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,
635 (void) ext2fs_free_mem(&buf);
637 com_err("create_journal_dev", retval, "%s",
638 _("while writing journal superblock"));
643 static void show_stats(ext2_filsys fs)
645 struct ext2_super_block *s = fs->super;
653 printf(_("Creating filesystem with %llu %dk blocks and "
655 ext2fs_blocks_count(s), fs->blocksize >> 10,
660 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
661 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
662 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
664 memset(buf, 0, sizeof(buf));
665 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
666 printf(_("Filesystem label=%s\n"), buf);
667 os = e2p_os2string(fs->super->s_creator_os);
669 printf(_("OS type: %s\n"), os);
671 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
672 s->s_log_block_size);
673 if (ext2fs_has_feature_bigalloc(fs->super))
674 printf(_("Cluster size=%u (log=%u)\n"),
675 fs->blocksize << fs->cluster_ratio_bits,
676 s->s_log_cluster_size);
678 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
679 s->s_log_cluster_size);
680 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
681 s->s_raid_stride, s->s_raid_stripe_width);
682 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
683 ext2fs_blocks_count(s));
684 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
685 ext2fs_r_blocks_count(s),
686 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
687 printf(_("First data block=%u\n"), s->s_first_data_block);
688 if (root_uid != 0 || root_gid != 0)
689 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
690 if (s->s_reserved_gdt_blocks)
691 printf(_("Maximum filesystem blocks=%lu\n"),
692 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
693 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
694 if (fs->group_desc_count > 1)
695 printf(_("%u block groups\n"), fs->group_desc_count);
697 printf(_("%u block group\n"), fs->group_desc_count);
698 if (ext2fs_has_feature_bigalloc(fs->super))
699 printf(_("%u blocks per group, %u clusters per group\n"),
700 s->s_blocks_per_group, s->s_clusters_per_group);
702 printf(_("%u blocks per group, %u fragments per group\n"),
703 s->s_blocks_per_group, s->s_clusters_per_group);
704 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
707 if (fs->group_desc_count == 1) {
712 if (!e2p_is_null_uuid(s->s_uuid))
713 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
714 printf("%s", _("Superblock backups stored on blocks: "));
715 group_block = s->s_first_data_block;
717 for (i = 1; i < fs->group_desc_count; i++) {
718 group_block += s->s_blocks_per_group;
719 if (!ext2fs_bg_has_super(fs, i))
723 need = int_log10(group_block) + 2;
724 if (need > col_left) {
729 printf("%llu", group_block);
735 * Returns true if making a file system for the Hurd, else 0
737 static int for_hurd(const char *os)
747 return (atoi(os) == EXT2_OS_HURD);
748 return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
752 * Set the S_CREATOR_OS field. Return true if OS is known,
755 static int set_os(struct ext2_super_block *sb, char *os)
758 sb->s_creator_os = atoi (os);
759 else if (strcasecmp(os, "linux") == 0)
760 sb->s_creator_os = EXT2_OS_LINUX;
761 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
762 sb->s_creator_os = EXT2_OS_HURD;
763 else if (strcasecmp(os, "freebsd") == 0)
764 sb->s_creator_os = EXT2_OS_FREEBSD;
765 else if (strcasecmp(os, "lites") == 0)
766 sb->s_creator_os = EXT2_OS_LITES;
772 #define PATH_SET "PATH=/sbin"
774 static void parse_extended_opts(struct ext2_super_block *param,
777 char *buf, *token, *next, *p, *arg, *badopt = 0;
785 fprintf(stderr, "%s",
786 _("Couldn't allocate memory to parse options!\n"));
790 for (token = buf; token && *token; token = next) {
791 p = strchr(token, ',');
797 arg = strchr(token, '=');
802 if (strcmp(token, "desc-size") == 0 ||
803 strcmp(token, "desc_size") == 0) {
806 if (!ext2fs_has_feature_64bit(&fs_param)) {
808 _("%s requires '-O 64bit'\n"), token);
812 if (param->s_reserved_gdt_blocks != 0) {
814 _("'%s' must be before 'resize=%u'\n"),
815 token, param->s_reserved_gdt_blocks);
824 desc_size = strtoul(arg, &p, 0);
825 if (*p || (desc_size & (desc_size - 1))) {
827 _("Invalid desc_size: '%s'\n"), arg);
831 param->s_desc_size = desc_size;
832 } else if (strcmp(token, "offset") == 0) {
838 offset = strtoull(arg, &p, 0);
840 fprintf(stderr, _("Invalid offset: %s\n"),
845 } else if (strcmp(token, "mmp_update_interval") == 0) {
851 param->s_mmp_update_interval = strtoul(arg, &p, 0);
854 _("Invalid mmp_update_interval: %s\n"),
859 } else if (strcmp(token, "num_backup_sb") == 0) {
865 num_backups = strtoul(arg, &p, 0);
866 if (*p || num_backups > 2) {
868 _("Invalid # of backup "
869 "superblocks: %s\n"),
874 } else if (strcmp(token, "packed_meta_blocks") == 0) {
876 packed_meta_blocks = strtoul(arg, &p, 0);
878 packed_meta_blocks = 1;
879 if (packed_meta_blocks)
880 journal_location = 0;
881 } else if (strcmp(token, "stride") == 0) {
887 param->s_raid_stride = strtoul(arg, &p, 0);
890 _("Invalid stride parameter: %s\n"),
895 } else if (strcmp(token, "stripe-width") == 0 ||
896 strcmp(token, "stripe_width") == 0) {
902 param->s_raid_stripe_width = strtoul(arg, &p, 0);
905 _("Invalid stripe-width parameter: %s\n"),
910 } else if (!strcmp(token, "resize")) {
912 unsigned long bpg, rsv_groups;
913 unsigned long group_desc_count, desc_blocks;
914 unsigned int gdpb, blocksize;
923 resize = parse_num_blocks2(arg,
924 param->s_log_block_size);
928 _("Invalid resize parameter: %s\n"),
933 if (resize <= ext2fs_blocks_count(param)) {
934 fprintf(stderr, "%s",
935 _("The resize maximum must be greater "
936 "than the filesystem size.\n"));
941 blocksize = EXT2_BLOCK_SIZE(param);
942 bpg = param->s_blocks_per_group;
945 gdpb = EXT2_DESC_PER_BLOCK(param);
946 group_desc_count = (__u32) ext2fs_div64_ceil(
947 ext2fs_blocks_count(param), bpg);
948 desc_blocks = (group_desc_count +
950 rsv_groups = ext2fs_div64_ceil(resize, bpg);
951 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
953 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
954 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
957 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
958 fprintf(stderr, "%s",
959 _("On-line resizing not supported with revision 0 filesystems\n"));
963 ext2fs_set_feature_resize_inode(param);
965 param->s_reserved_gdt_blocks = rsv_gdb;
967 } else if (!strcmp(token, "test_fs")) {
968 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
969 } else if (!strcmp(token, "lazy_itable_init")) {
971 lazy_itable_init = strtoul(arg, &p, 0);
973 lazy_itable_init = 1;
974 } else if (!strcmp(token, "lazy_journal_init")) {
976 journal_flags |= strtoul(arg, &p, 0) ?
977 EXT2_MKJOURNAL_LAZYINIT : 0;
979 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
980 } else if (!strcmp(token, "root_owner")) {
982 root_uid = strtoul(arg, &p, 0);
985 _("Invalid root_owner: '%s'\n"),
991 root_gid = strtoul(p, &p, 0);
994 _("Invalid root_owner: '%s'\n"),
1000 root_uid = getuid();
1001 root_gid = getgid();
1003 } else if (!strcmp(token, "discard")) {
1005 } else if (!strcmp(token, "nodiscard")) {
1007 } else if (!strcmp(token, "quotatype")) {
1008 char *errtok = NULL;
1016 ret = parse_quota_types(arg, "atype_bits, &errtok);
1020 "Failed to parse quota type at %s", errtok);
1023 com_err(program_name, ret,
1024 "while parsing quota type");
1035 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1036 "Extended options are separated by commas, "
1037 "and may take an argument which\n"
1038 "\tis set off by an equals ('=') sign.\n\n"
1039 "Valid extended options are:\n"
1040 "\tmmp_update_interval=<interval>\n"
1041 "\tnum_backup_sb=<0|1|2>\n"
1042 "\tstride=<RAID per-disk data chunk in blocks>\n"
1043 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1044 "\toffset=<offset to create the file system>\n"
1045 "\tresize=<resize maximum size in blocks>\n"
1046 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1047 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1048 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1049 "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1053 "\tquotatype=<quota type(s) to be enabled>\n\n"),
1054 badopt ? badopt : "");
1058 if (param->s_raid_stride &&
1059 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1060 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1061 "multiple of stride %u.\n\n"),
1062 param->s_raid_stripe_width, param->s_raid_stride);
1067 static __u32 ok_features[3] = {
1069 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1070 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1071 EXT2_FEATURE_COMPAT_DIR_INDEX |
1072 EXT2_FEATURE_COMPAT_EXT_ATTR |
1073 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1075 EXT2_FEATURE_INCOMPAT_FILETYPE|
1076 EXT3_FEATURE_INCOMPAT_EXTENTS|
1077 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1078 EXT2_FEATURE_INCOMPAT_META_BG|
1079 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1080 EXT4_FEATURE_INCOMPAT_MMP |
1081 EXT4_FEATURE_INCOMPAT_64BIT|
1082 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1083 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1084 EXT4_FEATURE_INCOMPAT_CSUM_SEED,
1086 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1087 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1088 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1089 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1090 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1091 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1092 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1093 EXT4_FEATURE_RO_COMPAT_QUOTA|
1094 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1095 EXT4_FEATURE_RO_COMPAT_PROJECT
1099 static void syntax_err_report(const char *filename, long err, int line_num)
1102 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1103 filename, line_num, error_message(err));
1107 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1109 static void edit_feature(const char *str, __u32 *compat_array)
1114 if (e2p_edit_feature(str, compat_array, ok_features)) {
1115 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1121 static void edit_mntopts(const char *str, __u32 *mntopts)
1126 if (e2p_edit_mntopts(str, mntopts, ~0)) {
1127 fprintf(stderr, _("Invalid mount option set: %s\n"),
1139 static errcode_t init_list(struct str_list *sl)
1143 sl->list = malloc((sl->max+1) * sizeof(char *));
1150 static errcode_t push_string(struct str_list *sl, const char *str)
1154 if (sl->num >= sl->max) {
1156 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1159 sl->list = new_list;
1161 sl->list[sl->num] = malloc(strlen(str)+1);
1162 if (sl->list[sl->num] == 0)
1164 strcpy(sl->list[sl->num], str);
1166 sl->list[sl->num] = 0;
1170 static void print_str_list(char **list)
1174 for (cpp = list; *cpp; cpp++) {
1175 printf("'%s'", *cpp);
1177 fputs(", ", stdout);
1179 fputc('\n', stdout);
1183 * Return TRUE if the profile has the given subsection
1185 static int profile_has_subsection(profile_t prof, const char *section,
1186 const char *subsection)
1189 const char *names[4];
1194 names[1] = subsection;
1197 if (profile_iterator_create(prof, names,
1198 PROFILE_ITER_LIST_SECTION |
1199 PROFILE_ITER_RELATIONS_ONLY, &state))
1202 if ((profile_iterator(&state, &name, 0) == 0) && name) {
1207 profile_iterator_free(&state);
1211 static char **parse_fs_type(const char *fs_type,
1212 const char *usage_types,
1213 struct ext2_super_block *sb,
1214 blk64_t fs_blocks_count,
1217 const char *ext_type = 0;
1219 char *profile_type = 0;
1221 const char *size_type;
1222 struct str_list list;
1223 unsigned long long meg;
1224 int is_hurd = for_hurd(creator_os);
1226 if (init_list(&list))
1233 else if (!strcmp(program_name, "mke3fs"))
1235 else if (!strcmp(program_name, "mke4fs"))
1237 else if (progname) {
1238 ext_type = strrchr(progname, '/');
1242 ext_type = progname;
1244 if (!strncmp(ext_type, "mkfs.", 5)) {
1246 if (ext_type[0] == 0)
1253 profile_get_string(profile, "defaults", "fs_type", 0,
1254 "ext2", &profile_type);
1255 ext_type = profile_type;
1256 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1261 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1262 strcmp(ext_type, "ext2")) {
1263 printf(_("\nYour mke2fs.conf file does not define the "
1264 "%s filesystem type.\n"), ext_type);
1265 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1266 !strcmp(ext_type, "ext4dev")) {
1267 printf("%s", _("You probably need to install an "
1268 "updated mke2fs.conf file.\n\n"));
1271 printf("%s", _("Aborting...\n"));
1276 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1277 if (fs_blocks_count < 3 * meg)
1278 size_type = "floppy";
1279 else if (fs_blocks_count < 512 * meg)
1280 size_type = "small";
1281 else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1282 size_type = "default";
1283 else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1289 usage_types = size_type;
1291 parse_str = malloc(strlen(usage_types)+1);
1297 strcpy(parse_str, usage_types);
1300 push_string(&list, ext_type);
1303 t = strchr(cp, ',');
1308 if (profile_has_subsection(profile, "fs_types", cp))
1309 push_string(&list, cp);
1310 else if (strcmp(cp, "default") != 0)
1312 _("\nWarning: the fs_type %s is not "
1313 "defined in mke2fs.conf\n\n"),
1324 push_string(&list, "hurd");
1328 char *get_string_from_profile(char **types, const char *opt,
1329 const char *def_val)
1334 for (i=0; types[i]; i++);
1335 for (i-=1; i >=0 ; i--) {
1336 profile_get_string(profile, "fs_types", types[i],
1341 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1345 int get_int_from_profile(char **types, const char *opt, int def_val)
1350 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1351 for (cpp = types; *cpp; cpp++)
1352 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1356 static unsigned int get_uint_from_profile(char **types, const char *opt,
1357 unsigned int def_val)
1362 profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1363 for (cpp = types; *cpp; cpp++)
1364 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1368 static double get_double_from_profile(char **types, const char *opt,
1374 profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1375 for (cpp = types; *cpp; cpp++)
1376 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1380 int get_bool_from_profile(char **types, const char *opt, int def_val)
1385 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1386 for (cpp = types; *cpp; cpp++)
1387 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1391 extern const char *mke2fs_default_profile;
1392 static const char *default_files[] = { "<default>", 0 };
1394 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1396 * Sets the geometry of a device (stripe/stride), and returns the
1397 * device's alignment offset, if any, or a negative error.
1399 static int get_device_geometry(const char *file,
1400 struct ext2_super_block *param,
1401 unsigned int psector_size)
1404 unsigned int blocksize;
1407 unsigned long min_io;
1408 unsigned long opt_io;
1409 struct stat statbuf;
1411 /* Nothing to do for a regular file */
1412 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1415 pr = blkid_new_probe_from_filename(file);
1419 tp = blkid_probe_get_topology(pr);
1423 min_io = blkid_topology_get_minimum_io_size(tp);
1424 opt_io = blkid_topology_get_optimal_io_size(tp);
1425 blocksize = EXT2_BLOCK_SIZE(param);
1426 if ((min_io == 0) && (psector_size > blocksize))
1427 min_io = psector_size;
1428 if ((opt_io == 0) && min_io)
1430 if ((opt_io == 0) && (psector_size > blocksize))
1431 opt_io = psector_size;
1433 /* setting stripe/stride to blocksize is pointless */
1434 if (min_io > blocksize)
1435 param->s_raid_stride = min_io / blocksize;
1436 if (opt_io > blocksize)
1437 param->s_raid_stripe_width = opt_io / blocksize;
1439 rc = blkid_topology_get_alignment_offset(tp);
1441 blkid_free_probe(pr);
1446 static void PRS(int argc, char *argv[])
1449 int cluster_size = 0;
1451 int explicit_fssize = 0;
1453 int inode_ratio = 0;
1455 unsigned long flex_bg_size = 0;
1456 double reserved_ratio = -1.0;
1457 int lsector_size = 0, psector_size = 0;
1458 int show_version_only = 0, is_device = 0;
1459 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1461 char * oldpath = getenv("PATH");
1462 char * extended_opts = 0;
1464 char * usage_types = 0;
1466 * NOTE: A few words about fs_blocks_count and blocksize:
1468 * Initially, blocksize is set to zero, which implies 1024.
1469 * If -b is specified, blocksize is updated to the user's value.
1471 * Next, the device size or the user's "blocks" command line argument
1472 * is used to set fs_blocks_count; the units are blocksize.
1474 * Later, if blocksize hasn't been set and the profile specifies a
1475 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1476 * appropriately. Note the change in units!
1478 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1480 blk64_t fs_blocks_count = 0;
1482 int s_opt = -1, r_opt = -1;
1483 char *fs_features = 0;
1484 int fs_features_size = 0;
1487 int pathlen = sizeof(PATH_SET) + 1;
1490 pathlen += strlen(oldpath);
1491 newpath = malloc(pathlen);
1493 fprintf(stderr, "%s",
1494 _("Couldn't allocate memory for new PATH.\n"));
1497 strcpy(newpath, PATH_SET);
1499 /* Update our PATH to include /sbin */
1501 strcat (newpath, ":");
1502 strcat (newpath, oldpath);
1506 tmp = getenv("MKE2FS_SYNC");
1508 sync_kludge = atoi(tmp);
1510 /* Determine the system page size if possible */
1512 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1513 #define _SC_PAGESIZE _SC_PAGE_SIZE
1516 sysval = sysconf(_SC_PAGESIZE);
1518 sys_page_size = sysval;
1519 #endif /* _SC_PAGESIZE */
1520 #endif /* HAVE_SYSCONF */
1522 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1524 profile_set_syntax_err_cb(syntax_err_report);
1525 retval = profile_init(config_fn, &profile);
1526 if (retval == ENOENT) {
1527 retval = profile_init(default_files, &profile);
1530 retval = profile_set_default(profile, mke2fs_default_profile);
1533 } else if (retval) {
1535 fprintf(stderr, _("Couldn't init profile successfully"
1536 " (error: %ld).\n"), retval);
1540 setbuf(stdout, NULL);
1541 setbuf(stderr, NULL);
1542 add_error_table(&et_ext2_error_table);
1543 add_error_table(&et_prof_error_table);
1544 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1545 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1547 if (is_before_linux_ver(2, 2, 0))
1548 fs_param.s_rev_level = 0;
1550 if (argc && *argv) {
1551 program_name = get_progname(*argv);
1553 /* If called as mkfs.ext3, create a journal inode */
1554 if (!strcmp(program_name, "mkfs.ext3") ||
1555 !strcmp(program_name, "mke3fs"))
1559 while ((c = getopt (argc, argv,
1560 "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) {
1563 blocksize = parse_num_blocks2(optarg, -1);
1564 b = (blocksize > 0) ? blocksize : -blocksize;
1565 if (b < EXT2_MIN_BLOCK_SIZE ||
1566 b > EXT2_MAX_BLOCK_SIZE) {
1567 com_err(program_name, 0,
1568 _("invalid block size - %s"), optarg);
1571 if (blocksize > 4096)
1572 fprintf(stderr, _("Warning: blocksize %d not "
1573 "usable on most systems.\n"),
1576 fs_param.s_log_block_size =
1577 int_log2(blocksize >>
1578 EXT2_MIN_BLOCK_LOG_SIZE);
1580 case 'c': /* Check for bad blocks */
1584 cluster_size = parse_num_blocks2(optarg, -1);
1585 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1586 cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1587 com_err(program_name, 0,
1588 _("invalid cluster size - %s"),
1594 src_root_dir = optarg;
1600 com_err(program_name, 0, "%s",
1601 _("'-R' is deprecated, use '-E' instead"));
1604 extended_opts = optarg;
1607 if (strcmp(optarg, "continue") == 0)
1608 errors_behavior = EXT2_ERRORS_CONTINUE;
1609 else if (strcmp(optarg, "remount-ro") == 0)
1610 errors_behavior = EXT2_ERRORS_RO;
1611 else if (strcmp(optarg, "panic") == 0)
1612 errors_behavior = EXT2_ERRORS_PANIC;
1614 com_err(program_name, 0,
1615 _("bad error behavior - %s"),
1624 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1626 com_err(program_name, 0, "%s",
1627 _("Illegal number for blocks per group"));
1630 if ((fs_param.s_blocks_per_group % 8) != 0) {
1631 com_err(program_name, 0, "%s",
1632 _("blocks per group must be multiple of 8"));
1637 flex_bg_size = strtoul(optarg, &tmp, 0);
1639 com_err(program_name, 0, "%s",
1640 _("Illegal number for flex_bg size"));
1643 if (flex_bg_size < 1 ||
1644 (flex_bg_size & (flex_bg_size-1)) != 0) {
1645 com_err(program_name, 0, "%s",
1646 _("flex_bg size must be a power of 2"));
1649 if (flex_bg_size > MAX_32_NUM) {
1650 com_err(program_name, 0,
1651 _("flex_bg size (%lu) must be less than"
1652 " or equal to 2^31"), flex_bg_size);
1657 inode_ratio = parse_num_blocks(optarg, -1);
1658 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1659 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1660 com_err(program_name, 0,
1661 _("invalid inode ratio %s (min %d/max %d)"),
1662 optarg, EXT2_MIN_BLOCK_SIZE,
1663 EXT2_MAX_BLOCK_SIZE * 1024);
1668 inode_size = strtoul(optarg, &tmp, 0);
1670 com_err(program_name, 0,
1671 _("invalid inode size - %s"), optarg);
1680 parse_journal_opts(optarg);
1683 fprintf(stderr, "%s",
1684 _("Warning: -K option is deprecated and "
1685 "should not be used anymore. Use "
1686 "\'-E nodiscard\' extended option "
1691 bad_blocks_filename = realloc(bad_blocks_filename,
1692 strlen(optarg) + 1);
1693 if (!bad_blocks_filename) {
1694 com_err(program_name, ENOMEM, "%s",
1695 _("in malloc for bad_blocks_filename"));
1698 strcpy(bad_blocks_filename, optarg);
1701 volume_label = optarg;
1702 if (strlen(volume_label) > EXT2_LABEL_LEN) {
1703 volume_label[EXT2_LABEL_LEN] = '\0';
1704 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1709 reserved_ratio = strtod(optarg, &tmp);
1710 if ( *tmp || reserved_ratio > 50 ||
1711 reserved_ratio < 0) {
1712 com_err(program_name, 0,
1713 _("invalid reserved blocks percent - %s"),
1725 num_inodes = strtoul(optarg, &tmp, 0);
1727 com_err(program_name, 0,
1728 _("bad num inodes - %s"), optarg);
1733 creator_os = optarg;
1736 retval = ext2fs_resize_mem(fs_features_size,
1737 fs_features_size + 1 + strlen(optarg),
1740 com_err(program_name, retval,
1741 _("while allocating fs_feature string"));
1744 if (fs_features_size)
1745 strcat(fs_features, ",");
1748 strcat(fs_features, optarg);
1749 fs_features_size += 1 + strlen(optarg);
1755 r_opt = strtoul(optarg, &tmp, 0);
1757 com_err(program_name, 0,
1758 _("bad revision level - %s"), optarg);
1761 if (r_opt > EXT2_MAX_SUPP_REV) {
1762 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1763 _("while trying to create revision %d"), r_opt);
1766 fs_param.s_rev_level = r_opt;
1768 case 's': /* deprecated */
1769 s_opt = atoi(optarg);
1776 com_err(program_name, 0, "%s",
1777 _("The -t option may only be used once"));
1780 fs_type = strdup(optarg);
1784 com_err(program_name, 0, "%s",
1785 _("The -T option may only be used once"));
1788 usage_types = strdup(optarg);
1797 /* Print version number and exit */
1798 show_version_only++;
1807 if ((optind == argc) && !show_version_only)
1809 device_name = argv[optind++];
1811 if (!quiet || show_version_only)
1812 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1815 if (show_version_only) {
1816 fprintf(stderr, _("\tUsing %s\n"),
1817 error_message(EXT2_ET_BASE));
1822 * If there's no blocksize specified and there is a journal
1823 * device, use it to figure out the blocksize
1825 if (blocksize <= 0 && journal_device) {
1829 #ifdef CONFIG_TESTIO_DEBUG
1830 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1831 io_ptr = test_io_manager;
1832 test_io_backing_manager = unix_io_manager;
1835 io_ptr = unix_io_manager;
1836 retval = ext2fs_open(journal_device,
1837 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1840 com_err(program_name, retval,
1841 _("while trying to open journal device %s\n"),
1845 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1846 com_err(program_name, 0,
1847 _("Journal dev blocksize (%d) smaller than "
1848 "minimum blocksize %d\n"), jfs->blocksize,
1852 blocksize = jfs->blocksize;
1853 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1854 fs_param.s_log_block_size =
1855 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1856 ext2fs_close_free(&jfs);
1859 if (optind < argc) {
1860 fs_blocks_count = parse_num_blocks2(argv[optind++],
1861 fs_param.s_log_block_size);
1862 if (!fs_blocks_count) {
1863 com_err(program_name, 0,
1864 _("invalid blocks '%s' on device '%s'"),
1865 argv[optind - 1], device_name);
1872 profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1875 /* The isatty() test is so we don't break existing scripts */
1876 flags = CREATE_FILE;
1877 if (isatty(0) && isatty(1) && !offset)
1878 flags |= CHECK_FS_EXIST;
1880 flags |= VERBOSE_CREATE;
1881 if (fs_blocks_count == 0)
1884 explicit_fssize = 1;
1885 if (!check_plausibility(device_name, flags, &is_device) && !force)
1886 proceed_question(proceed_delay);
1888 check_mount(device_name, force, _("filesystem"));
1890 /* Determine the size of the device (if possible) */
1891 if (noaction && fs_blocks_count) {
1892 dev_size = fs_blocks_count;
1895 retval = ext2fs_get_device_size2(device_name,
1896 EXT2_BLOCK_SIZE(&fs_param),
1899 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1900 com_err(program_name, retval, "%s",
1901 _("while trying to determine filesystem size"));
1904 if (!fs_blocks_count) {
1905 if (retval == EXT2_ET_UNIMPLEMENTED) {
1906 com_err(program_name, 0, "%s",
1907 _("Couldn't determine device size; you "
1908 "must specify\nthe size of the "
1912 if (dev_size == 0) {
1913 com_err(program_name, 0, "%s",
1914 _("Device size reported to be zero. "
1915 "Invalid partition specified, or\n\t"
1916 "partition table wasn't reread "
1917 "after running fdisk, due to\n\t"
1918 "a modified partition being busy "
1919 "and in use. You may need to reboot\n\t"
1920 "to re-read your partition table.\n"
1924 fs_blocks_count = dev_size;
1925 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1926 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1927 EXT2_BLOCK_SIZE(&fs_param))-1));
1929 } else if (!force && is_device && (fs_blocks_count > dev_size)) {
1930 com_err(program_name, 0, "%s",
1931 _("Filesystem larger than apparent device size."));
1932 proceed_question(proceed_delay);
1936 profile_get_string(profile, "devices", device_name,
1937 "fs_type", 0, &fs_type);
1939 profile_get_string(profile, "devices", device_name,
1940 "usage_types", 0, &usage_types);
1943 * We have the file system (or device) size, so we can now
1944 * determine the appropriate file system types so the fs can
1945 * be appropriately configured.
1947 fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1948 fs_blocks_count ? fs_blocks_count : dev_size,
1951 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
1955 /* Figure out what features should be enabled */
1958 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1959 tmp = get_string_from_profile(fs_types, "base_features",
1960 "sparse_super,large_file,filetype,resize_inode,dir_index");
1961 edit_feature(tmp, &fs_param.s_feature_compat);
1964 /* And which mount options as well */
1965 tmp = get_string_from_profile(fs_types, "default_mntopts",
1967 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1971 for (cpp = fs_types; *cpp; cpp++) {
1973 profile_get_string(profile, "fs_types", *cpp,
1974 "features", "", &tmp);
1976 edit_feature(tmp, &fs_param.s_feature_compat);
1980 tmp = get_string_from_profile(fs_types, "default_features",
1983 /* Mask off features which aren't supported by the Hurd */
1984 if (for_hurd(creator_os)) {
1985 ext2fs_clear_feature_filetype(&fs_param);
1986 ext2fs_clear_feature_huge_file(&fs_param);
1987 ext2fs_clear_feature_metadata_csum(&fs_param);
1989 edit_feature(fs_features ? fs_features : tmp,
1990 &fs_param.s_feature_compat);
1993 (void) ext2fs_free_mem(&fs_features);
1995 * If the user specified features incompatible with the Hurd, complain
1997 if (for_hurd(creator_os)) {
1998 if (ext2fs_has_feature_filetype(&fs_param)) {
1999 fprintf(stderr, "%s", _("The HURD does not support the "
2000 "filetype feature.\n"));
2003 if (ext2fs_has_feature_huge_file(&fs_param)) {
2004 fprintf(stderr, "%s", _("The HURD does not support the "
2005 "huge_file feature.\n"));
2008 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2009 fprintf(stderr, "%s", _("The HURD does not support the "
2010 "metadata_csum feature.\n"));
2015 /* Get the hardware sector sizes, if available */
2016 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2018 com_err(program_name, retval, "%s",
2019 _("while trying to determine hardware sector size"));
2022 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2024 com_err(program_name, retval, "%s",
2025 _("while trying to determine physical sector size"));
2029 tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2031 lsector_size = atoi(tmp);
2032 tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2034 psector_size = atoi(tmp);
2036 /* Older kernels may not have physical/logical distinction */
2038 psector_size = lsector_size;
2040 if (blocksize <= 0) {
2041 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2043 if (use_bsize == -1) {
2044 use_bsize = sys_page_size;
2045 if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2048 if (lsector_size && use_bsize < lsector_size)
2049 use_bsize = lsector_size;
2050 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2051 use_bsize = -blocksize;
2052 blocksize = use_bsize;
2053 fs_blocks_count /= (blocksize / 1024);
2055 if (blocksize < lsector_size) { /* Impossible */
2056 com_err(program_name, EINVAL, "%s",
2057 _("while setting blocksize; too small "
2060 } else if ((blocksize < psector_size) &&
2061 (psector_size <= sys_page_size)) { /* Suboptimal */
2062 fprintf(stderr, _("Warning: specified blocksize %d is "
2063 "less than device physical sectorsize %d\n"),
2064 blocksize, psector_size);
2068 fs_param.s_log_block_size =
2069 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2072 * We now need to do a sanity check of fs_blocks_count for
2073 * 32-bit vs 64-bit block number support.
2075 if ((fs_blocks_count > MAX_32_NUM) &&
2076 ext2fs_has_feature_64bit(&fs_param))
2077 ext2fs_clear_feature_resize_inode(&fs_param);
2078 if ((fs_blocks_count > MAX_32_NUM) &&
2079 !ext2fs_has_feature_64bit(&fs_param) &&
2080 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2081 ext2fs_set_feature_64bit(&fs_param);
2082 ext2fs_clear_feature_resize_inode(&fs_param);
2084 if ((fs_blocks_count > MAX_32_NUM) &&
2085 !ext2fs_has_feature_64bit(&fs_param)) {
2086 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2087 "too big to be expressed\n\t"
2088 "in 32 bits using a blocksize of %d.\n"),
2089 program_name, fs_blocks_count, device_name,
2090 EXT2_BLOCK_SIZE(&fs_param));
2094 * Guard against group descriptor count overflowing... Mostly to avoid
2095 * strange results for absurdly large devices.
2097 if (fs_blocks_count > ((1ULL << (fs_param.s_log_block_size + 3 + 32)) - 1)) {
2098 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2099 "too big to create\n\t"
2100 "a filesystem using a blocksize of %d.\n"),
2101 program_name, fs_blocks_count, device_name,
2102 EXT2_BLOCK_SIZE(&fs_param));
2106 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2108 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2111 for (i=0; fs_types[i]; i++) {
2115 fs_types[0] = strdup("journal");
2120 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2121 print_str_list(fs_types);
2124 if (r_opt == EXT2_GOOD_OLD_REV &&
2125 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2126 fs_param.s_feature_ro_compat)) {
2127 fprintf(stderr, "%s", _("Filesystem features not supported "
2128 "with revision 0 filesystems\n"));
2133 if (r_opt == EXT2_GOOD_OLD_REV) {
2134 fprintf(stderr, "%s",
2135 _("Sparse superblocks not supported "
2136 "with revision 0 filesystems\n"));
2139 ext2fs_set_feature_sparse_super(&fs_param);
2140 } else if (s_opt == 0)
2141 ext2fs_clear_feature_sparse_super(&fs_param);
2143 if (journal_size != 0) {
2144 if (r_opt == EXT2_GOOD_OLD_REV) {
2145 fprintf(stderr, "%s", _("Journals not supported with "
2146 "revision 0 filesystems\n"));
2149 ext2fs_set_feature_journal(&fs_param);
2152 /* Get reserved_ratio from profile if not specified on cmd line. */
2153 if (reserved_ratio < 0.0) {
2154 reserved_ratio = get_double_from_profile(
2155 fs_types, "reserved_ratio", 5.0);
2156 if (reserved_ratio > 50 || reserved_ratio < 0) {
2157 com_err(program_name, 0,
2158 _("invalid reserved blocks percent - %lf"),
2164 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2166 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2167 fs_param.s_feature_compat = 0;
2168 fs_param.s_feature_ro_compat &=
2169 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2172 /* Check the user's mkfs options for 64bit */
2173 if (ext2fs_has_feature_64bit(&fs_param) &&
2174 !ext2fs_has_feature_extents(&fs_param)) {
2175 printf("%s", _("Extents MUST be enabled for a 64-bit "
2176 "filesystem. Pass -O extents to rectify.\n"));
2180 /* Set first meta blockgroup via an environment variable */
2181 /* (this is mostly for debugging purposes) */
2182 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2183 (tmp = getenv("MKE2FS_FIRST_META_BG")))
2184 fs_param.s_first_meta_bg = atoi(tmp);
2185 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2187 cluster_size = get_int_from_profile(fs_types,
2190 fs_param.s_log_cluster_size =
2191 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2192 if (fs_param.s_log_cluster_size &&
2193 fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2194 com_err(program_name, 0, "%s",
2195 _("The cluster size may not be "
2196 "smaller than the block size.\n"));
2199 } else if (cluster_size) {
2200 com_err(program_name, 0, "%s",
2201 _("specifying a cluster size requires the "
2202 "bigalloc feature"));
2205 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2207 if (inode_ratio == 0) {
2208 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2210 if (inode_ratio < blocksize)
2211 inode_ratio = blocksize;
2212 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2213 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2216 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2217 retval = get_device_geometry(device_name, &fs_param,
2218 (unsigned int) psector_size);
2221 _("warning: Unable to get device geometry for %s\n"),
2223 } else if (retval) {
2224 printf(_("%s alignment is offset by %lu bytes.\n"),
2225 device_name, retval);
2226 printf(_("This may result in very poor performance, "
2227 "(re)-partitioning suggested.\n"));
2231 num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2233 blocksize = EXT2_BLOCK_SIZE(&fs_param);
2236 * Initialize s_desc_size so that the parse_extended_opts()
2237 * can correctly handle "-E resize=NNN" if the 64-bit option
2240 if (ext2fs_has_feature_64bit(&fs_param))
2241 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2243 /* This check should happen beyond the last assignment to blocksize */
2244 if (blocksize > sys_page_size) {
2246 com_err(program_name, 0,
2247 _("%d-byte blocks too big for system (max %d)"),
2248 blocksize, sys_page_size);
2249 proceed_question(proceed_delay);
2251 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2252 "(max %d), forced to continue\n"),
2253 blocksize, sys_page_size);
2256 /* Metadata checksumming wasn't totally stable before 3.18. */
2257 if (is_before_linux_ver(3, 18, 0) &&
2258 ext2fs_has_feature_metadata_csum(&fs_param))
2259 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2260 "improved stability of the metadata and journal "
2261 "checksum features.\n"));
2264 * On newer kernels we do have lazy_itable_init support. So pick the
2265 * right default in case ext4 module is not loaded.
2267 if (is_before_linux_ver(2, 6, 37))
2268 lazy_itable_init = 0;
2270 lazy_itable_init = 1;
2272 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2273 lazy_itable_init = 1;
2275 lazy_itable_init = get_bool_from_profile(fs_types,
2278 discard = get_bool_from_profile(fs_types, "discard" , discard);
2279 journal_flags |= get_bool_from_profile(fs_types,
2280 "lazy_journal_init", 0) ?
2281 EXT2_MKJOURNAL_LAZYINIT : 0;
2282 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2284 if (!journal_location_string)
2285 journal_location_string = get_string_from_profile(fs_types,
2286 "journal_location", "");
2287 if ((journal_location == ~0ULL) && journal_location_string &&
2288 *journal_location_string)
2289 journal_location = parse_num_blocks2(journal_location_string,
2290 fs_param.s_log_block_size);
2291 free(journal_location_string);
2293 packed_meta_blocks = get_bool_from_profile(fs_types,
2294 "packed_meta_blocks", 0);
2295 if (packed_meta_blocks)
2296 journal_location = 0;
2298 /* Get options from profile */
2299 for (cpp = fs_types; *cpp; cpp++) {
2301 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2303 parse_extended_opts(&fs_param, tmp);
2308 parse_extended_opts(&fs_param, extended_opts);
2310 if (explicit_fssize == 0 && offset > 0) {
2311 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2312 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2314 _("\nWarning: offset specified without an "
2315 "explicit file system size.\n"
2316 "Creating a file system with %llu blocks "
2318 "not be what you want.\n\n"),
2319 (unsigned long long) fs_blocks_count);
2322 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2323 if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2324 ext2fs_has_feature_gdt_csum(&fs_param))
2325 ext2fs_clear_feature_gdt_csum(&fs_param);
2327 /* Can't support bigalloc feature without extents feature */
2328 if (ext2fs_has_feature_bigalloc(&fs_param) &&
2329 !ext2fs_has_feature_extents(&fs_param)) {
2330 com_err(program_name, 0, "%s",
2331 _("Can't support bigalloc feature without "
2332 "extents feature"));
2336 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2337 ext2fs_has_feature_resize_inode(&fs_param)) {
2338 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2339 "features are not compatible.\n"
2340 "They can not be both enabled "
2341 "simultaneously.\n"));
2345 if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2346 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2347 "still under development\n"
2348 "See https://ext4.wiki.kernel.org/"
2349 "index.php/Bigalloc for more information\n\n"));
2352 * Since sparse_super is the default, we would only have a problem
2353 * here if it was explicitly disabled.
2355 if (ext2fs_has_feature_resize_inode(&fs_param) &&
2356 !ext2fs_has_feature_sparse_super(&fs_param)) {
2357 com_err(program_name, 0, "%s",
2358 _("reserved online resize blocks not supported "
2359 "on non-sparse filesystem"));
2363 if (fs_param.s_blocks_per_group) {
2364 if (fs_param.s_blocks_per_group < 256 ||
2365 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2366 com_err(program_name, 0, "%s",
2367 _("blocks per group count out of range"));
2373 * If the bigalloc feature is enabled, then the -g option will
2374 * specify the number of clusters per group.
2376 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2377 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2378 fs_param.s_blocks_per_group = 0;
2381 if (inode_size == 0)
2382 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2383 if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2384 flex_bg_size = get_uint_from_profile(fs_types,
2385 "flex_bg_size", 16);
2387 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2388 com_err(program_name, 0, "%s",
2389 _("Flex_bg feature not enabled, so "
2390 "flex_bg size may not be specified"));
2393 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2396 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2397 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2398 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2399 inode_size & (inode_size - 1)) {
2400 com_err(program_name, 0,
2401 _("invalid inode size %d (min %d/max %d)"),
2402 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2406 fs_param.s_inode_size = inode_size;
2410 * If inode size is 128 and inline data is enabled, we need
2411 * to notify users that inline data will never be useful.
2413 if (ext2fs_has_feature_inline_data(&fs_param) &&
2414 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2415 com_err(program_name, 0,
2416 _("%d byte inodes are too small for inline data; "
2417 "specify larger size"),
2418 fs_param.s_inode_size);
2423 * If inode size is 128 and project quota is enabled, we need
2424 * to notify users that project ID will never be useful.
2426 if (ext2fs_has_feature_project(&fs_param) &&
2427 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2428 com_err(program_name, 0,
2429 _("%d byte inodes are too small for project quota; "
2430 "specify larger size"),
2431 fs_param.s_inode_size);
2435 /* Make sure number of inodes specified will fit in 32 bits */
2436 if (num_inodes == 0) {
2437 unsigned long long n;
2438 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2439 if (n > MAX_32_NUM) {
2440 if (ext2fs_has_feature_64bit(&fs_param))
2441 num_inodes = MAX_32_NUM;
2443 com_err(program_name, 0,
2444 _("too many inodes (%llu), raise "
2445 "inode ratio?"), n);
2449 } else if (num_inodes > MAX_32_NUM) {
2450 com_err(program_name, 0,
2451 _("too many inodes (%llu), specify < 2^32 inodes"),
2456 * Calculate number of inodes based on the inode ratio
2458 fs_param.s_inodes_count = num_inodes ? num_inodes :
2459 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2461 if ((((unsigned long long)fs_param.s_inodes_count) *
2462 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2463 ((ext2fs_blocks_count(&fs_param)) *
2464 EXT2_BLOCK_SIZE(&fs_param))) {
2465 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2466 "(%u) too big for a\n\t"
2467 "filesystem with %llu blocks, "
2468 "specify higher inode_ratio (-i)\n\t"
2469 "or lower inode count (-N).\n"),
2470 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2471 fs_param.s_inodes_count,
2472 (unsigned long long) ext2fs_blocks_count(&fs_param));
2477 * Calculate number of blocks to reserve
2479 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2480 ext2fs_blocks_count(&fs_param) / 100.0);
2482 if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2483 if (num_backups >= 1)
2484 fs_param.s_backup_bgs[0] = 1;
2485 if (num_backups >= 2)
2486 fs_param.s_backup_bgs[1] = ~0;
2493 static int should_do_undo(const char *name)
2498 struct ext2_super_block super;
2499 io_manager manager = unix_io_manager;
2500 int csum_flag, force_undo;
2502 csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2503 ext2fs_has_feature_gdt_csum(&fs_param);
2504 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2505 if (!force_undo && (!csum_flag || !lazy_itable_init))
2508 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
2511 * We don't handle error cases instead we
2512 * declare that the file system doesn't exist
2513 * and let the rest of mke2fs take care of
2520 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2521 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2527 #if defined(WORDS_BIGENDIAN)
2528 s_magic = ext2fs_swab16(super.s_magic);
2530 s_magic = super.s_magic;
2533 if (s_magic == EXT2_SUPER_MAGIC)
2537 io_channel_close(channel);
2544 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2546 errcode_t retval = ENOMEM;
2547 char *tdb_dir = NULL, *tdb_file = NULL;
2548 char *dev_name, *tmp_name;
2549 int free_tdb_dir = 0;
2551 /* (re)open a specific undo file */
2552 if (undo_file && undo_file[0] != 0) {
2553 retval = set_undo_io_backing_manager(*io_ptr);
2556 *io_ptr = undo_io_manager;
2557 retval = set_undo_io_backup_file(undo_file);
2560 printf(_("Overwriting existing filesystem; this can be undone "
2561 "using the command:\n"
2562 " e2undo %s %s\n\n"), undo_file, name);
2567 * Configuration via a conf file would be
2570 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2572 profile_get_string(profile, "defaults",
2573 "undo_dir", 0, "/var/lib/e2fsprogs",
2578 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2579 access(tdb_dir, W_OK)) {
2585 tmp_name = strdup(name);
2588 dev_name = basename(tmp_name);
2589 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2594 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2597 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2599 com_err(program_name, retval,
2600 _("while trying to delete %s"), tdb_file);
2604 retval = set_undo_io_backing_manager(*io_ptr);
2607 *io_ptr = undo_io_manager;
2608 retval = set_undo_io_backup_file(tdb_file);
2611 printf(_("Overwriting existing filesystem; this can be undone "
2612 "using the command:\n"
2613 " e2undo %s %s\n\n"), tdb_file, name);
2625 com_err(program_name, retval, "%s",
2626 _("while trying to setup undo file\n"));
2630 static int mke2fs_discard_device(ext2_filsys fs)
2632 struct ext2fs_numeric_progress_struct progress;
2633 blk64_t blocks = ext2fs_blocks_count(fs->super);
2634 blk64_t count = DISCARD_STEP_MB;
2639 * Let's try if discard really works on the device, so
2640 * we do not print numeric progress resulting in failure
2643 retval = io_channel_discard(fs->io, 0, fs->blocksize);
2646 cur = fs->blocksize;
2648 count *= (1024 * 1024);
2649 count /= fs->blocksize;
2651 ext2fs_numeric_progress_init(fs, &progress,
2652 _("Discarding device blocks: "),
2654 while (cur < blocks) {
2655 ext2fs_numeric_progress_update(fs, &progress, cur);
2657 if (cur + count > blocks)
2658 count = blocks - cur;
2660 retval = io_channel_discard(fs->io, cur, count);
2667 ext2fs_numeric_progress_close(fs, &progress,
2670 printf("%s\n",error_message(retval));
2672 ext2fs_numeric_progress_close(fs, &progress,
2678 static void fix_cluster_bg_counts(ext2_filsys fs)
2680 blk64_t block, num_blocks, last_block, next;
2681 blk64_t tot_free = 0;
2686 num_blocks = ext2fs_blocks_count(fs->super);
2687 last_block = ext2fs_group_last_block2(fs, group);
2688 block = fs->super->s_first_data_block;
2689 while (block < num_blocks) {
2690 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2691 block, last_block, &next);
2695 block = last_block + 1;
2699 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2700 block, last_block, &next);
2702 next = last_block + 1;
2703 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2704 tot_free += next - block;
2707 if (block > last_block) {
2709 ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2710 ext2fs_group_desc_csum_set(fs, group);
2713 last_block = ext2fs_group_last_block2(fs, group);
2716 ext2fs_free_blocks_count_set(fs->super, tot_free);
2719 static int create_quota_inodes(ext2_filsys fs)
2724 retval = quota_init_context(&qctx, fs, quotatype_bits);
2726 com_err(program_name, retval,
2727 _("while initializing quota context"));
2730 quota_compute_usage(qctx);
2731 retval = quota_write_inode(qctx, quotatype_bits);
2733 com_err(program_name, retval,
2734 _("while writing quota inodes"));
2737 quota_release_context(&qctx);
2742 static errcode_t set_error_behavior(ext2_filsys fs)
2745 short errors = fs->super->s_errors;
2747 arg = get_string_from_profile(fs_types, "errors", NULL);
2751 if (strcmp(arg, "continue") == 0)
2752 errors = EXT2_ERRORS_CONTINUE;
2753 else if (strcmp(arg, "remount-ro") == 0)
2754 errors = EXT2_ERRORS_RO;
2755 else if (strcmp(arg, "panic") == 0)
2756 errors = EXT2_ERRORS_PANIC;
2758 com_err(program_name, 0,
2759 _("bad error behavior in profile - %s"),
2762 return EXT2_ET_INVALID_ARGUMENT;
2767 if (errors_behavior)
2768 errors = errors_behavior;
2770 fs->super->s_errors = errors;
2774 int main (int argc, char *argv[])
2776 errcode_t retval = 0;
2778 badblocks_list bb_list = 0;
2779 unsigned int journal_blocks = 0;
2780 unsigned int i, checkinterval;
2786 char opt_string[40];
2788 int itable_zeroed = 0;
2791 setlocale(LC_MESSAGES, "");
2792 setlocale(LC_CTYPE, "");
2793 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2794 textdomain(NLS_CAT_NAME);
2795 set_com_err_gettext(gettext);
2799 #ifdef CONFIG_TESTIO_DEBUG
2800 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2801 io_ptr = test_io_manager;
2802 test_io_backing_manager = unix_io_manager;
2805 io_ptr = unix_io_manager;
2807 if (undo_file != NULL || should_do_undo(device_name)) {
2808 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2814 * Initialize the superblock....
2816 flags = EXT2_FLAG_EXCLUSIVE;
2818 flags |= EXT2_FLAG_DIRECT_IO;
2819 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2822 flags |= EXT2_FLAG_64BITS;
2824 * By default, we print how many inode tables or block groups
2825 * or whatever we've written so far. The quiet flag disables
2826 * this, along with a lot of other output.
2829 flags |= EXT2_FLAG_PRINT_PROGRESS;
2830 retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
2832 com_err(device_name, retval, "%s",
2833 _("while setting up superblock"));
2836 fs->progress_ops = &ext2fs_numeric_progress_ops;
2838 /* Set the error behavior */
2839 retval = set_error_behavior(fs);
2843 /* Check the user's mkfs options for metadata checksumming */
2845 !ext2fs_has_feature_journal_dev(fs->super) &&
2846 ext2fs_has_feature_metadata_csum(fs->super)) {
2847 if (!ext2fs_has_feature_extents(fs->super))
2849 _("Extents are not enabled. The file extent "
2850 "tree can be checksummed, whereas block maps "
2851 "cannot. Not enabling extents reduces the "
2852 "coverage of metadata checksumming. "
2853 "Pass -O extents to rectify.\n"));
2854 if (!ext2fs_has_feature_64bit(fs->super))
2856 _("64-bit filesystem support is not enabled. "
2857 "The larger fields afforded by this feature "
2858 "enable full-strength checksumming. "
2859 "Pass -O 64bit to rectify.\n"));
2862 if (ext2fs_has_feature_csum_seed(fs->super) &&
2863 !ext2fs_has_feature_metadata_csum(fs->super)) {
2864 printf("%s", _("The metadata_csum_seed feature "
2865 "requres the metadata_csum feature.\n"));
2869 /* Calculate journal blocks */
2870 if (!journal_device && ((journal_size) ||
2871 ext2fs_has_feature_journal(&fs_param)))
2872 journal_blocks = figure_journal_size(journal_size, fs);
2874 sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2875 32768 : fs->blocksize * 8);
2876 io_channel_set_options(fs->io, opt_string);
2878 sprintf(opt_string, "offset=%llu", offset);
2879 io_channel_set_options(fs->io, opt_string);
2882 /* Can't undo discard ... */
2883 if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
2884 retval = mke2fs_discard_device(fs);
2885 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2888 _("Discard succeeded and will return "
2889 "0s - skipping inode table wipe\n"));
2890 lazy_itable_init = 1;
2896 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2897 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2899 if (ext2fs_has_feature_flex_bg(&fs_param) ||
2900 ext2fs_has_feature_huge_file(&fs_param) ||
2901 ext2fs_has_feature_gdt_csum(&fs_param) ||
2902 ext2fs_has_feature_dir_nlink(&fs_param) ||
2903 ext2fs_has_feature_metadata_csum(&fs_param) ||
2904 ext2fs_has_feature_extra_isize(&fs_param))
2905 fs->super->s_kbytes_written = 1;
2908 * Wipe out the old on-disk superblock
2911 zap_sector(fs, 2, 6);
2914 * Parse or generate a UUID for the filesystem
2917 if ((strcasecmp(fs_uuid, "null") == 0) ||
2918 (strcasecmp(fs_uuid, "clear") == 0)) {
2919 uuid_clear(fs->super->s_uuid);
2920 } else if (strcasecmp(fs_uuid, "time") == 0) {
2921 uuid_generate_time(fs->super->s_uuid);
2922 } else if (strcasecmp(fs_uuid, "random") == 0) {
2923 uuid_generate(fs->super->s_uuid);
2924 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
2925 com_err(device_name, 0, "could not parse UUID: %s\n",
2930 uuid_generate(fs->super->s_uuid);
2932 if (ext2fs_has_feature_csum_seed(fs->super))
2933 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
2934 fs->super->s_uuid, sizeof(fs->super->s_uuid));
2936 ext2fs_init_csum_seed(fs);
2939 * Initialize the directory index variables
2941 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2943 hash_alg = e2p_string2hash(hash_alg_str);
2945 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2947 uuid_generate((unsigned char *) fs->super->s_hash_seed);
2950 * Periodic checks can be enabled/disabled via config file.
2951 * Note we override the kernel include file's idea of what the default
2952 * check interval (never) should be. It's a good idea to check at
2953 * least *occasionally*, specially since servers will never rarely get
2954 * to reboot, since Linux is so robust these days. :-)
2956 * 180 days (six months) seems like a good value.
2958 #ifdef EXT2_DFL_CHECKINTERVAL
2959 #undef EXT2_DFL_CHECKINTERVAL
2961 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2963 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
2964 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
2965 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
2967 * Add "jitter" to the superblock's check interval so that we
2968 * don't check all the filesystems at the same time. We use a
2969 * kludgy hack of using the UUID to derive a random jitter value
2971 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2972 val += fs->super->s_uuid[i];
2973 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2975 fs->super->s_max_mnt_count = -1;
2978 * Override the creator OS, if applicable
2980 if (creator_os && !set_os(fs->super, creator_os)) {
2981 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2986 * For the Hurd, we will turn off filetype since it doesn't
2989 if (fs->super->s_creator_os == EXT2_OS_HURD)
2990 ext2fs_clear_feature_filetype(fs->super);
2993 * Set the volume label...
2996 memset(fs->super->s_volume_name, 0,
2997 sizeof(fs->super->s_volume_name));
2998 strncpy(fs->super->s_volume_name, volume_label,
2999 sizeof(fs->super->s_volume_name));
3003 * Set the last mount directory
3006 memset(fs->super->s_last_mounted, 0,
3007 sizeof(fs->super->s_last_mounted));
3008 strncpy(fs->super->s_last_mounted, mount_dir,
3009 sizeof(fs->super->s_last_mounted));
3012 /* Set current default encryption algorithms for data and
3013 * filename encryption */
3014 if (ext2fs_has_feature_encrypt(fs->super)) {
3015 fs->super->s_encrypt_algos[0] =
3016 EXT4_ENCRYPTION_MODE_AES_256_XTS;
3017 fs->super->s_encrypt_algos[1] =
3018 EXT4_ENCRYPTION_MODE_AES_256_CTS;
3021 if (ext2fs_has_feature_metadata_csum(fs->super))
3022 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3024 if (!quiet || noaction)
3030 if (ext2fs_has_feature_journal_dev(fs->super)) {
3031 create_journal_dev(fs);
3033 exit(ext2fs_close_free(&fs) ? 1 : 0);
3036 if (bad_blocks_filename)
3037 read_bb_file(fs, &bb_list, bad_blocks_filename);
3039 test_disk(fs, &bb_list);
3040 handle_bad_blocks(fs, bb_list);
3042 fs->stride = fs_stride = fs->super->s_raid_stride;
3044 printf("%s", _("Allocating group tables: "));
3045 if (ext2fs_has_feature_flex_bg(fs->super) &&
3047 retval = packed_allocate_tables(fs);
3049 retval = ext2fs_allocate_tables(fs);
3051 com_err(program_name, retval, "%s",
3052 _("while trying to allocate filesystem tables"));
3056 printf("%s", _("done \n"));
3058 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3060 com_err(program_name, retval, "%s",
3061 _("\n\twhile converting subcluster bitmap"));
3066 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3067 printf(_("%s may be further corrupted by superblock rewrite\n"),
3070 proceed_question(proceed_delay);
3071 fs->super->s_state |= EXT2_ERROR_FS;
3072 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3074 * The command "mke2fs -S" is used to recover
3075 * corrupted file systems, so do not mark any of the
3076 * inodes as unused; we want e2fsck to consider all
3077 * inodes as potentially containing recoverable data.
3079 if (ext2fs_has_group_desc_csum(fs)) {
3080 for (i = 0; i < fs->group_desc_count; i++)
3081 ext2fs_bg_itable_unused_set(fs, i, 0);
3084 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3085 blk64_t rsv = 65536 / fs->blocksize;
3086 blk64_t blocks = ext2fs_blocks_count(fs->super);
3090 #ifdef ZAP_BOOTBLOCK
3091 zap_sector(fs, 0, 2);
3095 * Wipe out any old MD RAID (or other) metadata at the end
3096 * of the device. This will also verify that the device is
3097 * as large as we think. Be careful with very small devices.
3099 start = (blocks & ~(rsv - 1));
3103 retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3107 com_err(program_name, retval,
3108 _("while zeroing block %llu at end of filesystem"),
3111 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3112 create_root_dir(fs);
3113 create_lost_and_found(fs);
3115 create_bad_block_inode(fs, bb_list);
3116 if (ext2fs_has_feature_resize_inode(fs->super)) {
3117 retval = ext2fs_create_resize_inode(fs);
3119 com_err("ext2fs_create_resize_inode", retval,
3121 _("while reserving blocks for online resize"));
3127 if (journal_device) {
3130 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3132 proceed_question(proceed_delay);
3133 check_mount(journal_device, force, _("journal"));
3135 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3136 EXT2_FLAG_JOURNAL_DEV_OK, 0,
3137 fs->blocksize, unix_io_manager, &jfs);
3139 com_err(program_name, retval,
3140 _("while trying to open journal device %s\n"),
3145 printf(_("Adding journal to device %s: "),
3149 retval = ext2fs_add_journal_device(fs, jfs);
3151 com_err (program_name, retval,
3152 _("\n\twhile trying to add journal to device %s"),
3157 printf("%s", _("done\n"));
3158 ext2fs_close_free(&jfs);
3159 free(journal_device);
3160 } else if ((journal_size) ||
3161 ext2fs_has_feature_journal(&fs_param)) {
3163 printf("%s", _("Skipping journal creation in super-only mode\n"));
3164 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3168 if (!journal_blocks) {
3169 ext2fs_clear_feature_journal(fs->super);
3173 printf(_("Creating journal (%u blocks): "),
3177 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3181 com_err(program_name, retval, "%s",
3182 _("\n\twhile trying to create journal"));
3186 printf("%s", _("done\n"));
3190 ext2fs_has_feature_mmp(fs->super)) {
3191 retval = ext2fs_mmp_init(fs);
3193 fprintf(stderr, "%s",
3194 _("\nError while enabling multiple "
3195 "mount protection feature."));
3199 printf(_("Multiple mount protection is enabled "
3200 "with update interval %d seconds.\n"),
3201 fs->super->s_mmp_update_interval);
3204 if (ext2fs_has_feature_bigalloc(&fs_param))
3205 fix_cluster_bg_counts(fs);
3206 if (ext2fs_has_feature_project(&fs_param))
3207 quotatype_bits |= QUOTA_PRJ_BIT;
3208 if (ext2fs_has_feature_quota(&fs_param))
3209 create_quota_inodes(fs);
3211 retval = mk_hugefiles(fs, device_name);
3213 com_err(program_name, retval, "while creating huge files");
3214 /* Copy files from the specified directory */
3217 printf("%s", _("Copying files into the device: "));
3219 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3222 com_err(program_name, retval, "%s",
3223 _("while populating file system"));
3226 printf("%s", _("done\n"));
3230 printf("%s", _("Writing superblocks and "
3231 "filesystem accounting information: "));
3232 checkinterval = fs->super->s_checkinterval;
3233 max_mnt_count = fs->super->s_max_mnt_count;
3234 retval = ext2fs_close_free(&fs);
3236 fprintf(stderr, "%s",
3237 _("\nWarning, had trouble writing out superblocks.\n"));
3238 } else if (!quiet) {
3239 printf("%s", _("done\n\n"));
3240 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3241 print_check_message(max_mnt_count, checkinterval);
3244 remove_error_table(&et_ext2_error_table);
3245 remove_error_table(&et_prof_error_table);
3246 profile_release(profile);
3247 for (i=0; fs_types[i]; i++)