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Changes for kernel and Busybox
[tomato.git] / release / src / router / busybox / e2fsprogs / mke2fs.c
blob6d726d8fa45f138f45eba0f80709e1193be0bfa0
1 /* vi: set sw=4 ts=4: */
2 /*
3 * mke2fs.c - Make a ext2fs filesystem.
4 *
5 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
6 * 2003, 2004, 2005 by Theodore Ts'o.
7 *
8 * Licensed under GPLv2, see file LICENSE in this source tree.
9 */
10
11 /* Usage: mke2fs [options] device
12 *
13 * The device may be a block device or a image of one, but this isn't
14 * enforced (but it's not much fun on a character device :-).
15 */
16
17 //usage:#define mke2fs_trivial_usage
18 //usage: "[-c|-l filename] [-b block-size] [-f fragment-size] [-g blocks-per-group] "
19 //usage: "[-i bytes-per-inode] [-j] [-J journal-options] [-N number-of-inodes] [-n] "
20 //usage: "[-m reserved-blocks-percentage] [-o creator-os] [-O feature[,...]] [-q] "
21 //usage: "[r fs-revision-level] [-E extended-options] [-v] [-F] [-L volume-label] "
22 //usage: "[-M last-mounted-directory] [-S] [-T filesystem-type] "
23 //usage: "device [blocks-count]"
24 //usage:
25 //usage:#define mke2fs_full_usage "\n\n"
26 //usage: " -b size Block size in bytes"
27 //usage: "\n -c Check for bad blocks before creating"
28 //usage: "\n -E opts Set extended options"
29 //usage: "\n -f size Fragment size in bytes"
30 //usage: "\n -F Force (ignore sanity checks)"
31 //usage: "\n -g num Number of blocks in a block group"
32 //usage: "\n -i ratio The bytes/inode ratio"
33 //usage: "\n -j Create a journal (ext3)"
34 //usage: "\n -J opts Set journal options (size/device)"
35 //usage: "\n -l file Read bad blocks list from file"
36 //usage: "\n -L lbl Set the volume label"
37 //usage: "\n -m percent Percent of fs blocks to reserve for admin"
38 //usage: "\n -M dir Set last mounted directory"
39 //usage: "\n -n Do not actually create anything"
40 //usage: "\n -N num Number of inodes to create"
41 //usage: "\n -o os Set the 'creator os' field"
42 //usage: "\n -O features Dir_index/filetype/has_journal/journal_dev/sparse_super"
43 //usage: "\n -q Quiet"
44 //usage: "\n -r rev Set filesystem revision"
45 //usage: "\n -S Write superblock and group descriptors only"
46 //usage: "\n -T fs-type Set usage type (news/largefile/largefile4)"
47 //usage: "\n -v Verbose"
48 //usage:
49 //applet:IF_MKE2FS(APPLET(mke2fs, BB_DIR_SBIN, BB_SUID_DROP))
50 //applet:IF_MKE2FS(APPLET_ODDNAME(mkfs.ext2, mke2fs, BB_DIR_SBIN, BB_SUID_DROP, mke2fs))
51 //applet:IF_MKE2FS(APPLET_ODDNAME(mkfs.ext3, mke2fs, BB_DIR_SBIN, BB_SUID_DROP, mke2fs))
52 //applet:IF_MKE2FS(APPLET(tune2fs, BB_DIR_SBIN, BB_SUID_DROP))
53
54 #include <stdio.h>
55 #include <string.h>
56 #include <fcntl.h>
57 #include <ctype.h>
58 #include <time.h>
59 #include <getopt.h>
60 #include <unistd.h>
61 #include <stdlib.h>
62 #include <errno.h>
63 #include <mntent.h>
64 #include <sys/ioctl.h>
65 #include <sys/types.h>
66
67 #include "e2fsbb.h"
68 #include "ext2fs/ext2_fs.h"
69 #include "uuid/uuid.h"
70 #include "e2p/e2p.h"
71 #include "ext2fs/ext2fs.h"
72 #include "util.h"
73
74 #define STRIDE_LENGTH 8
75
76 #ifndef __sparc__
77 #define ZAP_BOOTBLOCK
78 #endif
79
80 static const char * device_name;
81
82 /* Command line options */
83 static int cflag;
84 static int quiet;
85 static int super_only;
86 static int force;
87 static int noaction;
88 static int journal_size;
89 static int journal_flags;
90 static const char *bad_blocks_filename;
91 static __u32 fs_stride;
92
93 static struct ext2_super_block param;
94 static char *creator_os;
95 static char *volume_label;
96 static char *mount_dir;
97 static char *journal_device = NULL;
98 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
99
100 static int sys_page_size = 4096;
101 static int linux_version_code = 0;
102
103 static int int_log2(int arg)
104 {
105 int l = 0;
106
107 arg >>= 1;
108 while (arg) {
109 l++;
110 arg >>= 1;
111 }
112 return l;
113 }
114
115 static int int_log10(unsigned int arg)
116 {
117 int l;
118
119 for (l = 0; arg; l++)
120 arg = arg / 10;
121 return l;
122 }
123
124 /*
125 * This function sets the default parameters for a filesystem
126 *
127 * The type is specified by the user. The size is the maximum size
128 * (in megabytes) for which a set of parameters applies, with a size
129 * of zero meaning that it is the default parameter for the type.
130 * Note that order is important in the table below.
131 */
132 #define DEF_MAX_BLOCKSIZE -1
133 static const char default_str[] = "default";
134 struct mke2fs_defaults {
135 const char *type;
136 int size;
137 int blocksize;
138 int inode_ratio;
139 };
140
141 static const struct mke2fs_defaults settings[] = {
142 { default_str, 0, 4096, 8192 },
143 { default_str, 512, 1024, 4096 },
144 { default_str, 3, 1024, 8192 },
145 { "journal", 0, 4096, 8192 },
146 { "news", 0, 4096, 4096 },
147 { "largefile", 0, 4096, 1024 * 1024 },
148 { "largefile4", 0, 4096, 4096 * 1024 },
149 { 0, 0, 0, 0},
150 };
151
152 static void set_fs_defaults(const char *fs_type,
153 struct ext2_super_block *super,
154 int blocksize, int sector_size,
155 int *inode_ratio)
156 {
157 int megs;
158 int ratio = 0;
159 const struct mke2fs_defaults *p;
160 int use_bsize = 1024;
161
162 megs = super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) / 1024;
163 if (inode_ratio)
164 ratio = *inode_ratio;
165 if (!fs_type)
166 fs_type = default_str;
167 for (p = settings; p->type; p++) {
168 if ((strcmp(p->type, fs_type) != 0) &&
169 (strcmp(p->type, default_str) != 0))
170 continue;
171 if ((p->size != 0) && (megs > p->size))
172 continue;
173 if (ratio == 0)
174 *inode_ratio = p->inode_ratio < blocksize ?
175 blocksize : p->inode_ratio;
176 use_bsize = p->blocksize;
177 }
178 if (blocksize <= 0) {
179 if (use_bsize == DEF_MAX_BLOCKSIZE) {
180 use_bsize = sys_page_size;
181 if ((linux_version_code < (2*65536 + 6*256)) &&
182 (use_bsize > 4096))
183 use_bsize = 4096;
184 }
185 if (sector_size && use_bsize < sector_size)
186 use_bsize = sector_size;
187 if ((blocksize < 0) && (use_bsize < (-blocksize)))
188 use_bsize = -blocksize;
189 blocksize = use_bsize;
190 super->s_blocks_count /= blocksize / 1024;
191 }
192 super->s_log_frag_size = super->s_log_block_size =
193 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
194 }
195
196
197 /*
198 * Helper function for read_bb_file and test_disk
199 */
200 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
201 {
202 bb_error_msg("Bad block %u out of range; ignored", blk);
203 }
204
205 /*
206 * Busybox stuff
207 */
208 static void mke2fs_error_msg_and_die(int retval, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
209 static void mke2fs_error_msg_and_die(int retval, const char *fmt, ...)
210 {
211 va_list ap;
212
213 if (retval) {
214 va_start(ap, fmt);
215 fprintf(stderr, "\nCould not ");
216 vfprintf(stderr, fmt, ap);
217 fprintf(stderr, "\n");
218 va_end(ap);
219 exit(EXIT_FAILURE);
220 }
221 }
222
223 static void mke2fs_verbose(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
224 static void mke2fs_verbose(const char *fmt, ...)
225 {
226 va_list ap;
227
228 if (!quiet) {
229 va_start(ap, fmt);
230 vfprintf(stdout, fmt, ap);
231 fflush(stdout);
232 va_end(ap);
233 }
234 }
235
236 static void mke2fs_verbose_done(void)
237 {
238 mke2fs_verbose("done\n");
239 }
240
241 static void mke2fs_warning_msg(int retval, char *fmt, ... ) __attribute__ ((format (printf, 2, 3)));
242 static void mke2fs_warning_msg(int retval, char *fmt, ... )
243 {
244 va_list ap;
245
246 if (retval) {
247 va_start(ap, fmt);
248 fprintf(stderr, "\nWarning: ");
249 vfprintf(stderr, fmt, ap);
250 fprintf(stderr, "\n");
251 va_end(ap);
252 }
253 }
254
255 /*
256 * Reads the bad blocks list from a file
257 */
258 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
259 const char *bad_blocks_file)
260 {
261 FILE *f;
262 errcode_t retval;
263
264 f = xfopen_for_read(bad_blocks_file);
265 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
266 fclose (f);
267 mke2fs_error_msg_and_die(retval, "read bad blocks from list");
268 }
269
270 /*
271 * Runs the badblocks program to test the disk
272 */
273 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
274 {
275 FILE *f;
276 errcode_t retval;
277 char buf[1024];
278
279 sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
280 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
281 fs->device_name, fs->super->s_blocks_count);
282 mke2fs_verbose("Running command: %s\n", buf);
283 f = popen(buf, "r");
284 if (!f) {
285 bb_perror_msg_and_die("can't run '%s'", buf);
286 }
287 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
288 pclose(f);
289 mke2fs_error_msg_and_die(retval, "read bad blocks from program");
290 }
291
292 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
293 {
294 dgrp_t i;
295 blk_t j;
296 unsigned must_be_good;
297 blk_t blk;
298 badblocks_iterate bb_iter;
299 errcode_t retval;
300 blk_t group_block;
301 int group;
302 int group_bad;
303
304 if (!bb_list)
305 return;
306
307 /*
308 * The primary superblock and group descriptors *must* be
309 * good; if not, abort.
310 */
311 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
312 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
313 if (ext2fs_badblocks_list_test(bb_list, i)) {
314 bb_error_msg_and_die(
315 "Block %d in primary superblock/group descriptor area bad\n"
316 "Blocks %d through %d must be good in order to build a filesystem\n"
317 "Aborting ...", i, fs->super->s_first_data_block, must_be_good);
318 }
319 }
320
321 /*
322 * See if any of the bad blocks are showing up in the backup
323 * superblocks and/or group descriptors. If so, issue a
324 * warning and adjust the block counts appropriately.
325 */
326 group_block = fs->super->s_first_data_block +
327 fs->super->s_blocks_per_group;
328
329 for (i = 1; i < fs->group_desc_count; i++) {
330 group_bad = 0;
331 for (j=0; j < fs->desc_blocks+1; j++) {
332 if (ext2fs_badblocks_list_test(bb_list,
333 group_block + j)) {
334 mke2fs_warning_msg(!group_bad,
335 "the backup superblock/group descriptors at block %d contain\n"
336 "bad blocks\n", group_block);
337 group_bad++;
338 group = ext2fs_group_of_blk(fs, group_block+j);
339 fs->group_desc[group].bg_free_blocks_count++;
340 fs->super->s_free_blocks_count++;
341 }
342 }
343 group_block += fs->super->s_blocks_per_group;
344 }
345
346 /*
347 * Mark all the bad blocks as used...
348 */
349 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
350 mke2fs_error_msg_and_die(retval, "mark bad blocks as used");
351
352 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
353 ext2fs_mark_block_bitmap(fs->block_map, blk);
354 ext2fs_badblocks_list_iterate_end(bb_iter);
355 }
356
357 /*
358 * These functions implement a generalized progress meter.
359 */
360 struct progress_struct {
361 char format[20];
362 char backup[80];
363 __u32 max;
364 int skip_progress;
365 };
366
367 static void progress_init(struct progress_struct *progress,
368 const char *label,__u32 max)
369 {
370 int i;
371
372 memset(progress, 0, sizeof(struct progress_struct));
373 if (quiet)
374 return;
375
376 /*
377 * Figure out how many digits we need
378 */
379 i = int_log10(max);
380 sprintf(progress->format, "%%%dd/%%%dld", i, i);
381 memset(progress->backup, '\b', sizeof(progress->backup)-1);
382 progress->backup[sizeof(progress->backup)-1] = 0;
383 if ((2*i)+1 < (int) sizeof(progress->backup))
384 progress->backup[(2*i)+1] = 0;
385 progress->max = max;
386
387 progress->skip_progress = 0;
388 if (getenv("MKE2FS_SKIP_PROGRESS"))
389 progress->skip_progress++;
390
391 fputs(label, stdout);
392 fflush(stdout);
393 }
394
395 static void progress_update(struct progress_struct *progress, __u32 val)
396 {
397 if ((progress->format[0] == 0) || progress->skip_progress)
398 return;
399 printf(progress->format, val, progress->max);
400 fputs(progress->backup, stdout);
401 }
402
403 static void progress_close(struct progress_struct *progress)
404 {
405 if (progress->format[0] == 0)
406 return;
407 printf("%-28s\n", "done");
408 }
409
410
411 /*
412 * Helper function which zeros out _num_ blocks starting at _blk_. In
413 * case of an error, the details of the error is returned via _ret_blk_
414 * and _ret_count_ if they are non-NULL pointers. Returns 0 on
415 * success, and an error code on an error.
416 *
417 * As a special case, if the first argument is NULL, then it will
418 * attempt to free the static zeroizing buffer. (This is to keep
419 * programs that check for memory leaks happy.)
420 */
421 static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num,
422 struct progress_struct *progress,
423 blk_t *ret_blk, int *ret_count)
424 {
425 int j, count, next_update, next_update_incr;
426 static char *buf;
427 errcode_t retval;
428
429 /* If fs is null, clean up the static buffer and return */
430 if (!fs) {
431 if (buf) {
432 free(buf);
433 buf = 0;
434 }
435 return 0;
436 }
437 /* Allocate the zeroizing buffer if necessary */
438 if (!buf) {
439 buf = xzalloc(fs->blocksize * STRIDE_LENGTH);
440 }
441 /* OK, do the write loop */
442 next_update = 0;
443 next_update_incr = num / 100;
444 if (next_update_incr < 1)
445 next_update_incr = 1;
446 for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
447 count = num - j;
448 if (count > STRIDE_LENGTH)
449 count = STRIDE_LENGTH;
450 retval = io_channel_write_blk(fs->io, blk, count, buf);
451 if (retval) {
452 if (ret_count)
453 *ret_count = count;
454 if (ret_blk)
455 *ret_blk = blk;
456 return retval;
457 }
458 if (progress && j > next_update) {
459 next_update += num / 100;
460 progress_update(progress, blk);
461 }
462 }
463 return 0;
464 }
465
466 static void write_inode_tables(ext2_filsys fs)
467 {
468 errcode_t retval;
469 blk_t blk;
470 dgrp_t i;
471 int num;
472 struct progress_struct progress;
473
474 if (quiet)
475 memset(&progress, 0, sizeof(progress));
476 else
477 progress_init(&progress, "Writing inode tables: ",
478 fs->group_desc_count);
479
480 for (i = 0; i < fs->group_desc_count; i++) {
481 progress_update(&progress, i);
482
483 blk = fs->group_desc[i].bg_inode_table;
484 num = fs->inode_blocks_per_group;
485
486 retval = zero_blocks(fs, blk, num, 0, &blk, &num);
487 mke2fs_error_msg_and_die(retval,
488 "write %d blocks in inode table starting at %d.",
489 num, blk);
490 if (sync_kludge) {
491 if (sync_kludge == 1)
492 sync();
493 else if ((i % sync_kludge) == 0)
494 sync();
495 }
496 }
497 zero_blocks(0, 0, 0, 0, 0, 0);
498 progress_close(&progress);
499 }
500
501 static void create_root_dir(ext2_filsys fs)
502 {
503 errcode_t retval;
504 struct ext2_inode inode;
505
506 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
507 mke2fs_error_msg_and_die(retval, "create root dir");
508 if (geteuid()) {
509 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
510 mke2fs_error_msg_and_die(retval, "read root inode");
511 inode.i_uid = getuid();
512 if (inode.i_uid)
513 inode.i_gid = getgid();
514 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
515 mke2fs_error_msg_and_die(retval, "set root inode ownership");
516 }
517 }
518
519 static void create_lost_and_found(ext2_filsys fs)
520 {
521 errcode_t retval;
522 ext2_ino_t ino;
523 const char *name = "lost+found";
524 int i = 1;
525 char *msg = "create";
526 int lpf_size = 0;
527
528 fs->umask = 077;
529 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
530 if (retval) {
531 goto CREATE_LOST_AND_FOUND_ERROR;
532 }
533
534 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
535 if (retval) {
536 msg = "lookup";
537 goto CREATE_LOST_AND_FOUND_ERROR;
538 }
539
540 for (; i < EXT2_NDIR_BLOCKS; i++) {
541 if ((lpf_size += fs->blocksize) >= 16*1024)
542 break;
543 retval = ext2fs_expand_dir(fs, ino);
544 msg = "expand";
545 CREATE_LOST_AND_FOUND_ERROR:
546 mke2fs_error_msg_and_die(retval, "%s %s", msg, name);
547 }
548 }
549
550 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
551 {
552 errcode_t retval;
553
554 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO);
555 fs->group_desc[0].bg_free_inodes_count--;
556 fs->super->s_free_inodes_count--;
557 retval = ext2fs_update_bb_inode(fs, bb_list);
558 mke2fs_error_msg_and_die(retval, "set bad block inode");
559 }
560
561 static void reserve_inodes(ext2_filsys fs)
562 {
563 ext2_ino_t i;
564 int group;
565
566 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) {
567 ext2fs_mark_inode_bitmap(fs->inode_map, i);
568 group = ext2fs_group_of_ino(fs, i);
569 fs->group_desc[group].bg_free_inodes_count--;
570 fs->super->s_free_inodes_count--;
571 }
572 ext2fs_mark_ib_dirty(fs);
573 }
574
575 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
576 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
577 #define BSD_LABEL_OFFSET 64
578
579 static void zap_sector(ext2_filsys fs, int sect, int nsect)
580 {
581 char *buf;
582 char *fmt = "could not %s %d";
583 int retval;
584 unsigned int *magic;
585
586 buf = xmalloc(512*nsect);
587
588 if (sect == 0) {
589 /* Check for a BSD disklabel, and don't erase it if so */
590 retval = io_channel_read_blk(fs->io, 0, -512, buf);
591 if (retval)
592 mke2fs_warning_msg(retval, fmt, "read block", 0);
593 else {
594 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
595 if ((*magic == BSD_DISKMAGIC) ||
596 (*magic == BSD_MAGICDISK))
597 return;
598 }
599 }
600
601 memset(buf, 0, 512*nsect);
602 io_channel_set_blksize(fs->io, 512);
603 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf);
604 io_channel_set_blksize(fs->io, fs->blocksize);
605 free(buf);
606 mke2fs_warning_msg(retval, fmt, "erase sector", sect);
607 }
608
609 static void create_journal_dev(ext2_filsys fs)
610 {
611 struct progress_struct progress;
612 errcode_t retval;
613 char *buf;
614 char *fmt = "%s journal superblock";
615 blk_t blk;
616 int count;
617
618 retval = ext2fs_create_journal_superblock(fs,
619 fs->super->s_blocks_count, 0, &buf);
620 mke2fs_error_msg_and_die(retval, fmt, "init");
621 if (quiet)
622 memset(&progress, 0, sizeof(progress));
623 else
624 progress_init(&progress, "Zeroing journal device: ",
625 fs->super->s_blocks_count);
626
627 retval = zero_blocks(fs, 0, fs->super->s_blocks_count,
628 &progress, &blk, &count);
629 mke2fs_error_msg_and_die(retval, "zero journal device (block %u, count %d)",
630 blk, count);
631 zero_blocks(0, 0, 0, 0, 0, 0);
632
633 retval = io_channel_write_blk(fs->io,
634 fs->super->s_first_data_block+1,
635 1, buf);
636 mke2fs_error_msg_and_die(retval, fmt, "write");
637 progress_close(&progress);
638 }
639
640 static void show_stats(ext2_filsys fs)
641 {
642 struct ext2_super_block *s = fs->super;
643 char *os;
644 blk_t group_block;
645 dgrp_t i;
646 int need, col_left;
647
648 mke2fs_warning_msg((param.s_blocks_count != s->s_blocks_count),
649 "%d blocks unused\n", param.s_blocks_count - s->s_blocks_count);
650 os = e2p_os2string(fs->super->s_creator_os);
651 printf( "Filesystem label=%.*s\n"
652 "OS type: %s\n"
653 "Block size=%u (log=%u)\n"
654 "Fragment size=%u (log=%u)\n"
655 "%u inodes, %u blocks\n"
656 "%u blocks (%2.2f%%) reserved for the super user\n"
657 "First data block=%u\n",
658 (int) sizeof(s->s_volume_name),
659 s->s_volume_name,
660 os,
661 fs->blocksize, s->s_log_block_size,
662 fs->fragsize, s->s_log_frag_size,
663 s->s_inodes_count, s->s_blocks_count,
664 s->s_r_blocks_count, 100.0 * s->s_r_blocks_count / s->s_blocks_count,
665 s->s_first_data_block);
666 free(os);
667 if (s->s_reserved_gdt_blocks) {
668 printf("Maximum filesystem blocks=%lu\n",
669 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
670 (fs->blocksize / sizeof(struct ext2_group_desc)) *
671 s->s_blocks_per_group);
672 }
673 printf( "%u block group%s\n"
674 "%u blocks per group, %u fragments per group\n"
675 "%u inodes per group\n",
676 fs->group_desc_count, (fs->group_desc_count > 1) ? "s" : "",
677 s->s_blocks_per_group, s->s_frags_per_group,
678 s->s_inodes_per_group);
679 if (fs->group_desc_count == 1) {
680 bb_putchar('\n');
681 return;
682 }
683
684 printf("Superblock backups stored on blocks: ");
685 group_block = s->s_first_data_block;
686 col_left = 0;
687 for (i = 1; i < fs->group_desc_count; i++) {
688 group_block += s->s_blocks_per_group;
689 if (!ext2fs_bg_has_super(fs, i))
690 continue;
691 if (i != 1)
692 printf(", ");
693 need = int_log10(group_block) + 2;
694 if (need > col_left) {
695 printf("\n\t");
696 col_left = 72;
697 }
698 col_left -= need;
699 printf("%u", group_block);
700 }
701 puts("\n");
702 }
703
704 /*
705 * Set the S_CREATOR_OS field. Return true if OS is known,
706 * otherwise, 0.
707 */
708 static int set_os(struct ext2_super_block *sb, char *os)
709 {
710 if (isdigit (*os)) {
711 sb->s_creator_os = atoi(os);
712 return 1;
713 }
714
715 if ((sb->s_creator_os = e2p_string2os(os)) >= 0) {
716 return 1;
717 } else if (!strcasecmp("GNU", os)) {
718 sb->s_creator_os = EXT2_OS_HURD;
719 return 1;
720 }
721 return 0;
722 }
723
724 static void parse_extended_opts(struct ext2_super_block *sb_param,
725 const char *opts)
726 {
727 char *buf, *token, *next, *p, *arg;
728 int r_usage = 0;
729
730 buf = xstrdup(opts);
731 for (token = buf; token && *token; token = next) {
732 p = strchr(token, ',');
733 next = 0;
734 if (p) {
735 *p = 0;
736 next = p+1;
737 }
738 arg = strchr(token, '=');
739 if (arg) {
740 *arg = 0;
741 arg++;
742 }
743 if (strcmp(token, "stride") == 0) {
744 if (!arg) {
745 r_usage++;
746 continue;
747 }
748 fs_stride = strtoul(arg, &p, 0);
749 if (*p || (fs_stride == 0)) {
750 bb_error_msg("Invalid stride parameter: %s", arg);
751 r_usage++;
752 continue;
753 }
754 } else if (!strcmp(token, "resize")) {
755 unsigned long resize, bpg, rsv_groups;
756 unsigned long group_desc_count, desc_blocks;
757 unsigned int gdpb, blocksize;
758 int rsv_gdb;
759
760 if (!arg) {
761 r_usage++;
762 continue;
763 }
764
765 resize = parse_num_blocks(arg,
766 sb_param->s_log_block_size);
767
768 if (resize == 0) {
769 bb_error_msg("Invalid resize parameter: %s", arg);
770 r_usage++;
771 continue;
772 }
773 if (resize <= sb_param->s_blocks_count) {
774 bb_error_msg("The resize maximum must be greater "
775 "than the filesystem size");
776 r_usage++;
777 continue;
778 }
779
780 blocksize = EXT2_BLOCK_SIZE(sb_param);
781 bpg = sb_param->s_blocks_per_group;
782 if (!bpg)
783 bpg = blocksize * 8;
784 gdpb = blocksize / sizeof(struct ext2_group_desc);
785 group_desc_count = (sb_param->s_blocks_count +
786 bpg - 1) / bpg;
787 desc_blocks = (group_desc_count +
788 gdpb - 1) / gdpb;
789 rsv_groups = (resize + bpg - 1) / bpg;
790 rsv_gdb = (rsv_groups + gdpb - 1) / gdpb -
791 desc_blocks;
792 if (rsv_gdb > EXT2_ADDR_PER_BLOCK(sb_param))
793 rsv_gdb = EXT2_ADDR_PER_BLOCK(sb_param);
794
795 if (rsv_gdb > 0) {
796 sb_param->s_feature_compat |=
797 EXT2_FEATURE_COMPAT_RESIZE_INO;
798
799 sb_param->s_reserved_gdt_blocks = rsv_gdb;
800 }
801 } else
802 r_usage++;
803 }
804 if (r_usage) {
805 bb_error_msg_and_die(
806 "\nBad options specified.\n\n"
807 "Extended options are separated by commas, "
808 "and may take an argument which\n"
809 "\tis set off by an equals ('=') sign.\n\n"
810 "Valid extended options are:\n"
811 "\tstride=<stride length in blocks>\n"
812 "\tresize=<resize maximum size in blocks>\n");
813 }
814 }
815
816 static __u32 ok_features[3] = {
817 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
818 EXT2_FEATURE_COMPAT_RESIZE_INO |
819 EXT2_FEATURE_COMPAT_DIR_INDEX, /* Compat */
820 EXT2_FEATURE_INCOMPAT_FILETYPE| /* Incompat */
821 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
822 EXT2_FEATURE_INCOMPAT_META_BG,
823 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER /* R/O compat */
824 };
825
826 static int PRS(int argc, char **argv)
827 {
828 int c;
829 int size;
830 char * tmp;
831 int blocksize = 0;
832 int inode_ratio = 0;
833 int inode_size = 0;
834 int reserved_ratio = 5;
835 int sector_size = 0;
836 int show_version_only = 0;
837 ext2_ino_t num_inodes = 0;
838 errcode_t retval;
839 char * extended_opts = NULL;
840 const char * fs_type = NULL;
841 blk_t dev_size;
842 long sysval;
843
844 /* Update our PATH to include /sbin */
845 e2fs_set_sbin_path();
846
847 tmp = getenv("MKE2FS_SYNC");
848 if (tmp)
849 sync_kludge = atoi(tmp);
850
851 /* Determine the system page size if possible */
852 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
853 #define _SC_PAGESIZE _SC_PAGE_SIZE
854 #endif
855 #ifdef _SC_PAGESIZE
856 sysval = sysconf(_SC_PAGESIZE);
857 if (sysval > 0)
858 sys_page_size = sysval;
859 #endif /* _SC_PAGESIZE */
860
861 setbuf(stdout, NULL);
862 setbuf(stderr, NULL);
863 memset(&param, 0, sizeof(struct ext2_super_block));
864 param.s_rev_level = 1; /* Create revision 1 filesystems now */
865 param.s_feature_incompat |= EXT2_FEATURE_INCOMPAT_FILETYPE;
866 param.s_feature_ro_compat |= EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
867
868 #ifdef __linux__
869 linux_version_code = get_linux_version_code();
870 if (linux_version_code && linux_version_code < KERNEL_VERSION(2,2,0)) {
871 param.s_rev_level = 0;
872 param.s_feature_incompat = 0;
873 param.s_feature_compat = 0;
874 param.s_feature_ro_compat = 0;
875 }
876 #endif
877
878 /* If called as mkfs.ext3, create a journal inode */
879 if (last_char_is(applet_name, '3'))
880 journal_size = -1;
881
882 while ((c = getopt (argc, argv,
883 "b:cE:f:g:i:jl:m:no:qr:R:s:tvI:J:ST:FL:M:N:O:V")) != EOF) {
884 switch (c) {
885 case 'b':
886 blocksize = xatou_range(optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE);
887 mke2fs_warning_msg((blocksize > 4096),
888 "blocksize %d not usable on most systems",
889 blocksize);
890 param.s_log_block_size =
891 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
892 break;
893 case 'c': /* Check for bad blocks */
894 case 't': /* deprecated */
895 cflag++;
896 break;
897 case 'f':
898 size = xatou_range(optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE);
899 param.s_log_frag_size =
900 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
901 mke2fs_warning_msg(1, "fragments not supported. Ignoring -f option");
902 break;
903 case 'g':
904 param.s_blocks_per_group = xatou32(optarg);
905 if ((param.s_blocks_per_group % 8) != 0) {
906 bb_error_msg_and_die("blocks per group must be multiple of 8");
907 }
908 break;
909 case 'i':
910 /* Huh? is "* 1024" correct? */
911 inode_ratio = xatou_range(optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE * 1024);
912 break;
913 case 'J':
914 parse_journal_opts(&journal_device, &journal_flags, &journal_size, optarg);
915 break;
916 case 'j':
917 param.s_feature_compat |=
918 EXT3_FEATURE_COMPAT_HAS_JOURNAL;
919 if (!journal_size)
920 journal_size = -1;
921 break;
922 case 'l':
923 bad_blocks_filename = optarg;
924 break;
925 case 'm':
926 reserved_ratio = xatou_range(optarg, 0, 50);
927 break;
928 case 'n':
929 noaction++;
930 break;
931 case 'o':
932 creator_os = optarg;
933 break;
934 case 'r':
935 param.s_rev_level = xatoi_positive(optarg);
936 if (param.s_rev_level == EXT2_GOOD_OLD_REV) {
937 param.s_feature_incompat = 0;
938 param.s_feature_compat = 0;
939 param.s_feature_ro_compat = 0;
940 }
941 break;
942 case 's': /* deprecated */
943 if (xatou(optarg))
944 param.s_feature_ro_compat |=
945 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
946 else
947 param.s_feature_ro_compat &=
948 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
949 break;
950 #ifdef EXT2_DYNAMIC_REV
951 case 'I':
952 inode_size = xatoi_positive(optarg);
953 break;
954 #endif
955 case 'N':
956 num_inodes = xatoi_positive(optarg);
957 break;
958 case 'v':
959 quiet = 0;
960 break;
961 case 'q':
962 quiet = 1;
963 break;
964 case 'F':
965 force = 1;
966 break;
967 case 'L':
968 volume_label = optarg;
969 break;
970 case 'M':
971 mount_dir = optarg;
972 break;
973 case 'O':
974 if (!strcmp(optarg, "none")) {
975 param.s_feature_compat = 0;
976 param.s_feature_incompat = 0;
977 param.s_feature_ro_compat = 0;
978 break;
979 }
980 if (e2p_edit_feature(optarg,
981 &param.s_feature_compat,
982 ok_features)) {
983 bb_error_msg_and_die("Invalid filesystem option set: %s", optarg);
984 }
985 break;
986 case 'E':
987 case 'R':
988 extended_opts = optarg;
989 break;
990 case 'S':
991 super_only = 1;
992 break;
993 case 'T':
994 fs_type = optarg;
995 break;
996 case 'V':
997 /* Print version number and exit */
998 show_version_only = 1;
999 quiet = 0;
1000 break;
1001 default:
1002 bb_show_usage();
1003 }
1004 }
1005 if ((optind == argc) /*&& !show_version_only*/)
1006 bb_show_usage();
1007 device_name = argv[optind++];
1008
1009 mke2fs_verbose("mke2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
1010
1011 if (show_version_only) {
1012 return 0;
1013 }
1014
1015 /*
1016 * If there's no blocksize specified and there is a journal
1017 * device, use it to figure out the blocksize
1018 */
1019 if (blocksize <= 0 && journal_device) {
1020 ext2_filsys jfs;
1021 io_manager io_ptr;
1022
1023 #ifdef CONFIG_TESTIO_DEBUG
1024 io_ptr = test_io_manager;
1025 test_io_backing_manager = unix_io_manager;
1026 #else
1027 io_ptr = unix_io_manager;
1028 #endif
1029 retval = ext2fs_open(journal_device,
1030 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1031 0, io_ptr, &jfs);
1032 mke2fs_error_msg_and_die(retval, "open journal device %s", journal_device);
1033 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1034 bb_error_msg_and_die(
1035 "Journal dev blocksize (%d) smaller than "
1036 "minimum blocksize %d\n", jfs->blocksize,
1037 -blocksize);
1038 }
1039 blocksize = jfs->blocksize;
1040 param.s_log_block_size =
1041 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1042 ext2fs_close(jfs);
1043 }
1044
1045 if (blocksize > sys_page_size) {
1046 mke2fs_warning_msg(1, "%d-byte blocks too big for system (max %d)",
1047 blocksize, sys_page_size);
1048 if (!force) {
1049 proceed_question();
1050 }
1051 bb_error_msg("Forced to continue");
1052 }
1053 mke2fs_warning_msg(((blocksize > 4096) &&
1054 (param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL)),
1055 "some 2.4 kernels do not support "
1056 "blocksizes greater than 4096 using ext3.\n"
1057 "Use -b 4096 if this is an issue for you\n");
1058
1059 if (optind < argc) {
1060 param.s_blocks_count = parse_num_blocks(argv[optind++],
1061 param.s_log_block_size);
1062 mke2fs_error_msg_and_die(!param.s_blocks_count, "invalid blocks count - %s", argv[optind - 1]);
1063 }
1064 if (optind < argc)
1065 bb_show_usage();
1066
1067 if (param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1068 if (!fs_type)
1069 fs_type = "journal";
1070 reserved_ratio = 0;
1071 param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
1072 param.s_feature_compat = 0;
1073 param.s_feature_ro_compat = 0;
1074 }
1075 if (param.s_rev_level == EXT2_GOOD_OLD_REV &&
1076 (param.s_feature_compat || param.s_feature_ro_compat ||
1077 param.s_feature_incompat))
1078 param.s_rev_level = 1; /* Create a revision 1 filesystem */
1079
1080 check_plausibility(device_name , force);
1081 check_mount(device_name, force, "filesystem");
1082
1083 param.s_log_frag_size = param.s_log_block_size;
1084
1085 if (noaction && param.s_blocks_count) {
1086 dev_size = param.s_blocks_count;
1087 retval = 0;
1088 } else {
1089 retry:
1090 retval = ext2fs_get_device_size(device_name,
1091 EXT2_BLOCK_SIZE(&param),
1092 &dev_size);
1093 if ((retval == EFBIG) &&
1094 (blocksize == 0) &&
1095 (param.s_log_block_size == 0)) {
1096 param.s_log_block_size = 2;
1097 blocksize = 4096;
1098 goto retry;
1099 }
1100 }
1101
1102 mke2fs_error_msg_and_die((retval && (retval != EXT2_ET_UNIMPLEMENTED)),"determine filesystem size");
1103
1104 if (!param.s_blocks_count) {
1105 if (retval == EXT2_ET_UNIMPLEMENTED) {
1106 mke2fs_error_msg_and_die(1,
1107 "determine device size; you "
1108 "must specify\nthe size of the "
1109 "filesystem");
1110 } else {
1111 if (dev_size == 0) {
1112 bb_error_msg_and_die(
1113 "Device size reported to be zero. "
1114 "Invalid partition specified, or\n\t"
1115 "partition table wasn't reread "
1116 "after running fdisk, due to\n\t"
1117 "a modified partition being busy "
1118 "and in use. You may need to reboot\n\t"
1119 "to re-read your partition table.\n"
1120 );
1121 }
1122 param.s_blocks_count = dev_size;
1123 if (sys_page_size > EXT2_BLOCK_SIZE(&param))
1124 param.s_blocks_count &= ~((sys_page_size /
1125 EXT2_BLOCK_SIZE(&param))-1);
1126 }
1127
1128 } else if (!force && (param.s_blocks_count > dev_size)) {
1129 bb_error_msg("Filesystem larger than apparent device size");
1130 proceed_question();
1131 }
1132
1133 /*
1134 * If the user asked for HAS_JOURNAL, then make sure a journal
1135 * gets created.
1136 */
1137 if ((param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
1138 !journal_size)
1139 journal_size = -1;
1140
1141 /* Set first meta blockgroup via an environment variable */
1142 /* (this is mostly for debugging purposes) */
1143 if ((param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1144 ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
1145 param.s_first_meta_bg = atoi(tmp);
1146
1147 /* Get the hardware sector size, if available */
1148 retval = ext2fs_get_device_sectsize(device_name, &sector_size);
1149 mke2fs_error_msg_and_die(retval, "determine hardware sector size");
1150
1151 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL)
1152 sector_size = atoi(tmp);
1153
1154 set_fs_defaults(fs_type, &param, blocksize, sector_size, &inode_ratio);
1155 blocksize = EXT2_BLOCK_SIZE(&param);
1156
1157 if (extended_opts)
1158 parse_extended_opts(&param, extended_opts);
1159
1160 /* Since sparse_super is the default, we would only have a problem
1161 * here if it was explicitly disabled.
1162 */
1163 if ((param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INO) &&
1164 !(param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1165 bb_error_msg_and_die("reserved online resize blocks not supported "
1166 "on non-sparse filesystem");
1167 }
1168
1169 if (param.s_blocks_per_group) {
1170 if (param.s_blocks_per_group < 256 ||
1171 param.s_blocks_per_group > 8 * (unsigned) blocksize) {
1172 bb_error_msg_and_die("blocks per group count out of range");
1173 }
1174 }
1175
1176 if (!force && param.s_blocks_count >= (1 << 31)) {
1177 bb_error_msg_and_die("Filesystem too large. No more than 2**31-1 blocks\n"
1178 "\t (8TB using a blocksize of 4k) are currently supported.");
1179 }
1180
1181 if (inode_size) {
1182 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
1183 inode_size > EXT2_BLOCK_SIZE(&param) ||
1184 inode_size & (inode_size - 1)) {
1185 bb_error_msg_and_die("invalid inode size %d (min %d/max %d)",
1186 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
1187 blocksize);
1188 }
1189 mke2fs_warning_msg((inode_size != EXT2_GOOD_OLD_INODE_SIZE),
1190 "%d-byte inodes not usable on most systems",
1191 inode_size);
1192 param.s_inode_size = inode_size;
1193 }
1194
1195 /*
1196 * Calculate number of inodes based on the inode ratio
1197 */
1198 param.s_inodes_count = num_inodes ? num_inodes :
1199 ((__u64) param.s_blocks_count * blocksize)
1200 / inode_ratio;
1201
1202 /*
1203 * Calculate number of blocks to reserve
1204 */
1205 param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100;
1206 return 1;
1207 }
1208
1209 static void mke2fs_clean_up(void)
1210 {
1211 if (ENABLE_FEATURE_CLEAN_UP && journal_device) free(journal_device);
1212 }
1213
1214 int mke2fs_main (int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
1215 int mke2fs_main (int argc, char **argv)
1216 {
1217 errcode_t retval;
1218 ext2_filsys fs;
1219 badblocks_list bb_list = 0;
1220 unsigned int i;
1221 int val;
1222 io_manager io_ptr;
1223
1224 if (ENABLE_FEATURE_CLEAN_UP)
1225 atexit(mke2fs_clean_up);
1226 if (!PRS(argc, argv))
1227 return 0;
1228
1229 #ifdef CONFIG_TESTIO_DEBUG
1230 io_ptr = test_io_manager;
1231 test_io_backing_manager = unix_io_manager;
1232 #else
1233 io_ptr = unix_io_manager;
1234 #endif
1235
1236 /*
1237 * Initialize the superblock....
1238 */
1239 retval = ext2fs_initialize(device_name, 0, &param,
1240 io_ptr, &fs);
1241 mke2fs_error_msg_and_die(retval, "set up superblock");
1242
1243 /*
1244 * Wipe out the old on-disk superblock
1245 */
1246 if (!noaction)
1247 zap_sector(fs, 2, 6);
1248
1249 /*
1250 * Generate a UUID for it...
1251 */
1252 generate_uuid(fs->super->s_uuid);
1253
1254 /*
1255 * Initialize the directory index variables
1256 */
1257 fs->super->s_def_hash_version = EXT2_HASH_TEA;
1258 generate_uuid((unsigned char *) fs->super->s_hash_seed);
1259
1260 /*
1261 * Add "jitter" to the superblock's check interval so that we
1262 * don't check all the filesystems at the same time. We use a
1263 * kludgy hack of using the UUID to derive a random jitter value.
1264 */
1265 for (i = 0, val = 0; i < sizeof(fs->super->s_uuid); i++)
1266 val += fs->super->s_uuid[i];
1267 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
1268
1269 /*
1270 * Override the creator OS, if applicable
1271 */
1272 if (creator_os && !set_os(fs->super, creator_os)) {
1273 bb_error_msg_and_die("unknown os - %s", creator_os);
1274 }
1275
1276 /*
1277 * For the Hurd, we will turn off filetype since it doesn't
1278 * support it.
1279 */
1280 if (fs->super->s_creator_os == EXT2_OS_HURD)
1281 fs->super->s_feature_incompat &=
1282 ~EXT2_FEATURE_INCOMPAT_FILETYPE;
1283
1284 /*
1285 * Set the volume label...
1286 */
1287 if (volume_label) {
1288 snprintf(fs->super->s_volume_name, sizeof(fs->super->s_volume_name), "%s", volume_label);
1289 }
1290
1291 /*
1292 * Set the last mount directory
1293 */
1294 if (mount_dir) {
1295 snprintf(fs->super->s_last_mounted, sizeof(fs->super->s_last_mounted), "%s", mount_dir);
1296 }
1297
1298 if (!quiet || noaction)
1299 show_stats(fs);
1300
1301 if (noaction)
1302 return 0;
1303
1304 if (fs->super->s_feature_incompat &
1305 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1306 create_journal_dev(fs);
1307 return (ext2fs_close(fs) ? 1 : 0);
1308 }
1309
1310 if (bad_blocks_filename)
1311 read_bb_file(fs, &bb_list, bad_blocks_filename);
1312 if (cflag)
1313 test_disk(fs, &bb_list);
1314
1315 handle_bad_blocks(fs, bb_list);
1316 fs->stride = fs_stride;
1317 retval = ext2fs_allocate_tables(fs);
1318 mke2fs_error_msg_and_die(retval, "allocate filesystem tables");
1319 if (super_only) {
1320 fs->super->s_state |= EXT2_ERROR_FS;
1321 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
1322 } else {
1323 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
1324 unsigned int rsv = 65536 / fs->blocksize;
1325 unsigned long blocks = fs->super->s_blocks_count;
1326 unsigned long start;
1327 blk_t ret_blk;
1328
1329 #ifdef ZAP_BOOTBLOCK
1330 zap_sector(fs, 0, 2);
1331 #endif
1332
1333 /*
1334 * Wipe out any old MD RAID (or other) metadata at the end
1335 * of the device. This will also verify that the device is
1336 * as large as we think. Be careful with very small devices.
1337 */
1338 start = (blocks & ~(rsv - 1));
1339 if (start > rsv)
1340 start -= rsv;
1341 if (start > 0)
1342 retval = zero_blocks(fs, start, blocks - start,
1343 NULL, &ret_blk, NULL);
1344
1345 mke2fs_warning_msg(retval, "can't zero block %u at end of filesystem", ret_blk);
1346 write_inode_tables(fs);
1347 create_root_dir(fs);
1348 create_lost_and_found(fs);
1349 reserve_inodes(fs);
1350 create_bad_block_inode(fs, bb_list);
1351 if (fs->super->s_feature_compat &
1352 EXT2_FEATURE_COMPAT_RESIZE_INO) {
1353 retval = ext2fs_create_resize_inode(fs);
1354 mke2fs_error_msg_and_die(retval, "reserve blocks for online resize");
1355 }
1356 }
1357
1358 if (journal_device) {
1359 make_journal_device(journal_device, fs, quiet, force);
1360 } else if (journal_size) {
1361 make_journal_blocks(fs, journal_size, journal_flags, quiet);
1362 }
1363
1364 mke2fs_verbose("Writing superblocks and filesystem accounting information: ");
1365 retval = ext2fs_flush(fs);
1366 mke2fs_warning_msg(retval, "had trouble writing out superblocks");
1367 mke2fs_verbose_done();
1368 if (!quiet && !getenv("MKE2FS_SKIP_CHECK_MSG"))
1369 print_check_message(fs);
1370 val = ext2fs_close(fs);
1371 return (retval || val) ? 1 : 0;
1372 }
Tomato firmware and modifications.