile_get_string(profile, "defaults",
2566 "undo_dir", 0, "/var/lib/e2fsprogs",
2571 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2572 access(tdb_dir, W_OK)) {
2578 tmp_name = strdup(name);
2581 dev_name = basename(tmp_name);
2582 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2587 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2590 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2592 com_err(program_name, retval,
2593 _("while trying to delete %s"), tdb_file);
2597 retval = set_undo_io_backing_manager(*io_ptr);
2600 *io_ptr = undo_io_manager;
2601 retval = set_undo_io_backup_file(tdb_file);
2604 printf(_("Overwriting existing filesystem; this can be undone "
2605 "using the command:\n"
2606 " e2undo %s %s\n\n"), tdb_file, name);
2618 com_err(program_name, retval, "%s",
2619 _("while trying to setup undo file\n"));
2623 static int mke2fs_discard_device(ext2_filsys fs)
2625 struct ext2fs_numeric_progress_struct progress;
2626 blk64_t blocks = ext2fs_blocks_count(fs->super);
2627 blk64_t count = DISCARD_STEP_MB;
2632 * Let's try if discard really works on the device, so
2633 * we do not print numeric progress resulting in failure
2636 retval = io_channel_discard(fs->io, 0, fs->blocksize);
2639 cur = fs->blocksize;
2641 count *= (1024 * 1024);
2642 count /= fs->blocksize;
2644 ext2fs_numeric_progress_init(fs, &progress,
2645 _("Discarding device blocks: "),
2647 while (cur < blocks) {
2648 ext2fs_numeric_progress_update(fs, &progress, cur);
2650 if (cur + count > blocks)
2651 count = blocks - cur;
2653 retval = io_channel_discard(fs->io, cur, count);
2660 ext2fs_numeric_progress_close(fs, &progress,
2663 printf("%s\n",error_message(retval));
2665 ext2fs_numeric_progress_close(fs, &progress,
2671 static void fix_cluster_bg_counts(ext2_filsys fs)
2673 blk64_t block, num_blocks, last_block, next;
2674 blk64_t tot_free = 0;
2679 num_blocks = ext2fs_blocks_count(fs->super);
2680 last_block = ext2fs_group_last_block2(fs, group);
2681 block = fs->super->s_first_data_block;
2682 while (block < num_blocks) {
2683 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2684 block, last_block, &next);
2688 block = last_block + 1;
2692 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2693 block, last_block, &next);
2695 next = last_block + 1;
2696 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2697 tot_free += next - block;
2700 if (block > last_block) {
2702 ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2703 ext2fs_group_desc_csum_set(fs, group);
2706 last_block = ext2fs_group_last_block2(fs, group);
2709 ext2fs_free_blocks_count_set(fs->super, tot_free);
2712 static int create_quota_inodes(ext2_filsys fs)
2717 retval = quota_init_context(&qctx, fs, quotatype_bits);
2719 com_err(program_name, retval,
2720 _("while initializing quota context"));
2723 quota_compute_usage(qctx);
2724 retval = quota_write_inode(qctx, quotatype_bits);
2726 com_err(program_name, retval,
2727 _("while writing quota inodes"));
2730 quota_release_context(&qctx);
2735 static errcode_t set_error_behavior(ext2_filsys fs)
2738 short errors = fs->super->s_errors;
2740 arg = get_string_from_profile(fs_types, "errors", NULL);
2744 if (strcmp(arg, "continue") == 0)
2745 errors = EXT2_ERRORS_CONTINUE;
2746 else if (strcmp(arg, "remount-ro") == 0)
2747 errors = EXT2_ERRORS_RO;
2748 else if (strcmp(arg, "panic") == 0)
2749 errors = EXT2_ERRORS_PANIC;
2751 com_err(program_name, 0,
2752 _("bad error behavior in profile - %s"),
2755 return EXT2_ET_INVALID_ARGUMENT;
2760 if (errors_behavior)
2761 errors = errors_behavior;
2763 fs->super->s_errors = errors;
2767 int main (int argc, char *argv[])
2769 errcode_t retval = 0;
2771 badblocks_list bb_list = 0;
2772 unsigned int journal_blocks = 0;
2773 unsigned int i, checkinterval;
2779 char opt_string[40];
2781 int itable_zeroed = 0;
2784 setlocale(LC_MESSAGES, "");
2785 setlocale(LC_CTYPE, "");
2786 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2787 textdomain(NLS_CAT_NAME);
2788 set_com_err_gettext(gettext);
2792 #ifdef CONFIG_TESTIO_DEBUG
2793 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2794 io_ptr = test_io_manager;
2795 test_io_backing_manager = unix_io_manager;
2798 io_ptr = unix_io_manager;
2800 if (undo_file != NULL || should_do_undo(device_name)) {
2801 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2807 * Initialize the superblock....
2809 flags = EXT2_FLAG_EXCLUSIVE;
2811 flags |= EXT2_FLAG_DIRECT_IO;
2812 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2815 flags |= EXT2_FLAG_64BITS;
2817 * By default, we print how many inode tables or block groups
2818 * or whatever we've written so far. The quiet flag disables
2819 * this, along with a lot of other output.
2822 flags |= EXT2_FLAG_PRINT_PROGRESS;
2823 retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
2825 com_err(device_name, retval, "%s",
2826 _("while setting up superblock"));
2829 fs->progress_ops = &ext2fs_numeric_progress_ops;
2831 /* Set the error behavior */
2832 retval = set_error_behavior(fs);
2836 /* Check the user's mkfs options for metadata checksumming */
2838 !ext2fs_has_feature_journal_dev(fs->super) &&
2839 ext2fs_has_feature_metadata_csum(fs->super)) {
2840 if (!ext2fs_has_feature_extents(fs->super))
2842 _("Extents are not enabled. The file extent "
2843 "tree can be checksummed, whereas block maps "
2844 "cannot. Not enabling extents reduces the "
2845 "coverage of metadata checksumming. "
2846 "Pass -O extents to rectify.\n"));
2847 if (!ext2fs_has_feature_64bit(fs->super))
2849 _("64-bit filesystem support is not enabled. "
2850 "The larger fields afforded by this feature "
2851 "enable full-strength checksumming. "
2852 "Pass -O 64bit to rectify.\n"));
2855 if (ext2fs_has_feature_csum_seed(fs->super) &&
2856 !ext2fs_has_feature_metadata_csum(fs->super)) {
2857 printf("%s", _("The metadata_csum_seed feature "
2858 "requres the metadata_csum feature.\n"));
2862 /* Calculate journal blocks */
2863 if (!journal_device && ((journal_size) ||
2864 ext2fs_has_feature_journal(&fs_param)))
2865 journal_blocks = figure_journal_size(journal_size, fs);
2867 sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2868 32768 : fs->blocksize * 8);
2869 io_channel_set_options(fs->io, opt_string);
2871 sprintf(opt_string, "offset=%llu", offset);
2872 io_channel_set_options(fs->io, opt_string);
2875 /* Can't undo discard ... */
2876 if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
2877 retval = mke2fs_discard_device(fs);
2878 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2881 _("Discard succeeded and will return "
2882 "0s - skipping inode table wipe\n"));
2883 lazy_itable_init = 1;
2889 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2890 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2892 if (ext2fs_has_feature_flex_bg(&fs_param) ||
2893 ext2fs_has_feature_huge_file(&fs_param) ||
2894 ext2fs_has_feature_gdt_csum(&fs_param) ||
2895 ext2fs_has_feature_dir_nlink(&fs_param) ||
2896 ext2fs_has_feature_metadata_csum(&fs_param) ||
2897 ext2fs_has_feature_extra_isize(&fs_param))
2898 fs->super->s_kbytes_written = 1;
2901 * Wipe out the old on-disk superblock
2904 zap_sector(fs, 2, 6);
2907 * Parse or generate a UUID for the filesystem
2910 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2911 com_err(device_name, 0, "could not parse UUID: %s\n",
2916 uuid_generate(fs->super->s_uuid);
2918 if (ext2fs_has_feature_csum_seed(fs->super))
2919 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
2920 fs->super->s_uuid, sizeof(fs->super->s_uuid));
2922 ext2fs_init_csum_seed(fs);
2925 * Initialize the directory index variables
2927 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2929 hash_alg = e2p_string2hash(hash_alg_str);
2931 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2933 uuid_generate((unsigned char *) fs->super->s_hash_seed);
2936 * Periodic checks can be enabled/disabled via config file.
2937 * Note we override the kernel include file's idea of what the default
2938 * check interval (never) should be. It's a good idea to check at
2939 * least *occasionally*, specially since servers will never rarely get
2940 * to reboot, since Linux is so robust these days. :-)
2942 * 180 days (six months) seems like a good value.
2944 #ifdef EXT2_DFL_CHECKINTERVAL
2945 #undef EXT2_DFL_CHECKINTERVAL
2947 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2949 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
2950 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
2951 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
2953 * Add "jitter" to the superblock's check interval so that we
2954 * don't check all the filesystems at the same time. We use a
2955 * kludgy hack of using the UUID to derive a random jitter value
2957 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2958 val += fs->super->s_uuid[i];
2959 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2961 fs->super->s_max_mnt_count = -1;
2964 * Override the creator OS, if applicable
2966 if (creator_os && !set_os(fs->super, creator_os)) {
2967 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2972 * For the Hurd, we will turn off filetype since it doesn't
2975 if (fs->super->s_creator_os == EXT2_OS_HURD)
2976 ext2fs_clear_feature_filetype(fs->super);
2979 * Set the volume label...
2982 memset(fs->super->s_volume_name, 0,
2983 sizeof(fs->super->s_volume_name));
2984 strncpy(fs->super->s_volume_name, volume_label,
2985 sizeof(fs->super->s_volume_name));
2989 * Set the last mount directory
2992 memset(fs->super->s_last_mounted, 0,
2993 sizeof(fs->super->s_last_mounted));
2994 strncpy(fs->super->s_last_mounted, mount_dir,
2995 sizeof(fs->super->s_last_mounted));
2998 /* Set current default encryption algorithms for data and
2999 * filename encryption */
3000 if (ext2fs_has_feature_encrypt(fs->super)) {
3001 fs->super->s_encrypt_algos[0] =
3002 EXT4_ENCRYPTION_MODE_AES_256_XTS;
3003 fs->super->s_encrypt_algos[1] =
3004 EXT4_ENCRYPTION_MODE_AES_256_CTS;
3007 if (ext2fs_has_feature_metadata_csum(fs->super))
3008 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3010 if (!quiet || noaction)
3016 if (ext2fs_has_feature_journal_dev(fs->super)) {
3017 create_journal_dev(fs);
3019 exit(ext2fs_close_free(&fs) ? 1 : 0);
3022 if (bad_blocks_filename)
3023 read_bb_file(fs, &bb_list, bad_blocks_filename);
3025 test_disk(fs, &bb_list);
3026 handle_bad_blocks(fs, bb_list);
3028 fs->stride = fs_stride = fs->super->s_raid_stride;
3030 printf("%s", _("Allocating group tables: "));
3031 if (ext2fs_has_feature_flex_bg(fs->super) &&
3033 retval = packed_allocate_tables(fs);
3035 retval = ext2fs_allocate_tables(fs);
3037 com_err(program_name, retval, "%s",
3038 _("while trying to allocate filesystem tables"));
3042 printf("%s", _("done \n"));
3044 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3046 com_err(program_name, retval, "%s",
3047 _("\n\twhile converting subcluster bitmap"));
3052 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3053 printf(_("%s may be further corrupted by superblock rewrite\n"),
3056 proceed_question(proceed_delay);
3057 fs->super->s_state |= EXT2_ERROR_FS;
3058 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3060 * The command "mke2fs -S" is used to recover
3061 * corrupted file systems, so do not mark any of the
3062 * inodes as unused; we want e2fsck to consider all
3063 * inodes as potentially containing recoverable data.
3065 if (ext2fs_has_group_desc_csum(fs)) {
3066 for (i = 0; i < fs->group_desc_count; i++)
3067 ext2fs_bg_itable_unused_set(fs, i, 0);
3070 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3071 blk64_t rsv = 65536 / fs->blocksize;
3072 blk64_t blocks = ext2fs_blocks_count(fs->super);
3076 #ifdef ZAP_BOOTBLOCK
3077 zap_sector(fs, 0, 2);
3081 * Wipe out any old MD RAID (or other) metadata at the end
3082 * of the device. This will also verify that the device is
3083 * as large as we think. Be careful with very small devices.
3085 start = (blocks & ~(rsv - 1));
3089 retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3093 com_err(program_name, retval,
3094 _("while zeroing block %llu at end of filesystem"),
3097 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3098 create_root_dir(fs);
3099 create_lost_and_found(fs);
3101 create_bad_block_inode(fs, bb_list);
3102 if (ext2fs_has_feature_resize_inode(fs->super)) {
3103 retval = ext2fs_create_resize_inode(fs);
3105 com_err("ext2fs_create_resize_inode", retval,
3107 _("while reserving blocks for online resize"));
3113 if (journal_device) {
3116 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3118 proceed_question(proceed_delay);
3119 check_mount(journal_device, force, _("journal"));
3121 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3122 EXT2_FLAG_JOURNAL_DEV_OK, 0,
3123 fs->blocksize, unix_io_manager, &jfs);
3125 com_err(program_name, retval,
3126 _("while trying to open journal device %s\n"),
3131 printf(_("Adding journal to device %s: "),
3135 retval = ext2fs_add_journal_device(fs, jfs);
3137 com_err (program_name, retval,
3138 _("\n\twhile trying to add journal to device %s"),
3143 printf("%s", _("done\n"));
3144 ext2fs_close_free(&jfs);
3145 free(journal_device);
3146 } else if ((journal_size) ||
3147 ext2fs_has_feature_journal(&fs_param)) {
3149 printf("%s", _("Skipping journal creation in super-only mode\n"));
3150 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3154 if (!journal_blocks) {
3155 ext2fs_clear_feature_journal(fs->super);
3159 printf(_("Creating journal (%u blocks): "),
3163 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3167 com_err(program_name, retval, "%s",
3168 _("\n\twhile trying to create journal"));
3172 printf("%s", _("done\n"));
3176 ext2fs_has_feature_mmp(fs->super)) {
3177 retval = ext2fs_mmp_init(fs);
3179 fprintf(stderr, "%s",
3180 _("\nError while enabling multiple "
3181 "mount protection feature."));
3185 printf(_("Multiple mount protection is enabled "
3186 "with update interval %d seconds.\n"),
3187 fs->super->s_mmp_update_interval);
3190 if (ext2fs_has_feature_bigalloc(&fs_param))
3191 fix_cluster_bg_counts(fs);
3192 if (ext2fs_has_feature_project(&fs_param))
3193 quotatype_bits |= QUOTA_PRJ_BIT;
3194 if (ext2fs_has_feature_quota(&fs_param))
3195 create_quota_inodes(fs);
3197 retval = mk_hugefiles(fs, device_name);
3199 com_err(program_name, retval, "while creating huge files");
3200 /* Copy files from the specified directory */
3203 printf("%s", _("Copying files into the device: "));
3205 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3208 com_err(program_name, retval, "%s",
3209 _("while populating file system"));
3212 printf("%s", _("done\n"));
3216 printf("%s", _("Writing superblocks and "
3217 "filesystem accounting information: "));
3218 checkinterval = fs->super->s_checkinterval;
3219 max_mnt_count = fs->super->s_max_mnt_count;
3220 retval = ext2fs_close_free(&fs);
3222 fprintf(stderr, "%s",
3223 _("\nWarning, had trouble writing out superblocks."));
3224 } else if (!quiet) {
3225 printf("%s", _("done\n\n"));
3226 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3227 print_check_message(max_mnt_count, checkinterval);
3230 remove_error_table(&et_ext2_error_table);
3231 remove_error_table(&et_prof_error_table);
3232 profile_release(profile);
3233 for (i=0; fs_types[i]; i++)