2 * mke2fs.c - Make a ext2fs filesystem.
4 * Copyright (C) 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
12 /* Usage: mke2fs [options] device
14 * The device may be a block device or a image of one, but this isn't
15 * enforced (but it's not much fun on a character device :-).
24 #include <sys/utsname.h>
44 #include <sys/ioctl.h>
45 #include <sys/types.h>
47 #include "ext2fs/ext2_fs.h"
48 #include "et/com_err.h"
49 #include "uuid/uuid.h"
51 #include "ext2fs/ext2fs.h"
53 #include "../version.h"
54 #include "nls-enable.h"
56 #define STRIDE_LENGTH 8
62 extern int isatty(int);
63 extern FILE *fpopen(const char *cmd, const char *mode);
65 const char * program_name = "mke2fs";
66 const char * device_name /* = NULL */;
68 /* Command line options */
77 char *bad_blocks_filename;
80 struct ext2_super_block param;
85 int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
87 static void usage(void)
89 fprintf(stderr, _("Usage: %s [-c|-t|-l filename] [-b block-size] "
90 "[-f fragment-size]\n\t[-i bytes-per-inode] [-j] [-J journal-options]"
91 " [-N number-of-inodes]\n\t[-m reserved-blocks-percentage] "
92 "[-o creator-os] [-g blocks-per-group]\n\t[-L volume-label] "
93 "[-M last-mounted-directory] [-O feature[,...]]\n\t"
94 "[-r fs-revision] [-R raid_opts] [-qvSV] device [blocks-count]\n"),
99 static int int_log2(int arg)
111 static int int_log10(unsigned int arg)
121 * This function sets the default parameters for a filesystem
123 * The type is specified by the user. The size is the maximum size
124 * (in megabytes) for which a set of parameters applies, with a size
125 * of zero meaning that it is the default parameter for the type.
126 * Note that order is important in the table below.
128 static char default_str[] = "default";
129 struct mke2fs_defaults {
135 { default_str, 0, 4096, 8192 },
136 { default_str, 512, 1024, 4096 },
137 { default_str, 3, 1024, 8192 },
138 { "journal", 0, 4096, 8192 },
139 { "news", 0, 4096, 4096 },
140 { "largefile", 0, 4096, 1024 * 1024 },
141 { "largefile4", 0, 4096, 4096 * 1024 },
145 static void set_fs_defaults(const char *fs_type,
146 struct ext2_super_block *super,
147 int blocksize, int *inode_ratio)
151 struct mke2fs_defaults *p;
153 megs = (super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) /
156 ratio = *inode_ratio;
158 fs_type = default_str;
159 for (p = settings; p->type; p++) {
160 if ((strcmp(p->type, fs_type) != 0) &&
161 (strcmp(p->type, default_str) != 0))
163 if ((p->size != 0) &&
167 *inode_ratio = p->inode_ratio;
168 if (blocksize == 0) {
169 super->s_log_frag_size = super->s_log_block_size =
170 int_log2(p->blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
174 super->s_blocks_count /= EXT2_BLOCK_SIZE(super) / 1024;
178 * Helper function for read_bb_file and test_disk
180 static void invalid_block(ext2_filsys fs, blk_t blk)
182 printf(_("Bad block %u out of range; ignored.\n"), blk);
187 * Reads the bad blocks list from a file
189 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
190 const char *bad_blocks_file)
195 f = fopen(bad_blocks_file, "r");
197 com_err("read_bad_blocks_file", errno,
198 _("while trying to open %s"), bad_blocks_file);
201 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
204 com_err("ext2fs_read_bb_FILE", retval,
205 _("while reading in list of bad blocks from file"));
211 * Runs the badblocks program to test the disk
213 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
219 sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
220 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
221 fs->device_name, fs->super->s_blocks_count);
223 printf(_("Running command: %s\n"), buf);
226 com_err("popen", errno,
227 _("while trying run '%s'"), buf);
230 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
233 com_err("ext2fs_read_bb_FILE", retval,
234 _("while processing list of bad blocks from program"));
239 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
244 badblocks_iterate bb_iter;
254 * The primary superblock and group descriptors *must* be
255 * good; if not, abort.
257 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
258 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
259 if (ext2fs_badblocks_list_test(bb_list, i)) {
260 fprintf(stderr, _("Block %d in primary "
261 "superblock/group descriptor area bad.\n"), i);
262 fprintf(stderr, _("Blocks %d through %d must be good "
263 "in order to build a filesystem.\n"),
264 fs->super->s_first_data_block, must_be_good);
265 fprintf(stderr, _("Aborting....\n"));
271 * See if any of the bad blocks are showing up in the backup
272 * superblocks and/or group descriptors. If so, issue a
273 * warning and adjust the block counts appropriately.
275 group_block = fs->super->s_first_data_block +
276 fs->super->s_blocks_per_group;
278 for (i = 1; i < fs->group_desc_count; i++) {
280 for (j=0; j < fs->desc_blocks+1; j++) {
281 if (ext2fs_badblocks_list_test(bb_list,
285 _("Warning: the backup superblock/group descriptors at block %d contain\n"
289 group = ext2fs_group_of_blk(fs, group_block+j);
290 fs->group_desc[group].bg_free_blocks_count++;
291 fs->super->s_free_blocks_count++;
294 group_block += fs->super->s_blocks_per_group;
298 * Mark all the bad blocks as used...
300 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
302 com_err("ext2fs_badblocks_list_iterate_begin", retval,
303 _("while marking bad blocks as used"));
306 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
307 ext2fs_mark_block_bitmap(fs->block_map, blk);
308 ext2fs_badblocks_list_iterate_end(bb_iter);
312 * These functions implement a generalized progress meter.
314 struct progress_struct {
320 static void progress_init(struct progress_struct *progress,
321 const char *label,__u32 max)
325 memset(progress, 0, sizeof(struct progress_struct));
330 * Figure out how many digits we need
333 sprintf(progress->format, "%%%dd/%%%dld", i, i);
334 memset(progress->backup, '\b', sizeof(progress->backup)-1);
335 progress->backup[sizeof(progress->backup)-1] = 0;
336 if ((2*i)+1 < sizeof(progress->backup))
337 progress->backup[(2*i)+1] = 0;
340 fputs(label, stdout);
344 static void progress_update(struct progress_struct *progress, __u32 val)
346 if (progress->format[0] == 0)
348 printf(progress->format, val, progress->max);
349 fputs(progress->backup, stdout);
352 static void progress_close(struct progress_struct *progress)
354 if (progress->format[0] == 0)
356 fputs(_("done \n"), stdout);
361 * Helper function which zeros out _num_ blocks starting at _blk_. In
362 * case of an error, the details of the error is returned via _ret_blk_
363 * and _ret_count_ if they are non-NULL pointers. Returns 0 on
364 * success, and an error code on an error.
366 * As a special case, if the first argument is NULL, then it will
367 * attempt to free the static zeroizing buffer. (This is to keep
368 * programs that check for memory leaks happy.)
370 static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num,
371 struct progress_struct *progress,
372 blk_t *ret_blk, int *ret_count)
374 int j, count, next_update, next_update_incr;
378 /* If fs is null, clean up the static buffer and return */
386 /* Allocate the zeroizing buffer if necessary */
388 buf = malloc(fs->blocksize * STRIDE_LENGTH);
390 com_err("malloc", ENOMEM,
391 _("while allocating zeroizing buffer"));
394 memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
396 /* OK, do the write loop */
398 next_update_incr = num / 100;
399 if (next_update_incr < 1)
400 next_update_incr = 1;
401 for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
402 if (num-j > STRIDE_LENGTH)
403 count = STRIDE_LENGTH;
406 retval = io_channel_write_blk(fs->io, blk, count, buf);
414 if (progress && j > next_update) {
415 next_update += num / 100;
416 progress_update(progress, blk);
422 static void write_inode_tables(ext2_filsys fs)
427 struct progress_struct progress;
430 memset(&progress, 0, sizeof(progress));
432 progress_init(&progress, _("Writing inode tables: "),
433 fs->group_desc_count);
435 for (i = 0; i < fs->group_desc_count; i++) {
436 progress_update(&progress, i);
438 blk = fs->group_desc[i].bg_inode_table;
439 num = fs->inode_blocks_per_group;
441 retval = zero_blocks(fs, blk, num, 0, &blk, &num);
443 printf(_("\nCould not write %d blocks "
444 "in inode table starting at %d: %s\n"),
445 num, blk, error_message(retval));
449 if (sync_kludge == 1)
451 else if ((i % sync_kludge) == 0)
455 zero_blocks(0, 0, 0, 0, 0, 0);
456 progress_close(&progress);
459 static void create_root_dir(ext2_filsys fs)
462 struct ext2_inode inode;
464 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
466 com_err("ext2fs_mkdir", retval, _("while creating root dir"));
470 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
472 com_err("ext2fs_read_inode", retval,
473 _("while reading root inode"));
476 inode.i_uid = getuid();
478 inode.i_gid = getgid();
479 retval = ext2fs_write_inode(fs, EXT2_ROOT_INO, &inode);
481 com_err("ext2fs_write_inode", retval,
482 _("while setting root inode ownership"));
488 static void create_lost_and_found(ext2_filsys fs)
492 const char *name = "lost+found";
497 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
499 com_err("ext2fs_mkdir", retval,
500 _("while creating /lost+found"));
504 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
506 com_err("ext2_lookup", retval,
507 _("while looking up /lost+found"));
511 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
512 if ((lpf_size += fs->blocksize) >= 16*1024)
514 retval = ext2fs_expand_dir(fs, ino);
516 com_err("ext2fs_expand_dir", retval,
517 _("while expanding /lost+found"));
523 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
527 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO);
528 fs->group_desc[0].bg_free_inodes_count--;
529 fs->super->s_free_inodes_count--;
530 retval = ext2fs_update_bb_inode(fs, bb_list);
532 com_err("ext2fs_update_bb_inode", retval,
533 _("while setting bad block inode"));
539 static void reserve_inodes(ext2_filsys fs)
544 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) {
545 ext2fs_mark_inode_bitmap(fs->inode_map, i);
546 group = ext2fs_group_of_ino(fs, i);
547 fs->group_desc[group].bg_free_inodes_count--;
548 fs->super->s_free_inodes_count--;
550 ext2fs_mark_ib_dirty(fs);
553 static void zap_sector(ext2_filsys fs, int sect, int nsect)
558 buf = malloc(512*nsect);
560 printf(_("Out of memory erasing sectors %d-%d\n"),
561 sect, sect + nsect - 1);
564 memset(buf, 0, 512*nsect);
566 io_channel_set_blksize(fs->io, 512);
567 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf);
568 io_channel_set_blksize(fs->io, fs->blocksize);
571 printf(_("Warning: could not erase sector %d: %s\n"), sect,
572 error_message(retval));
575 static void create_journal_dev(ext2_filsys fs)
577 struct progress_struct progress;
583 retval = ext2fs_create_journal_superblock(fs,
584 fs->super->s_blocks_count, 0, &buf);
586 com_err("create_journal_dev", retval,
587 _("while initializing journal superblock"));
591 memset(&progress, 0, sizeof(progress));
593 progress_init(&progress, _("Zeroing journal device: "),
594 fs->super->s_blocks_count);
596 retval = zero_blocks(fs, 0, fs->super->s_blocks_count,
597 &progress, &blk, &count);
599 com_err("create_journal_dev", retval,
600 _("while zeroing journal device (block %u, count %d)"),
604 zero_blocks(0, 0, 0, 0, 0, 0);
606 retval = io_channel_write_blk(fs->io,
607 fs->super->s_first_data_block+1,
610 com_err("create_journal_dev", retval,
611 _("while writing journal superblock"));
614 progress_close(&progress);
617 static void show_stats(ext2_filsys fs)
619 struct ext2_super_block *s = fs->super;
622 int i, need, col_left;
624 if (param.s_blocks_count != s->s_blocks_count)
625 printf(_("warning: %d blocks unused.\n\n"),
626 param.s_blocks_count - s->s_blocks_count);
628 memset(buf, 0, sizeof(buf));
629 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
630 printf(_("Filesystem label=%s\n"), buf);
631 printf(_("OS type: "));
632 switch (fs->super->s_creator_os) {
633 case EXT2_OS_LINUX: printf ("Linux"); break;
634 case EXT2_OS_HURD: printf ("GNU/Hurd"); break;
635 case EXT2_OS_MASIX: printf ("Masix"); break;
636 default: printf (_("(unknown os)"));
639 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
640 s->s_log_block_size);
641 printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize,
643 printf(_("%u inodes, %u blocks\n"), s->s_inodes_count,
645 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"),
647 100.0 * s->s_r_blocks_count / s->s_blocks_count);
648 printf(_("First data block=%u\n"), s->s_first_data_block);
649 if (fs->group_desc_count > 1)
650 printf(_("%u block groups\n"), fs->group_desc_count);
652 printf(_("%u block group\n"), fs->group_desc_count);
653 printf(_("%u blocks per group, %u fragments per group\n"),
654 s->s_blocks_per_group, s->s_frags_per_group);
655 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
657 if (fs->group_desc_count == 1) {
662 printf(_("Superblock backups stored on blocks: "));
663 group_block = s->s_first_data_block;
665 for (i = 1; i < fs->group_desc_count; i++) {
666 group_block += s->s_blocks_per_group;
667 if (!ext2fs_bg_has_super(fs, i))
671 need = int_log10(group_block) + 2;
672 if (need > col_left) {
677 printf("%u", group_block);
683 * Set the S_CREATOR_OS field. Return true if OS is known,
686 static int set_os(struct ext2_super_block *sb, char *os)
689 sb->s_creator_os = atoi (os);
690 else if (strcasecmp(os, "linux") == 0)
691 sb->s_creator_os = EXT2_OS_LINUX;
692 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
693 sb->s_creator_os = EXT2_OS_HURD;
694 else if (strcasecmp(os, "masix") == 0)
695 sb->s_creator_os = EXT2_OS_MASIX;
701 #define PATH_SET "PATH=/sbin"
703 static void parse_raid_opts(const char *opts)
705 char *buf, *token, *next, *p, *arg;
712 fprintf(stderr, _("Couldn't allocate memory to parse "
717 for (token = buf; token && *token; token = next) {
718 p = strchr(token, ',');
724 arg = strchr(token, '=');
729 if (strcmp(token, "stride") == 0) {
734 fs_stride = strtoul(arg, &p, 0);
735 if (*p || (fs_stride == 0)) {
737 _("Invalid stride parameter.\n"));
745 fprintf(stderr, _("\nBad raid options specified.\n\n"
746 "Raid options are separated by commas, "
747 "and may take an argument which\n"
748 "\tis set off by an equals ('=') sign.\n\n"
749 "Valid raid options are:\n"
750 "\tstride=<stride length in blocks>\n\n"));
755 static __u32 ok_features[3] = {
756 EXT3_FEATURE_COMPAT_HAS_JOURNAL, /* Compat */
757 EXT2_FEATURE_INCOMPAT_FILETYPE| /* Incompat */
758 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV,
759 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER /* R/O compat */
763 static void PRS(int argc, char *argv[])
768 blk_t group_blk_max = 8192;
771 int reserved_ratio = 5;
772 ext2_ino_t num_inodes = 0;
774 char * oldpath = getenv("PATH");
775 char * raid_opts = 0;
776 const char * fs_type = 0;
777 int default_features = 1;
783 /* Update our PATH to include /sbin */
787 newpath = malloc(sizeof (PATH_SET) + 1 + strlen (oldpath));
788 strcpy (newpath, PATH_SET);
789 strcat (newpath, ":");
790 strcat (newpath, oldpath);
795 tmp = getenv("MKE2FS_SYNC");
797 sync_kludge = atoi(tmp);
799 setbuf(stdout, NULL);
800 setbuf(stderr, NULL);
801 initialize_ext2_error_table();
802 memset(¶m, 0, sizeof(struct ext2_super_block));
803 param.s_rev_level = 1; /* Create revision 1 filesystems now */
804 param.s_feature_incompat |= EXT2_FEATURE_INCOMPAT_FILETYPE;
805 param.s_feature_ro_compat |= EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
812 if ((ut.release[0] == '1') ||
813 (ut.release[0] == '2' && ut.release[1] == '.' &&
814 ut.release[2] < '2' && ut.release[3] == '.')) {
815 param.s_rev_level = 0;
816 param.s_feature_incompat = 0;
817 param.s_feature_compat = 0;
818 param.s_feature_ro_compat = 0;
821 fprintf (stderr, "mke2fs %s (%s)\n",
822 E2FSPROGS_VERSION, E2FSPROGS_DATE);
825 program_name = get_progname(*argv);
827 /* If called as mkfs.ext3, create a journal inode */
828 if (!strcmp(program_name, "mkfs.ext3"))
832 while ((c = getopt (argc, argv,
833 "b:cf:g:i:jl:m:no:qr:R:s:tvI:J:ST:FL:M:N:O:V")) != EOF)
836 blocksize = strtoul(optarg, &tmp, 0);
837 if (blocksize < 1024 || blocksize > 4096 || *tmp) {
838 com_err(program_name, 0,
839 _("bad block size - %s"), optarg);
842 param.s_log_block_size =
843 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
844 group_blk_max = blocksize * 8;
846 case 'c': /* Check for bad blocks */
847 case 't': /* deprecated */
851 size = strtoul(optarg, &tmp, 0);
852 if (size < 1024 || size > 4096 || *tmp) {
853 com_err(program_name, 0,
854 _("bad fragment size - %s"),
858 param.s_log_frag_size =
859 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
860 printf(_("Warning: fragments not supported. "
861 "Ignoring -f option\n"));
864 param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
866 com_err(program_name, 0,
867 _("Illegal number for blocks per group"));
870 if ((param.s_blocks_per_group % 8) != 0) {
871 com_err(program_name, 0,
872 _("blocks per group must be multiple of 8"));
877 inode_ratio = strtoul(optarg, &tmp, 0);
878 if (inode_ratio < 1024 || inode_ratio > 4096 * 1024 ||
880 com_err(program_name, 0,
881 _("bad inode ratio - %s"), optarg);
886 parse_journal_opts(optarg);
889 param.s_feature_compat |=
890 EXT3_FEATURE_COMPAT_HAS_JOURNAL;
895 bad_blocks_filename = malloc(strlen(optarg)+1);
896 if (!bad_blocks_filename) {
897 com_err(program_name, ENOMEM,
898 _("in malloc for bad_blocks_filename"));
901 strcpy(bad_blocks_filename, optarg);
904 reserved_ratio = strtoul(optarg, &tmp, 0);
905 if (reserved_ratio > 50 || *tmp) {
906 com_err(program_name, 0,
907 _("bad reserved blocks percent - %s"),
919 param.s_rev_level = atoi(optarg);
920 if (param.s_rev_level == EXT2_GOOD_OLD_REV) {
921 param.s_feature_incompat = 0;
922 param.s_feature_compat = 0;
923 param.s_feature_ro_compat = 0;
926 case 's': /* deprecated */
928 param.s_feature_ro_compat |=
929 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
931 param.s_feature_ro_compat &=
932 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
934 #ifdef EXT2_DYNAMIC_REV
936 param.s_inode_size = atoi(optarg);
940 num_inodes = atoi(optarg);
952 volume_label = optarg;
958 if (!strcmp(optarg, "none") || default_features) {
959 param.s_feature_compat = 0;
960 param.s_feature_incompat = 0;
961 param.s_feature_ro_compat = 0;
962 default_features = 0;
964 if (!strcmp(optarg, "none"))
966 if (e2p_edit_feature(optarg,
967 ¶m.s_feature_compat,
970 _("Invalid filesystem option set: %s\n"), optarg);
984 /* Print version number and exit */
985 fprintf(stderr, _("\tUsing %s\n"),
986 error_message(EXT2_ET_BASE));
993 device_name = argv[optind];
996 unsigned long tmp2 = strtoul(argv[optind++], &tmp, 0);
998 if ((*tmp) || (tmp2 > 0xfffffffful)) {
999 com_err(program_name, 0, _("bad blocks count - %s"),
1003 param.s_blocks_count = tmp2;
1009 parse_raid_opts(raid_opts);
1012 * If there's no blocksize specified and there is a journal
1013 * device, use it to figure out the blocksize
1015 if (blocksize == 0 && journal_device) {
1018 retval = ext2fs_open(journal_device,
1019 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1020 0, unix_io_manager, &jfs);
1022 com_err(program_name, retval,
1023 _("while trying to open journal device %s\n"),
1027 blocksize = jfs->blocksize;
1028 param.s_log_block_size =
1029 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1033 if (param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1035 fs_type = "journal";
1037 param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
1038 param.s_feature_compat = 0;
1039 param.s_feature_ro_compat = 0;
1041 if (param.s_rev_level == EXT2_GOOD_OLD_REV &&
1042 (param.s_feature_compat || param.s_feature_ro_compat ||
1043 param.s_feature_incompat))
1044 param.s_rev_level = 1; /* Create a revision 1 filesystem */
1047 check_plausibility(device_name);
1048 check_mount(device_name, force, _("filesystem"));
1050 param.s_log_frag_size = param.s_log_block_size;
1052 if (noaction && param.s_blocks_count) {
1053 dev_size = param.s_blocks_count;
1056 retval = ext2fs_get_device_size(device_name,
1057 EXT2_BLOCK_SIZE(¶m),
1059 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1060 com_err(program_name, retval,
1061 _("while trying to determine filesystem size"));
1064 if (!param.s_blocks_count) {
1065 if (retval == EXT2_ET_UNIMPLEMENTED) {
1066 com_err(program_name, 0,
1067 _("Couldn't determine device size; you "
1068 "must specify\nthe size of the "
1072 if (dev_size == 0) {
1073 com_err(program_name, 0,
1074 _("Device size reported to be zero. "
1075 "Invalid partition specified, or\n\t"
1076 "partition table wasn't reread "
1077 "after running fdisk, due to\n\t"
1078 "a modified partition being busy "
1079 "and in use. You may need to reboot\n\t"
1080 "to re-read your partition table.\n"
1084 param.s_blocks_count = dev_size;
1087 } else if (!force && (param.s_blocks_count > dev_size)) {
1088 com_err(program_name, 0,
1089 _("Filesystem larger than apparent filesystem size."));
1094 * If the user asked for HAS_JOURNAL, then make sure a journal
1097 if ((param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
1101 set_fs_defaults(fs_type, ¶m, blocksize, &inode_ratio);
1103 if (param.s_blocks_per_group) {
1104 if (param.s_blocks_per_group < 256 ||
1105 param.s_blocks_per_group > group_blk_max || *tmp) {
1106 com_err(program_name, 0,
1107 _("blocks per group count out of range"));
1113 * Calculate number of inodes based on the inode ratio
1115 param.s_inodes_count = num_inodes ? num_inodes :
1116 ((__u64) param.s_blocks_count * EXT2_BLOCK_SIZE(¶m))
1120 * Calculate number of blocks to reserve
1122 param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100;
1126 int main (int argc, char *argv[])
1128 errcode_t retval = 0;
1130 badblocks_list bb_list = 0;
1135 setlocale(LC_MESSAGES, "");
1136 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1137 textdomain(NLS_CAT_NAME);
1142 * Initialize the superblock....
1144 retval = ext2fs_initialize(device_name, 0, ¶m,
1145 unix_io_manager, &fs);
1147 com_err(device_name, retval, _("while setting up superblock"));
1152 * Wipe out the old on-disk superblock
1155 zap_sector(fs, 2, 6);
1158 * Generate a UUID for it...
1160 uuid_generate(fs->super->s_uuid);
1163 * Add "jitter" to the superblock's check interval so that we
1164 * don't check all the filesystems at the same time. We use a
1165 * kludgy hack of using the UUID to derive a random jitter value.
1167 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
1168 val += fs->super->s_uuid[i];
1169 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
1172 * Override the creator OS, if applicable
1174 if (creator_os && !set_os(fs->super, creator_os)) {
1175 com_err (program_name, 0, _("unknown os - %s"), creator_os);
1180 * For the Hurd, we will turn off filetype since it doesn't
1183 if (fs->super->s_creator_os == EXT2_OS_HURD)
1184 fs->super->s_feature_incompat &=
1185 ~EXT2_FEATURE_INCOMPAT_FILETYPE;
1188 * Set the volume label...
1191 memset(fs->super->s_volume_name, 0,
1192 sizeof(fs->super->s_volume_name));
1193 strncpy(fs->super->s_volume_name, volume_label,
1194 sizeof(fs->super->s_volume_name));
1198 * Set the last mount directory
1201 memset(fs->super->s_last_mounted, 0,
1202 sizeof(fs->super->s_last_mounted));
1203 strncpy(fs->super->s_last_mounted, mount_dir,
1204 sizeof(fs->super->s_last_mounted));
1207 if (!quiet || noaction)
1213 if (fs->super->s_feature_incompat &
1214 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1215 create_journal_dev(fs);
1216 exit(ext2fs_close(fs) ? 1 : 0);
1219 if (bad_blocks_filename)
1220 read_bb_file(fs, &bb_list, bad_blocks_filename);
1222 test_disk(fs, &bb_list);
1224 handle_bad_blocks(fs, bb_list);
1225 fs->stride = fs_stride;
1226 retval = ext2fs_allocate_tables(fs);
1228 com_err(program_name, retval,
1229 _("while trying to allocate filesystem tables"));
1233 fs->super->s_state |= EXT2_ERROR_FS;
1234 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
1236 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
1237 int rsv = 65536 / fs->blocksize;
1238 unsigned long blocks = fs->super->s_blocks_count;
1239 unsigned long start;
1242 #ifdef ZAP_BOOTBLOCK
1243 zap_sector(fs, 0, 2);
1247 * Wipe out any old MD RAID (or other) metadata at the end
1248 * of the device. This will also verify that the device is
1249 * as large as we think. Be careful with very small devices.
1251 start = (blocks & ~(rsv - 1));
1255 retval = zero_blocks(fs, start, blocks - start,
1256 NULL, &ret_blk, NULL);
1259 com_err(program_name, retval,
1260 _("zeroing block %u at end of filesystem"),
1264 write_inode_tables(fs);
1265 create_root_dir(fs);
1266 create_lost_and_found(fs);
1268 create_bad_block_inode(fs, bb_list);
1271 if (journal_device) {
1275 check_plausibility(journal_device);
1276 check_mount(journal_device, force, _("journal"));
1278 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
1279 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1280 fs->blocksize, unix_io_manager, &jfs);
1282 com_err(program_name, retval,
1283 _("while trying to open journal device %s\n"),
1288 printf(_("Adding journal to device %s: "),
1292 retval = ext2fs_add_journal_device(fs, jfs);
1294 com_err (program_name, retval,
1295 _("\n\twhile trying to add journal to device %s"),
1300 printf(_("done\n"));
1302 free(journal_device);
1303 } else if (journal_size) {
1304 journal_blocks = figure_journal_size(journal_size, fs);
1306 if (!journal_blocks) {
1307 fs->super->s_feature_compat &=
1308 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1312 printf(_("Creating journal (%d blocks): "),
1316 retval = ext2fs_add_journal_inode(fs, journal_blocks,
1319 com_err (program_name, retval,
1320 _("\n\twhile trying to create journal"));
1324 printf(_("done\n"));
1329 printf(_("Writing superblocks and "
1330 "filesystem accounting information: "));
1331 retval = ext2fs_flush(fs);
1333 printf(_("\nWarning, had trouble writing out superblocks."));
1336 printf(_("done\n\n"));
1337 print_check_message(fs);
1339 val = ext2fs_close(fs);
1340 return (retval || val) ? 1 : 0;