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 int sys_page_size = 4096;
89 static void usage(void)
91 fprintf(stderr, _("Usage: %s [-c|-t|-l filename] [-b block-size] "
92 "[-f fragment-size]\n\t[-i bytes-per-inode] [-j] [-J journal-options]"
93 " [-N number-of-inodes]\n\t[-m reserved-blocks-percentage] "
94 "[-o creator-os] [-g blocks-per-group]\n\t[-L volume-label] "
95 "[-M last-mounted-directory] [-O feature[,...]]\n\t"
96 "[-r fs-revision] [-R raid_opts] [-qvSV] device [blocks-count]\n"),
101 static int int_log2(int arg)
113 static int int_log10(unsigned int arg)
123 * This function sets the default parameters for a filesystem
125 * The type is specified by the user. The size is the maximum size
126 * (in megabytes) for which a set of parameters applies, with a size
127 * of zero meaning that it is the default parameter for the type.
128 * Note that order is important in the table below.
130 #define DEF_MAX_BLOCKSIZE -1
131 static char default_str[] = "default";
132 struct mke2fs_defaults {
138 { default_str, 0, 4096, 8192 },
139 { default_str, 512, 1024, 4096 },
140 { default_str, 3, 1024, 8192 },
141 { "journal", 0, 4096, 8192 },
142 { "news", 0, 4096, 4096 },
143 { "largefile", 0, DEF_MAX_BLOCKSIZE, 1024 * 1024 },
144 { "largefile4", 0, DEF_MAX_BLOCKSIZE, 4096 * 1024 },
148 static void set_fs_defaults(const char *fs_type,
149 struct ext2_super_block *super,
150 int blocksize, int *inode_ratio)
154 struct mke2fs_defaults *p;
156 megs = super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) / 1024;
158 ratio = *inode_ratio;
160 fs_type = default_str;
161 for (p = settings; p->type; p++) {
162 if ((strcmp(p->type, fs_type) != 0) &&
163 (strcmp(p->type, default_str) != 0))
165 if ((p->size != 0) &&
169 *inode_ratio = p->inode_ratio < blocksize ?
170 blocksize : p->inode_ratio;
171 if (blocksize == 0) {
172 if (p->blocksize == DEF_MAX_BLOCKSIZE)
173 p->blocksize = sys_page_size;
174 super->s_log_frag_size = super->s_log_block_size =
175 int_log2(p->blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
179 super->s_blocks_count /= EXT2_BLOCK_SIZE(super) / 1024;
183 * Helper function for read_bb_file and test_disk
185 static void invalid_block(ext2_filsys fs, blk_t blk)
187 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
192 * Reads the bad blocks list from a file
194 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
195 const char *bad_blocks_file)
200 f = fopen(bad_blocks_file, "r");
202 com_err("read_bad_blocks_file", errno,
203 _("while trying to open %s"), bad_blocks_file);
206 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
209 com_err("ext2fs_read_bb_FILE", retval,
210 _("while reading in list of bad blocks from file"));
216 * Runs the badblocks program to test the disk
218 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
224 sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
225 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
226 fs->device_name, fs->super->s_blocks_count);
228 printf(_("Running command: %s\n"), buf);
231 com_err("popen", errno,
232 _("while trying run '%s'"), buf);
235 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
238 com_err("ext2fs_read_bb_FILE", retval,
239 _("while processing list of bad blocks from program"));
244 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
249 badblocks_iterate bb_iter;
259 * The primary superblock and group descriptors *must* be
260 * good; if not, abort.
262 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
263 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
264 if (ext2fs_badblocks_list_test(bb_list, i)) {
265 fprintf(stderr, _("Block %d in primary "
266 "superblock/group descriptor area bad.\n"), i);
267 fprintf(stderr, _("Blocks %d through %d must be good "
268 "in order to build a filesystem.\n"),
269 fs->super->s_first_data_block, must_be_good);
270 fprintf(stderr, _("Aborting....\n"));
276 * See if any of the bad blocks are showing up in the backup
277 * superblocks and/or group descriptors. If so, issue a
278 * warning and adjust the block counts appropriately.
280 group_block = fs->super->s_first_data_block +
281 fs->super->s_blocks_per_group;
283 for (i = 1; i < fs->group_desc_count; i++) {
285 for (j=0; j < fs->desc_blocks+1; j++) {
286 if (ext2fs_badblocks_list_test(bb_list,
290 _("Warning: the backup superblock/group descriptors at block %d contain\n"
294 group = ext2fs_group_of_blk(fs, group_block+j);
295 fs->group_desc[group].bg_free_blocks_count++;
296 fs->super->s_free_blocks_count++;
299 group_block += fs->super->s_blocks_per_group;
303 * Mark all the bad blocks as used...
305 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
307 com_err("ext2fs_badblocks_list_iterate_begin", retval,
308 _("while marking bad blocks as used"));
311 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
312 ext2fs_mark_block_bitmap(fs->block_map, blk);
313 ext2fs_badblocks_list_iterate_end(bb_iter);
317 * These functions implement a generalized progress meter.
319 struct progress_struct {
325 static void progress_init(struct progress_struct *progress,
326 const char *label,__u32 max)
330 memset(progress, 0, sizeof(struct progress_struct));
335 * Figure out how many digits we need
338 sprintf(progress->format, "%%%dd/%%%dld", i, i);
339 memset(progress->backup, '\b', sizeof(progress->backup)-1);
340 progress->backup[sizeof(progress->backup)-1] = 0;
341 if ((2*i)+1 < sizeof(progress->backup))
342 progress->backup[(2*i)+1] = 0;
345 fputs(label, stdout);
349 static void progress_update(struct progress_struct *progress, __u32 val)
351 if (progress->format[0] == 0)
353 printf(progress->format, val, progress->max);
354 fputs(progress->backup, stdout);
357 static void progress_close(struct progress_struct *progress)
359 if (progress->format[0] == 0)
361 fputs(_("done \n"), stdout);
366 * Helper function which zeros out _num_ blocks starting at _blk_. In
367 * case of an error, the details of the error is returned via _ret_blk_
368 * and _ret_count_ if they are non-NULL pointers. Returns 0 on
369 * success, and an error code on an error.
371 * As a special case, if the first argument is NULL, then it will
372 * attempt to free the static zeroizing buffer. (This is to keep
373 * programs that check for memory leaks happy.)
375 static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num,
376 struct progress_struct *progress,
377 blk_t *ret_blk, int *ret_count)
379 int j, count, next_update, next_update_incr;
383 /* If fs is null, clean up the static buffer and return */
391 /* Allocate the zeroizing buffer if necessary */
393 buf = malloc(fs->blocksize * STRIDE_LENGTH);
395 com_err("malloc", ENOMEM,
396 _("while allocating zeroizing buffer"));
399 memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
401 /* OK, do the write loop */
403 next_update_incr = num / 100;
404 if (next_update_incr < 1)
405 next_update_incr = 1;
406 for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
408 if (count > STRIDE_LENGTH)
409 count = STRIDE_LENGTH;
410 retval = io_channel_write_blk(fs->io, blk, count, buf);
418 if (progress && j > next_update) {
419 next_update += num / 100;
420 progress_update(progress, blk);
426 static void write_inode_tables(ext2_filsys fs)
431 struct progress_struct progress;
434 memset(&progress, 0, sizeof(progress));
436 progress_init(&progress, _("Writing inode tables: "),
437 fs->group_desc_count);
439 for (i = 0; i < fs->group_desc_count; i++) {
440 progress_update(&progress, i);
442 blk = fs->group_desc[i].bg_inode_table;
443 num = fs->inode_blocks_per_group;
445 retval = zero_blocks(fs, blk, num, 0, &blk, &num);
447 fprintf(stderr, _("\nCould not write %d blocks "
448 "in inode table starting at %d: %s\n"),
449 num, blk, error_message(retval));
453 if (sync_kludge == 1)
455 else if ((i % sync_kludge) == 0)
459 zero_blocks(0, 0, 0, 0, 0, 0);
460 progress_close(&progress);
463 static void create_root_dir(ext2_filsys fs)
466 struct ext2_inode inode;
468 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
470 com_err("ext2fs_mkdir", retval, _("while creating root dir"));
474 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
476 com_err("ext2fs_read_inode", retval,
477 _("while reading root inode"));
480 inode.i_uid = getuid();
482 inode.i_gid = getgid();
483 retval = ext2fs_write_inode(fs, EXT2_ROOT_INO, &inode);
485 com_err("ext2fs_write_inode", retval,
486 _("while setting root inode ownership"));
492 static void create_lost_and_found(ext2_filsys fs)
496 const char *name = "lost+found";
501 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
503 com_err("ext2fs_mkdir", retval,
504 _("while creating /lost+found"));
508 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
510 com_err("ext2_lookup", retval,
511 _("while looking up /lost+found"));
515 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
516 if ((lpf_size += fs->blocksize) >= 16*1024)
518 retval = ext2fs_expand_dir(fs, ino);
520 com_err("ext2fs_expand_dir", retval,
521 _("while expanding /lost+found"));
527 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
531 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO);
532 fs->group_desc[0].bg_free_inodes_count--;
533 fs->super->s_free_inodes_count--;
534 retval = ext2fs_update_bb_inode(fs, bb_list);
536 com_err("ext2fs_update_bb_inode", retval,
537 _("while setting bad block inode"));
543 static void reserve_inodes(ext2_filsys fs)
548 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) {
549 ext2fs_mark_inode_bitmap(fs->inode_map, i);
550 group = ext2fs_group_of_ino(fs, i);
551 fs->group_desc[group].bg_free_inodes_count--;
552 fs->super->s_free_inodes_count--;
554 ext2fs_mark_ib_dirty(fs);
557 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
558 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
559 #define BSD_LABEL_OFFSET 64
561 static void zap_sector(ext2_filsys fs, int sect, int nsect)
567 buf = malloc(512*nsect);
569 printf(_("Out of memory erasing sectors %d-%d\n"),
570 sect, sect + nsect - 1);
575 /* Check for a BSD disklabel, and don't erase it if so */
576 retval = io_channel_read_blk(fs->io, 0, -512, buf);
579 _("Warning: could not read block 0: %s\n"),
580 error_message(retval));
582 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
583 if ((*magic == BSD_DISKMAGIC) ||
584 (*magic == BSD_MAGICDISK))
589 memset(buf, 0, 512*nsect);
590 io_channel_set_blksize(fs->io, 512);
591 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf);
592 io_channel_set_blksize(fs->io, fs->blocksize);
595 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
596 sect, error_message(retval));
599 static void create_journal_dev(ext2_filsys fs)
601 struct progress_struct progress;
607 retval = ext2fs_create_journal_superblock(fs,
608 fs->super->s_blocks_count, 0, &buf);
610 com_err("create_journal_dev", retval,
611 _("while initializing journal superblock"));
615 memset(&progress, 0, sizeof(progress));
617 progress_init(&progress, _("Zeroing journal device: "),
618 fs->super->s_blocks_count);
620 retval = zero_blocks(fs, 0, fs->super->s_blocks_count,
621 &progress, &blk, &count);
623 com_err("create_journal_dev", retval,
624 _("while zeroing journal device (block %u, count %d)"),
628 zero_blocks(0, 0, 0, 0, 0, 0);
630 retval = io_channel_write_blk(fs->io,
631 fs->super->s_first_data_block+1,
634 com_err("create_journal_dev", retval,
635 _("while writing journal superblock"));
638 progress_close(&progress);
641 static void show_stats(ext2_filsys fs)
643 struct ext2_super_block *s = fs->super;
646 int i, need, col_left;
648 if (param.s_blocks_count != s->s_blocks_count)
649 fprintf(stderr, _("warning: %d blocks unused.\n\n"),
650 param.s_blocks_count - s->s_blocks_count);
652 memset(buf, 0, sizeof(buf));
653 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
654 printf(_("Filesystem label=%s\n"), buf);
655 printf(_("OS type: "));
656 switch (fs->super->s_creator_os) {
657 case EXT2_OS_LINUX: printf ("Linux"); break;
658 case EXT2_OS_HURD: printf ("GNU/Hurd"); break;
659 case EXT2_OS_MASIX: printf ("Masix"); break;
660 default: printf (_("(unknown os)"));
663 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
664 s->s_log_block_size);
665 printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize,
667 printf(_("%u inodes, %u blocks\n"), s->s_inodes_count,
669 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"),
671 100.0 * s->s_r_blocks_count / s->s_blocks_count);
672 printf(_("First data block=%u\n"), s->s_first_data_block);
673 if (fs->group_desc_count > 1)
674 printf(_("%u block groups\n"), fs->group_desc_count);
676 printf(_("%u block group\n"), fs->group_desc_count);
677 printf(_("%u blocks per group, %u fragments per group\n"),
678 s->s_blocks_per_group, s->s_frags_per_group);
679 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
681 if (fs->group_desc_count == 1) {
686 printf(_("Superblock backups stored on blocks: "));
687 group_block = s->s_first_data_block;
689 for (i = 1; i < fs->group_desc_count; i++) {
690 group_block += s->s_blocks_per_group;
691 if (!ext2fs_bg_has_super(fs, i))
695 need = int_log10(group_block) + 2;
696 if (need > col_left) {
701 printf("%u", group_block);
707 * Set the S_CREATOR_OS field. Return true if OS is known,
710 static int set_os(struct ext2_super_block *sb, char *os)
713 sb->s_creator_os = atoi (os);
714 else if (strcasecmp(os, "linux") == 0)
715 sb->s_creator_os = EXT2_OS_LINUX;
716 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
717 sb->s_creator_os = EXT2_OS_HURD;
718 else if (strcasecmp(os, "masix") == 0)
719 sb->s_creator_os = EXT2_OS_MASIX;
725 #define PATH_SET "PATH=/sbin"
727 static void parse_raid_opts(const char *opts)
729 char *buf, *token, *next, *p, *arg;
736 fprintf(stderr, _("Couldn't allocate memory to parse "
741 for (token = buf; token && *token; token = next) {
742 p = strchr(token, ',');
748 arg = strchr(token, '=');
753 if (strcmp(token, "stride") == 0) {
758 fs_stride = strtoul(arg, &p, 0);
759 if (*p || (fs_stride == 0)) {
761 _("Invalid stride parameter.\n"));
769 fprintf(stderr, _("\nBad raid options specified.\n\n"
770 "Raid options are separated by commas, "
771 "and may take an argument which\n"
772 "\tis set off by an equals ('=') sign.\n\n"
773 "Valid raid options are:\n"
774 "\tstride=<stride length in blocks>\n\n"));
779 static __u32 ok_features[3] = {
780 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
781 EXT2_FEATURE_COMPAT_DIR_INDEX, /* Compat */
782 EXT2_FEATURE_INCOMPAT_FILETYPE| /* Incompat */
783 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
784 EXT2_FEATURE_INCOMPAT_META_BG,
785 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER /* R/O compat */
789 static void PRS(int argc, char *argv[])
797 int reserved_ratio = 5;
798 ext2_ino_t num_inodes = 0;
800 char * oldpath = getenv("PATH");
801 char * raid_opts = 0;
802 const char * fs_type = 0;
803 int default_features = 1;
810 /* Update our PATH to include /sbin */
814 newpath = malloc(sizeof (PATH_SET) + 1 + strlen (oldpath));
815 strcpy (newpath, PATH_SET);
816 strcat (newpath, ":");
817 strcat (newpath, oldpath);
822 tmp = getenv("MKE2FS_SYNC");
824 sync_kludge = atoi(tmp);
826 /* Determine the system page size if possible */
828 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
829 #define _SC_PAGESIZE _SC_PAGE_SIZE
832 sysval = sysconf(_SC_PAGESIZE);
834 sys_page_size = sysval;
835 #endif /* _SC_PAGESIZE */
836 #endif /* HAVE_SYSCONF */
838 setbuf(stdout, NULL);
839 setbuf(stderr, NULL);
840 initialize_ext2_error_table();
841 memset(¶m, 0, sizeof(struct ext2_super_block));
842 param.s_rev_level = 1; /* Create revision 1 filesystems now */
843 param.s_feature_incompat |= EXT2_FEATURE_INCOMPAT_FILETYPE;
844 param.s_feature_ro_compat |= EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
846 param.s_feature_compat |= EXT2_FEATURE_COMPAT_DIR_INDEX;
854 if ((ut.release[0] == '1') ||
855 (ut.release[0] == '2' && ut.release[1] == '.' &&
856 ut.release[2] < '2' && ut.release[3] == '.')) {
857 param.s_rev_level = 0;
858 param.s_feature_incompat = 0;
859 param.s_feature_compat = 0;
860 param.s_feature_ro_compat = 0;
863 fprintf (stderr, "mke2fs %s (%s)\n",
864 E2FSPROGS_VERSION, E2FSPROGS_DATE);
867 program_name = get_progname(*argv);
869 /* If called as mkfs.ext3, create a journal inode */
870 if (!strcmp(program_name, "mkfs.ext3"))
874 while ((c = getopt (argc, argv,
875 "b:cf:g:i:jl:m:no:qr:R:s:tvI:J:ST:FL:M:N:O:V")) != EOF)
878 blocksize = strtoul(optarg, &tmp, 0);
879 if (blocksize < EXT2_MIN_BLOCK_SIZE ||
880 blocksize > EXT2_MAX_BLOCK_SIZE || *tmp) {
881 com_err(program_name, 0,
882 _("bad block size - %s"), optarg);
885 if (blocksize > 4096)
886 fprintf(stderr, _("Warning: blocksize %d not "
887 "usable on most systems.\n"),
889 param.s_log_block_size =
890 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
892 case 'c': /* Check for bad blocks */
893 case 't': /* deprecated */
897 size = strtoul(optarg, &tmp, 0);
898 if (size < EXT2_MIN_BLOCK_SIZE ||
899 size > EXT2_MAX_BLOCK_SIZE || *tmp) {
900 com_err(program_name, 0,
901 _("bad fragment size - %s"),
905 param.s_log_frag_size =
906 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
907 fprintf(stderr, _("Warning: fragments not supported. "
908 "Ignoring -f option\n"));
911 param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
913 com_err(program_name, 0,
914 _("Illegal number for blocks per group"));
917 if ((param.s_blocks_per_group % 8) != 0) {
918 com_err(program_name, 0,
919 _("blocks per group must be multiple of 8"));
924 inode_ratio = strtoul(optarg, &tmp, 0);
925 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
926 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
928 com_err(program_name, 0,
929 _("bad inode ratio %s (min %d/max %d"),
930 optarg, EXT2_MIN_BLOCK_SIZE,
931 EXT2_MAX_BLOCK_SIZE);
936 parse_journal_opts(optarg);
939 param.s_feature_compat |=
940 EXT3_FEATURE_COMPAT_HAS_JOURNAL;
945 bad_blocks_filename = malloc(strlen(optarg)+1);
946 if (!bad_blocks_filename) {
947 com_err(program_name, ENOMEM,
948 _("in malloc for bad_blocks_filename"));
951 strcpy(bad_blocks_filename, optarg);
954 reserved_ratio = strtoul(optarg, &tmp, 0);
955 if (reserved_ratio > 50 || *tmp) {
956 com_err(program_name, 0,
957 _("bad reserved blocks percent - %s"),
969 param.s_rev_level = atoi(optarg);
970 if (param.s_rev_level == EXT2_GOOD_OLD_REV) {
971 param.s_feature_incompat = 0;
972 param.s_feature_compat = 0;
973 param.s_feature_ro_compat = 0;
976 case 's': /* deprecated */
978 param.s_feature_ro_compat |=
979 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
981 param.s_feature_ro_compat &=
982 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
984 #ifdef EXT2_DYNAMIC_REV
986 inode_size = strtoul(optarg, &tmp, 0);
988 com_err(program_name, 0,
989 _("bad inode size - %s"), optarg);
995 num_inodes = atoi(optarg);
1007 volume_label = optarg;
1013 if (!strcmp(optarg, "none") || default_features) {
1014 param.s_feature_compat = 0;
1015 param.s_feature_incompat = 0;
1016 param.s_feature_ro_compat = 0;
1017 default_features = 0;
1019 if (!strcmp(optarg, "none"))
1021 if (e2p_edit_feature(optarg,
1022 ¶m.s_feature_compat,
1025 _("Invalid filesystem option set: %s\n"), optarg);
1039 /* Print version number and exit */
1040 fprintf(stderr, _("\tUsing %s\n"),
1041 error_message(EXT2_ET_BASE));
1048 device_name = argv[optind];
1050 if (optind < argc) {
1051 unsigned long tmp2 = strtoul(argv[optind++], &tmp, 0);
1053 if ((*tmp) || (tmp2 > 0xfffffffful)) {
1054 com_err(program_name, 0, _("bad blocks count - %s"),
1058 param.s_blocks_count = tmp2;
1064 parse_raid_opts(raid_opts);
1067 * If there's no blocksize specified and there is a journal
1068 * device, use it to figure out the blocksize
1070 if (blocksize == 0 && journal_device) {
1073 retval = ext2fs_open(journal_device,
1074 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1075 0, unix_io_manager, &jfs);
1077 com_err(program_name, retval,
1078 _("while trying to open journal device %s\n"),
1082 blocksize = jfs->blocksize;
1083 param.s_log_block_size =
1084 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1088 if (blocksize > sys_page_size) {
1090 com_err(program_name, 0,
1091 _("%d-byte blocks too big for system (max %d)"),
1092 blocksize, sys_page_size);
1095 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
1096 "(max %d), forced to continue\n"),
1097 blocksize, sys_page_size);
1100 if (param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1102 fs_type = "journal";
1104 param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
1105 param.s_feature_compat = 0;
1106 param.s_feature_ro_compat = 0;
1108 if (param.s_rev_level == EXT2_GOOD_OLD_REV &&
1109 (param.s_feature_compat || param.s_feature_ro_compat ||
1110 param.s_feature_incompat))
1111 param.s_rev_level = 1; /* Create a revision 1 filesystem */
1114 check_plausibility(device_name);
1115 check_mount(device_name, force, _("filesystem"));
1117 param.s_log_frag_size = param.s_log_block_size;
1119 if (noaction && param.s_blocks_count) {
1120 dev_size = param.s_blocks_count;
1123 retval = ext2fs_get_device_size(device_name,
1124 EXT2_BLOCK_SIZE(¶m),
1126 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1127 com_err(program_name, retval,
1128 _("while trying to determine filesystem size"));
1131 if (!param.s_blocks_count) {
1132 if (retval == EXT2_ET_UNIMPLEMENTED) {
1133 com_err(program_name, 0,
1134 _("Couldn't determine device size; you "
1135 "must specify\nthe size of the "
1139 if (dev_size == 0) {
1140 com_err(program_name, 0,
1141 _("Device size reported to be zero. "
1142 "Invalid partition specified, or\n\t"
1143 "partition table wasn't reread "
1144 "after running fdisk, due to\n\t"
1145 "a modified partition being busy "
1146 "and in use. You may need to reboot\n\t"
1147 "to re-read your partition table.\n"
1151 param.s_blocks_count = dev_size;
1154 } else if (!force && (param.s_blocks_count > dev_size)) {
1155 com_err(program_name, 0,
1156 _("Filesystem larger than apparent filesystem size."));
1161 * If the user asked for HAS_JOURNAL, then make sure a journal
1164 if ((param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
1168 /* Set first meta blockgroup via an environment variable */
1169 /* (this is mostly for debugging purposes) */
1170 if ((param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1171 ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
1172 param.s_first_meta_bg = atoi(tmp);
1174 set_fs_defaults(fs_type, ¶m, blocksize, &inode_ratio);
1176 if (param.s_blocks_per_group) {
1177 if (param.s_blocks_per_group < 256 ||
1178 param.s_blocks_per_group > 8 * EXT2_BLOCK_SIZE(¶m)) {
1179 com_err(program_name, 0,
1180 _("blocks per group count out of range"));
1186 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
1187 inode_size > EXT2_BLOCK_SIZE(¶m) ||
1188 inode_size & (inode_size - 1)) {
1189 com_err(program_name, 0,
1190 _("bad inode size %d (min %d/max %d)"),
1191 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
1192 EXT2_BLOCK_SIZE(¶m));
1195 if (inode_size != EXT2_GOOD_OLD_INODE_SIZE)
1196 fprintf(stderr, _("Warning: %d-byte inodes not usable "
1197 "on most systems\n"),
1199 param.s_inode_size = inode_size;
1203 * Calculate number of inodes based on the inode ratio
1205 param.s_inodes_count = num_inodes ? num_inodes :
1206 ((__u64) param.s_blocks_count * EXT2_BLOCK_SIZE(¶m))
1210 * Calculate number of blocks to reserve
1212 param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100;
1216 int main (int argc, char *argv[])
1218 errcode_t retval = 0;
1220 badblocks_list bb_list = 0;
1225 setlocale(LC_MESSAGES, "");
1226 setlocale(LC_CTYPE, "");
1227 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1228 textdomain(NLS_CAT_NAME);
1233 * Initialize the superblock....
1235 retval = ext2fs_initialize(device_name, 0, ¶m,
1236 unix_io_manager, &fs);
1238 com_err(device_name, retval, _("while setting up superblock"));
1243 * Wipe out the old on-disk superblock
1246 zap_sector(fs, 2, 6);
1249 * Generate a UUID for it...
1251 uuid_generate(fs->super->s_uuid);
1254 * Initialize the directory index variables
1256 fs->super->s_def_hash_version = EXT2_HASH_TEA;
1257 uuid_generate((unsigned char *) fs->super->s_hash_seed);
1260 * Add "jitter" to the superblock's check interval so that we
1261 * don't check all the filesystems at the same time. We use a
1262 * kludgy hack of using the UUID to derive a random jitter value.
1264 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
1265 val += fs->super->s_uuid[i];
1266 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
1269 * Override the creator OS, if applicable
1271 if (creator_os && !set_os(fs->super, creator_os)) {
1272 com_err (program_name, 0, _("unknown os - %s"), creator_os);
1277 * For the Hurd, we will turn off filetype since it doesn't
1280 if (fs->super->s_creator_os == EXT2_OS_HURD)
1281 fs->super->s_feature_incompat &=
1282 ~EXT2_FEATURE_INCOMPAT_FILETYPE;
1285 * Set the volume label...
1288 memset(fs->super->s_volume_name, 0,
1289 sizeof(fs->super->s_volume_name));
1290 strncpy(fs->super->s_volume_name, volume_label,
1291 sizeof(fs->super->s_volume_name));
1295 * Set the last mount directory
1298 memset(fs->super->s_last_mounted, 0,
1299 sizeof(fs->super->s_last_mounted));
1300 strncpy(fs->super->s_last_mounted, mount_dir,
1301 sizeof(fs->super->s_last_mounted));
1304 if (!quiet || noaction)
1310 if (fs->super->s_feature_incompat &
1311 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1312 create_journal_dev(fs);
1313 exit(ext2fs_close(fs) ? 1 : 0);
1316 if (bad_blocks_filename)
1317 read_bb_file(fs, &bb_list, bad_blocks_filename);
1319 test_disk(fs, &bb_list);
1321 handle_bad_blocks(fs, bb_list);
1322 fs->stride = fs_stride;
1323 retval = ext2fs_allocate_tables(fs);
1325 com_err(program_name, retval,
1326 _("while trying to allocate filesystem tables"));
1330 fs->super->s_state |= EXT2_ERROR_FS;
1331 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
1333 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
1334 int rsv = 65536 / fs->blocksize;
1335 unsigned long blocks = fs->super->s_blocks_count;
1336 unsigned long start;
1339 #ifdef ZAP_BOOTBLOCK
1340 zap_sector(fs, 0, 2);
1344 * Wipe out any old MD RAID (or other) metadata at the end
1345 * of the device. This will also verify that the device is
1346 * as large as we think. Be careful with very small devices.
1348 start = (blocks & ~(rsv - 1));
1352 retval = zero_blocks(fs, start, blocks - start,
1353 NULL, &ret_blk, NULL);
1356 com_err(program_name, retval,
1357 _("while zeroing block %u at end of filesystem"),
1360 write_inode_tables(fs);
1361 create_root_dir(fs);
1362 create_lost_and_found(fs);
1364 create_bad_block_inode(fs, bb_list);
1367 if (journal_device) {
1371 check_plausibility(journal_device);
1372 check_mount(journal_device, force, _("journal"));
1374 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
1375 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1376 fs->blocksize, unix_io_manager, &jfs);
1378 com_err(program_name, retval,
1379 _("while trying to open journal device %s\n"),
1384 printf(_("Adding journal to device %s: "),
1388 retval = ext2fs_add_journal_device(fs, jfs);
1390 com_err (program_name, retval,
1391 _("\n\twhile trying to add journal to device %s"),
1396 printf(_("done\n"));
1398 free(journal_device);
1399 } else if (journal_size) {
1400 journal_blocks = figure_journal_size(journal_size, fs);
1402 if (!journal_blocks) {
1403 fs->super->s_feature_compat &=
1404 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1408 printf(_("Creating journal (%d blocks): "),
1412 retval = ext2fs_add_journal_inode(fs, journal_blocks,
1415 com_err (program_name, retval,
1416 _("\n\twhile trying to create journal"));
1420 printf(_("done\n"));
1425 printf(_("Writing superblocks and "
1426 "filesystem accounting information: "));
1427 retval = ext2fs_flush(fs);
1430 _("\nWarning, had trouble writing out superblocks."));
1433 printf(_("done\n\n"));
1434 print_check_message(fs);
1436 val = ext2fs_close(fs);
1437 return (retval || val) ? 1 : 0;