vcs.maemo.org Git - busybox4maemo/blob - e2fsprogs/old_e2fsprogs/mke2fs.c

   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  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  */
  11
  12 /* Usage: mke2fs [options] device
  13  *
  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 :-).
  16  */
  17
  18 #include <stdio.h>
  19 #include <string.h>
  20 #include <fcntl.h>
  21 #include <ctype.h>
  22 #include <time.h>
  23 #include <getopt.h>
  24 #include <unistd.h>
  25 #include <stdlib.h>
  26 #include <errno.h>
  27 #include <mntent.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/types.h>
  30
  31 #include "e2fsbb.h"
  32 #include "ext2fs/ext2_fs.h"
  33 #include "uuid/uuid.h"
  34 #include "e2p/e2p.h"
  35 #include "ext2fs/ext2fs.h"
  36 #include "util.h"
  37
  38 #define STRIDE_LENGTH 8
  39
  40 #ifndef __sparc__
  41 #define ZAP_BOOTBLOCK
  42 #endif
  43
  44 static const char * device_name;
  45
  46 /* Command line options */
  47 static int      cflag;
  48 static int      quiet;
  49 static int      super_only;
  50 static int      force;
  51 static int      noaction;
  52 static int      journal_size;
  53 static int      journal_flags;
  54 static const char *bad_blocks_filename;
  55 static __u32    fs_stride;
  56
  57 static struct ext2_super_block param;
  58 static char *creator_os;
  59 static char *volume_label;
  60 static char *mount_dir;
  61 static char *journal_device = NULL;
  62 static int   sync_kludge; /* Set using the MKE2FS_SYNC env. option */
  63
  64 static int sys_page_size = 4096;
  65 static int linux_version_code = 0;
  66
  67 static int int_log2(int arg)
  68 {
  69         int l = 0;
  70
  71         arg >>= 1;
  72         while (arg) {
  73                 l++;
  74                 arg >>= 1;
  75         }
  76         return l;
  77 }
  78
  79 static int int_log10(unsigned int arg)
  80 {
  81         int     l;
  82
  83         for (l = 0; arg; l++)
  84                 arg = arg / 10;
  85         return l;
  86 }
  87
  88 /*
  89  * This function sets the default parameters for a filesystem
  90  *
  91  * The type is specified by the user.  The size is the maximum size
  92  * (in megabytes) for which a set of parameters applies, with a size
  93  * of zero meaning that it is the default parameter for the type.
  94  * Note that order is important in the table below.
  95  */
  96 #define DEF_MAX_BLOCKSIZE -1
  97 static const char default_str[] = "default";
  98 struct mke2fs_defaults {
  99         const char      *type;
 100         int             size;
 101         int             blocksize;
 102         int             inode_ratio;
 103 };
 104
 105 static const struct mke2fs_defaults settings[] = {
 106         { default_str,   0, 4096, 8192 },
 107         { default_str, 512, 1024, 4096 },
 108         { default_str,   3, 1024, 8192 },
 109         { "journal",     0, 4096, 8192 },
 110         { "news",        0, 4096, 4096 },
 111         { "largefile",   0, 4096, 1024 * 1024 },
 112         { "largefile4",  0, 4096, 4096 * 1024 },
 113         { 0,             0,    0, 0},
 114 };
 115
 116 static void set_fs_defaults(const char *fs_type,
 117                             struct ext2_super_block *super,
 118                             int blocksize, int sector_size,
 119                             int *inode_ratio)
 120 {
 121         int     megs;
 122         int     ratio = 0;
 123         const struct mke2fs_defaults *p;
 124         int     use_bsize = 1024;
 125
 126         megs = super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) / 1024;
 127         if (inode_ratio)
 128                 ratio = *inode_ratio;
 129         if (!fs_type)
 130                 fs_type = default_str;
 131         for (p = settings; p->type; p++) {
 132                 if ((strcmp(p->type, fs_type) != 0) &&
 133                     (strcmp(p->type, default_str) != 0))
 134                         continue;
 135                 if ((p->size != 0) && (megs > p->size))
 136                         continue;
 137                 if (ratio == 0)
 138                         *inode_ratio = p->inode_ratio < blocksize ?
 139                                 blocksize : p->inode_ratio;
 140                 use_bsize = p->blocksize;
 141         }
 142         if (blocksize <= 0) {
 143                 if (use_bsize == DEF_MAX_BLOCKSIZE) {
 144                         use_bsize = sys_page_size;
 145                         if ((linux_version_code < (2*65536 + 6*256)) &&
 146                             (use_bsize > 4096))
 147                                 use_bsize = 4096;
 148                 }
 149                 if (sector_size && use_bsize < sector_size)
 150                         use_bsize = sector_size;
 151                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
 152                         use_bsize = -blocksize;
 153                 blocksize = use_bsize;
 154                 super->s_blocks_count /= blocksize / 1024;
 155         }
 156         super->s_log_frag_size = super->s_log_block_size =
 157                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
 158 }
 159
 160
 161 /*
 162  * Helper function for read_bb_file and test_disk
 163  */
 164 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 165 {
 166         bb_error_msg("Bad block %u out of range; ignored", blk);
 167 }
 168
 169 /*
 170  * Busybox stuff
 171  */
 172 static void mke2fs_error_msg_and_die(int retval, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
 173 static void mke2fs_error_msg_and_die(int retval, const char *fmt, ...)
 174 {
 175         va_list ap;
 176
 177         if (retval) {
 178                 va_start(ap, fmt);
 179                 fprintf(stderr,"\nCould not ");
 180                 vfprintf(stderr, fmt, ap);
 181                 fprintf(stderr, "\n");
 182                 va_end(ap);
 183                 exit(EXIT_FAILURE);
 184         }
 185 }
 186
 187 static void mke2fs_verbose(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
 188 static void mke2fs_verbose(const char *fmt, ...)
 189 {
 190         va_list ap;
 191
 192         if (!quiet) {
 193                 va_start(ap, fmt);
 194                 vfprintf(stdout, fmt, ap);
 195                 fflush(stdout);
 196                 va_end(ap);
 197         }
 198 }
 199
 200 static void mke2fs_verbose_done(void)
 201 {
 202         mke2fs_verbose("done\n");
 203 }
 204
 205 static void mke2fs_warning_msg(int retval, char *fmt, ... ) __attribute__ ((format (printf, 2, 3)));
 206 static void mke2fs_warning_msg(int retval, char *fmt, ... )
 207 {
 208         va_list ap;
 209
 210         if (retval) {
 211                 va_start(ap, fmt);
 212                 fprintf(stderr,"\nWarning: ");
 213                 vfprintf(stderr, fmt, ap);
 214                 fprintf(stderr, "\n");
 215                 va_end(ap);
 216         }
 217 }
 218
 219 /*
 220  * Reads the bad blocks list from a file
 221  */
 222 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 223                          const char *bad_blocks_file)
 224 {
 225         FILE            *f;
 226         errcode_t       retval;
 227
 228         f = xfopen(bad_blocks_file, "r");
 229         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 230         fclose (f);
 231         mke2fs_error_msg_and_die(retval, "read bad blocks from list");
 232 }
 233
 234 /*
 235  * Runs the badblocks program to test the disk
 236  */
 237 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 238 {
 239         FILE            *f;
 240         errcode_t       retval;
 241         char            buf[1024];
 242
 243         sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
 244                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 245                 fs->device_name, fs->super->s_blocks_count);
 246         mke2fs_verbose("Running command: %s\n", buf);
 247         f = popen(buf, "r");
 248         if (!f) {
 249                 bb_perror_msg_and_die("cannot run '%s'", buf);
 250         }
 251         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 252         pclose(f);
 253         mke2fs_error_msg_and_die(retval, "read bad blocks from program");
 254 }
 255
 256 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 257 {
 258         dgrp_t                  i;
 259         blk_t                   j;
 260         unsigned                must_be_good;
 261         blk_t                   blk;
 262         badblocks_iterate       bb_iter;
 263         errcode_t               retval;
 264         blk_t                   group_block;
 265         int                     group;
 266         int                     group_bad;
 267
 268         if (!bb_list)
 269                 return;
 270
 271         /*
 272          * The primary superblock and group descriptors *must* be
 273          * good; if not, abort.
 274          */
 275         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 276         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 277                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 278                         bb_error_msg_and_die(
 279                                 "Block %d in primary superblock/group descriptor area bad\n"
 280                                 "Blocks %d through %d must be good in order to build a filesystem\n"
 281                                 "Aborting ...", i, fs->super->s_first_data_block, must_be_good);
 282                 }
 283         }
 284
 285         /*
 286          * See if any of the bad blocks are showing up in the backup
 287          * superblocks and/or group descriptors.  If so, issue a
 288          * warning and adjust the block counts appropriately.
 289          */
 290         group_block = fs->super->s_first_data_block +
 291                 fs->super->s_blocks_per_group;
 292
 293         for (i = 1; i < fs->group_desc_count; i++) {
 294                 group_bad = 0;
 295                 for (j=0; j < fs->desc_blocks+1; j++) {
 296                         if (ext2fs_badblocks_list_test(bb_list,
 297                                                        group_block + j)) {
 298                                 mke2fs_warning_msg(!group_bad,
 299                                         "the backup superblock/group descriptors at block %d contain\n"
 300                                         "bad blocks\n", group_block);
 301                                 group_bad++;
 302                                 group = ext2fs_group_of_blk(fs, group_block+j);
 303                                 fs->group_desc[group].bg_free_blocks_count++;
 304                                 fs->super->s_free_blocks_count++;
 305                         }
 306                 }
 307                 group_block += fs->super->s_blocks_per_group;
 308         }
 309
 310         /*
 311          * Mark all the bad blocks as used...
 312          */
 313         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 314         mke2fs_error_msg_and_die(retval, "mark bad blocks as used");
 315
 316         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 317                 ext2fs_mark_block_bitmap(fs->block_map, blk);
 318         ext2fs_badblocks_list_iterate_end(bb_iter);
 319 }
 320
 321 /*
 322  * These functions implement a generalized progress meter.
 323  */
 324 struct progress_struct {
 325         char            format[20];
 326         char            backup[80];
 327         __u32           max;
 328         int             skip_progress;
 329 };
 330
 331 static void progress_init(struct progress_struct *progress,
 332                           const char *label,__u32 max)
 333 {
 334         int     i;
 335
 336         memset(progress, 0, sizeof(struct progress_struct));
 337         if (quiet)
 338                 return;
 339
 340         /*
 341          * Figure out how many digits we need
 342          */
 343         i = int_log10(max);
 344         sprintf(progress->format, "%%%dd/%%%dld", i, i);
 345         memset(progress->backup, '\b', sizeof(progress->backup)-1);
 346         progress->backup[sizeof(progress->backup)-1] = 0;
 347         if ((2*i)+1 < (int) sizeof(progress->backup))
 348                 progress->backup[(2*i)+1] = 0;
 349         progress->max = max;
 350
 351         progress->skip_progress = 0;
 352         if (getenv("MKE2FS_SKIP_PROGRESS"))
 353                 progress->skip_progress++;
 354
 355         fputs(label, stdout);
 356         fflush(stdout);
 357 }
 358
 359 static void progress_update(struct progress_struct *progress, __u32 val)
 360 {
 361         if ((progress->format[0] == 0) || progress->skip_progress)
 362                 return;
 363         printf(progress->format, val, progress->max);
 364         fputs(progress->backup, stdout);
 365 }
 366
 367 static void progress_close(struct progress_struct *progress)
 368 {
 369         if (progress->format[0] == 0)
 370                 return;
 371         printf("%-28s\n", "done");
 372 }
 373
 374
 375 /*
 376  * Helper function which zeros out _num_ blocks starting at _blk_.  In
 377  * case of an error, the details of the error is returned via _ret_blk_
 378  * and _ret_count_ if they are non-NULL pointers.  Returns 0 on
 379  * success, and an error code on an error.
 380  *
 381  * As a special case, if the first argument is NULL, then it will
 382  * attempt to free the static zeroizing buffer.  (This is to keep
 383  * programs that check for memory leaks happy.)
 384  */
 385 static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num,
 386                              struct progress_struct *progress,
 387                              blk_t *ret_blk, int *ret_count)
 388 {
 389         int             j, count, next_update, next_update_incr;
 390         static char     *buf;
 391         errcode_t       retval;
 392
 393         /* If fs is null, clean up the static buffer and return */
 394         if (!fs) {
 395                 if (buf) {
 396                         free(buf);
 397                         buf = 0;
 398                 }
 399                 return 0;
 400         }
 401         /* Allocate the zeroizing buffer if necessary */
 402         if (!buf) {
 403                 buf = xzalloc(fs->blocksize * STRIDE_LENGTH);
 404         }
 405         /* OK, do the write loop */
 406         next_update = 0;
 407         next_update_incr = num / 100;
 408         if (next_update_incr < 1)
 409                 next_update_incr = 1;
 410         for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
 411                 count = num - j;
 412                 if (count > STRIDE_LENGTH)
 413                         count = STRIDE_LENGTH;
 414                 retval = io_channel_write_blk(fs->io, blk, count, buf);
 415                 if (retval) {
 416                         if (ret_count)
 417                                 *ret_count = count;
 418                         if (ret_blk)
 419                                 *ret_blk = blk;
 420                         return retval;
 421                 }
 422                 if (progress && j > next_update) {
 423                         next_update += num / 100;
 424                         progress_update(progress, blk);
 425                 }
 426         }
 427         return 0;
 428 }
 429
 430 static void write_inode_tables(ext2_filsys fs)
 431 {
 432         errcode_t       retval;
 433         blk_t           blk;
 434         dgrp_t          i;
 435         int             num;
 436         struct progress_struct progress;
 437
 438         if (quiet)
 439                 memset(&progress, 0, sizeof(progress));
 440         else
 441                 progress_init(&progress, "Writing inode tables: ",
 442                               fs->group_desc_count);
 443
 444         for (i = 0; i < fs->group_desc_count; i++) {
 445                 progress_update(&progress, i);
 446
 447                 blk = fs->group_desc[i].bg_inode_table;
 448                 num = fs->inode_blocks_per_group;
 449
 450                 retval = zero_blocks(fs, blk, num, 0, &blk, &num);
 451                 mke2fs_error_msg_and_die(retval,
 452                         "write %d blocks in inode table starting at %d.",
 453                         num, blk);
 454                 if (sync_kludge) {
 455                         if (sync_kludge == 1)
 456                                 sync();
 457                         else if ((i % sync_kludge) == 0)
 458                                 sync();
 459                 }
 460         }
 461         zero_blocks(0, 0, 0, 0, 0, 0);
 462         progress_close(&progress);
 463 }
 464
 465 static void create_root_dir(ext2_filsys fs)
 466 {
 467         errcode_t               retval;
 468         struct ext2_inode       inode;
 469
 470         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 471         mke2fs_error_msg_and_die(retval, "create root dir");
 472         if (geteuid()) {
 473                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 474                 mke2fs_error_msg_and_die(retval, "read root inode");
 475                 inode.i_uid = getuid();
 476                 if (inode.i_uid)
 477                         inode.i_gid = getgid();
 478                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 479                 mke2fs_error_msg_and_die(retval, "set root inode ownership");
 480         }
 481 }
 482
 483 static void create_lost_and_found(ext2_filsys fs)
 484 {
 485         errcode_t               retval;
 486         ext2_ino_t              ino;
 487         const char              *name = "lost+found";
 488         int                     i = 1;
 489         char                    *msg = "create";
 490         int                     lpf_size = 0;
 491
 492         fs->umask = 077;
 493         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 494         if (retval) {
 495                 goto CREATE_LOST_AND_FOUND_ERROR;
 496         }
 497
 498         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 499         if (retval) {
 500                 msg = "lookup";
 501                 goto CREATE_LOST_AND_FOUND_ERROR;
 502         }
 503
 504         for (; i < EXT2_NDIR_BLOCKS; i++) {
 505                 if ((lpf_size += fs->blocksize) >= 16*1024)
 506                         break;
 507                 retval = ext2fs_expand_dir(fs, ino);
 508                 msg = "expand";
 509 CREATE_LOST_AND_FOUND_ERROR:
 510                 mke2fs_error_msg_and_die(retval, "%s %s", msg, name);
 511         }
 512 }
 513
 514 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 515 {
 516         errcode_t       retval;
 517
 518         ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO);
 519         fs->group_desc[0].bg_free_inodes_count--;
 520         fs->super->s_free_inodes_count--;
 521         retval = ext2fs_update_bb_inode(fs, bb_list);
 522         mke2fs_error_msg_and_die(retval, "set bad block inode");
 523 }
 524
 525 static void reserve_inodes(ext2_filsys fs)
 526 {
 527         ext2_ino_t      i;
 528         int             group;
 529
 530         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) {
 531                 ext2fs_mark_inode_bitmap(fs->inode_map, i);
 532                 group = ext2fs_group_of_ino(fs, i);
 533                 fs->group_desc[group].bg_free_inodes_count--;
 534                 fs->super->s_free_inodes_count--;
 535         }
 536         ext2fs_mark_ib_dirty(fs);
 537 }
 538
 539 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 540 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 541 #define BSD_LABEL_OFFSET        64
 542
 543 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 544 {
 545         char *buf;
 546         char *fmt = "could not %s %d";
 547         int retval;
 548         unsigned int *magic;
 549
 550         buf = xmalloc(512*nsect);
 551
 552         if (sect == 0) {
 553                 /* Check for a BSD disklabel, and don't erase it if so */
 554                 retval = io_channel_read_blk(fs->io, 0, -512, buf);
 555                 if (retval)
 556                         mke2fs_warning_msg(retval, fmt, "read block", 0);
 557                 else {
 558                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 559                         if ((*magic == BSD_DISKMAGIC) ||
 560                             (*magic == BSD_MAGICDISK))
 561                                 return;
 562                 }
 563         }
 564
 565         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);
 569         free(buf);
 570         mke2fs_warning_msg(retval, fmt, "erase sector", sect);
 571 }
 572
 573 static void create_journal_dev(ext2_filsys fs)
 574 {
 575         struct progress_struct  progress;
 576         errcode_t               retval;
 577         char                    *buf;
 578         char                    *fmt = "%s journal superblock";
 579         blk_t                   blk;
 580         int                     count;
 581
 582         retval = ext2fs_create_journal_superblock(fs,
 583                                   fs->super->s_blocks_count, 0, &buf);
 584         mke2fs_error_msg_and_die(retval, fmt, "init");
 585         if (quiet)
 586                 memset(&progress, 0, sizeof(progress));
 587         else
 588                 progress_init(&progress, "Zeroing journal device: ",
 589                               fs->super->s_blocks_count);
 590
 591         retval = zero_blocks(fs, 0, fs->super->s_blocks_count,
 592                              &progress, &blk, &count);
 593         mke2fs_error_msg_and_die(retval, "zero journal device (block %u, count %d)",
 594                         blk, count);
 595         zero_blocks(0, 0, 0, 0, 0, 0);
 596
 597         retval = io_channel_write_blk(fs->io,
 598                                       fs->super->s_first_data_block+1,
 599                                       1, buf);
 600         mke2fs_error_msg_and_die(retval, fmt, "write");
 601         progress_close(&progress);
 602 }
 603
 604 static void show_stats(ext2_filsys fs)
 605 {
 606         struct ext2_super_block *s = fs->super;
 607         char                    *os;
 608         blk_t                   group_block;
 609         dgrp_t                  i;
 610         int                     need, col_left;
 611
 612         mke2fs_warning_msg((param.s_blocks_count != s->s_blocks_count),
 613                 "%d blocks unused\n", param.s_blocks_count - s->s_blocks_count);
 614         os = e2p_os2string(fs->super->s_creator_os);
 615         printf( "Filesystem label=%.*s\n"
 616                         "OS type: %s\n"
 617                         "Block size=%u (log=%u)\n"
 618                         "Fragment size=%u (log=%u)\n"
 619                         "%u inodes, %u blocks\n"
 620                         "%u blocks (%2.2f%%) reserved for the super user\n"
 621                         "First data block=%u\n",
 622                         (int) sizeof(s->s_volume_name),
 623                         s->s_volume_name,
 624                         os,
 625                         fs->blocksize, s->s_log_block_size,
 626                         fs->fragsize, s->s_log_frag_size,
 627                         s->s_inodes_count, s->s_blocks_count,
 628                         s->s_r_blocks_count, 100.0 * s->s_r_blocks_count / s->s_blocks_count,
 629                         s->s_first_data_block);
 630         free(os);
 631         if (s->s_reserved_gdt_blocks) {
 632                 printf("Maximum filesystem blocks=%lu\n",
 633                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 634                        (fs->blocksize / sizeof(struct ext2_group_desc)) *
 635                        s->s_blocks_per_group);
 636         }
 637         printf( "%u block group%s\n"
 638                         "%u blocks per group, %u fragments per group\n"
 639                         "%u inodes per group\n",
 640                         fs->group_desc_count, (fs->group_desc_count > 1) ? "s" : "",
 641                         s->s_blocks_per_group, s->s_frags_per_group,
 642                         s->s_inodes_per_group);
 643         if (fs->group_desc_count == 1) {
 644                 bb_putchar('\n');
 645                 return;
 646         }
 647
 648         printf("Superblock backups stored on blocks: ");
 649         group_block = s->s_first_data_block;
 650         col_left = 0;
 651         for (i = 1; i < fs->group_desc_count; i++) {
 652                 group_block += s->s_blocks_per_group;
 653                 if (!ext2fs_bg_has_super(fs, i))
 654                         continue;
 655                 if (i != 1)
 656                         printf(", ");
 657                 need = int_log10(group_block) + 2;
 658                 if (need > col_left) {
 659                         printf("\n\t");
 660                         col_left = 72;
 661                 }
 662                 col_left -= need;
 663                 printf("%u", group_block);
 664         }
 665         puts("\n");
 666 }
 667
 668 /*
 669  * Set the S_CREATOR_OS field.  Return true if OS is known,
 670  * otherwise, 0.
 671  */
 672 static int set_os(struct ext2_super_block *sb, char *os)
 673 {
 674         if (isdigit (*os)) {
 675                 sb->s_creator_os = atoi(os);
 676                 return 1;
 677         }
 678
 679         if((sb->s_creator_os = e2p_string2os(os)) >= 0) {
 680                 return 1;
 681         } else if (!strcasecmp("GNU", os)) {
 682                 sb->s_creator_os = EXT2_OS_HURD;
 683                 return 1;
 684         }
 685         return 0;
 686 }
 687
 688 static void parse_extended_opts(struct ext2_super_block *sb_param,
 689                                 const char *opts)
 690 {
 691         char    *buf, *token, *next, *p, *arg;
 692         int     r_usage = 0;
 693
 694         buf = xstrdup(opts);
 695         for (token = buf; token && *token; token = next) {
 696                 p = strchr(token, ',');
 697                 next = 0;
 698                 if (p) {
 699                         *p = 0;
 700                         next = p+1;
 701                 }
 702                 arg = strchr(token, '=');
 703                 if (arg) {
 704                         *arg = 0;
 705                         arg++;
 706                 }
 707                 if (strcmp(token, "stride") == 0) {
 708                         if (!arg) {
 709                                 r_usage++;
 710                                 continue;
 711                         }
 712                         fs_stride = strtoul(arg, &p, 0);
 713                         if (*p || (fs_stride == 0)) {
 714                                 bb_error_msg("Invalid stride parameter: %s", arg);
 715                                 r_usage++;
 716                                 continue;
 717                         }
 718                 } else if (!strcmp(token, "resize")) {
 719                         unsigned long resize, bpg, rsv_groups;
 720                         unsigned long group_desc_count, desc_blocks;
 721                         unsigned int gdpb, blocksize;
 722                         int rsv_gdb;
 723
 724                         if (!arg) {
 725                                 r_usage++;
 726                                 continue;
 727                         }
 728
 729                         resize = parse_num_blocks(arg,
 730                                                   sb_param->s_log_block_size);
 731
 732                         if (resize == 0) {
 733                                 bb_error_msg("Invalid resize parameter: %s", arg);
 734                                 r_usage++;
 735                                 continue;
 736                         }
 737                         if (resize <= sb_param->s_blocks_count) {
 738                                 bb_error_msg("The resize maximum must be greater "
 739                                                 "than the filesystem size");
 740                                 r_usage++;
 741                                 continue;
 742                         }
 743
 744                         blocksize = EXT2_BLOCK_SIZE(sb_param);
 745                         bpg = sb_param->s_blocks_per_group;
 746                         if (!bpg)
 747                                 bpg = blocksize * 8;
 748                         gdpb = blocksize / sizeof(struct ext2_group_desc);
 749                         group_desc_count = (sb_param->s_blocks_count +
 750                                             bpg - 1) / bpg;
 751                         desc_blocks = (group_desc_count +
 752                                        gdpb - 1) / gdpb;
 753                         rsv_groups = (resize + bpg - 1) / bpg;
 754                         rsv_gdb = (rsv_groups + gdpb - 1) / gdpb -
 755                                 desc_blocks;
 756                         if (rsv_gdb > EXT2_ADDR_PER_BLOCK(sb_param))
 757                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(sb_param);
 758
 759                         if (rsv_gdb > 0) {
 760                                 sb_param->s_feature_compat |=
 761                                         EXT2_FEATURE_COMPAT_RESIZE_INODE;
 762
 763                                 sb_param->s_reserved_gdt_blocks = rsv_gdb;
 764                         }
 765                 } else
 766                         r_usage++;
 767         }
 768         if (r_usage) {
 769                 bb_error_msg_and_die(
 770                         "\nBad options specified.\n\n"
 771                         "Extended options are separated by commas, "
 772                         "and may take an argument which\n"
 773                         "\tis set off by an equals ('=') sign.\n\n"
 774                         "Valid extended options are:\n"
 775                         "\tstride=<stride length in blocks>\n"
 776                         "\tresize=<resize maximum size in blocks>\n");
 777         }
 778 }
 779
 780 static __u32 ok_features[3] = {
 781         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 782                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
 783                 EXT2_FEATURE_COMPAT_DIR_INDEX,  /* Compat */
 784         EXT2_FEATURE_INCOMPAT_FILETYPE|         /* Incompat */
 785                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
 786                 EXT2_FEATURE_INCOMPAT_META_BG,
 787         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER     /* R/O compat */
 788 };
 789
 790 static int PRS(int argc, char **argv)
 791 {
 792         int             c;
 793         int             size;
 794         char *          tmp;
 795         int             blocksize = 0;
 796         int             inode_ratio = 0;
 797         int             inode_size = 0;
 798         int             reserved_ratio = 5;
 799         int             sector_size = 0;
 800         int             show_version_only = 0;
 801         ext2_ino_t      num_inodes = 0;
 802         errcode_t       retval;
 803         char *          extended_opts = 0;
 804         const char *    fs_type = 0;
 805         blk_t           dev_size;
 806         long            sysval;
 807
 808         /* Update our PATH to include /sbin  */
 809         e2fs_set_sbin_path();
 810
 811         tmp = getenv("MKE2FS_SYNC");
 812         if (tmp)
 813                 sync_kludge = atoi(tmp);
 814
 815         /* Determine the system page size if possible */
 816 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
 817 #define _SC_PAGESIZE _SC_PAGE_SIZE
 818 #endif
 819 #ifdef _SC_PAGESIZE
 820         sysval = sysconf(_SC_PAGESIZE);
 821         if (sysval > 0)
 822                 sys_page_size = sysval;
 823 #endif /* _SC_PAGESIZE */
 824
 825         setbuf(stdout, NULL);
 826         setbuf(stderr, NULL);
 827         memset(&param, 0, sizeof(struct ext2_super_block));
 828         param.s_rev_level = 1;  /* Create revision 1 filesystems now */
 829         param.s_feature_incompat |= EXT2_FEATURE_INCOMPAT_FILETYPE;
 830         param.s_feature_ro_compat |= EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
 831
 832 #ifdef __linux__
 833         linux_version_code = get_linux_version_code();
 834         if (linux_version_code && linux_version_code < KERNEL_VERSION(2,2,0)) {
 835                 param.s_rev_level = 0;
 836                 param.s_feature_incompat = 0;
 837                 param.s_feature_compat = 0;
 838                 param.s_feature_ro_compat = 0;
 839         }
 840 #endif
 841
 842         /* If called as mkfs.ext3, create a journal inode */
 843         if (last_char_is(applet_name, '3'))
 844                 journal_size = -1;
 845
 846         while ((c = getopt (argc, argv,
 847                     "b:cE:f:g:i:jl:m:no:qr:R:s:tvI:J:ST:FL:M:N:O:V")) != EOF) {
 848                 switch (c) {
 849                 case 'b':
 850                         blocksize = xatou_range(optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE);
 851                         mke2fs_warning_msg((blocksize > 4096),
 852                                 "blocksize %d not usable on most systems",
 853                                 blocksize);
 854                         param.s_log_block_size =
 855                                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
 856                         break;
 857                 case 'c':       /* Check for bad blocks */
 858                 case 't':       /* deprecated */
 859                         cflag++;
 860                         break;
 861                 case 'f':
 862                         size = xatou_range(optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE);
 863                         param.s_log_frag_size =
 864                                 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
 865                         mke2fs_warning_msg(1, "fragments not supported. Ignoring -f option");
 866                         break;
 867                 case 'g':
 868                         param.s_blocks_per_group = xatou32(optarg);
 869                         if ((param.s_blocks_per_group % 8) != 0) {
 870                                 bb_error_msg_and_die("blocks per group must be multiple of 8");
 871                         }
 872                         break;
 873                 case 'i':
 874                         /* Huh? is "* 1024" correct? */
 875                         inode_ratio = xatou_range(optarg, EXT2_MIN_BLOCK_SIZE, EXT2_MAX_BLOCK_SIZE * 1024);
 876                         break;
 877                 case 'J':
 878                         parse_journal_opts(&journal_device, &journal_flags, &journal_size, optarg);
 879                         break;
 880                 case 'j':
 881                         param.s_feature_compat |=
 882                                 EXT3_FEATURE_COMPAT_HAS_JOURNAL;
 883                         if (!journal_size)
 884                                 journal_size = -1;
 885                         break;
 886                 case 'l':
 887                         bad_blocks_filename = optarg;
 888                         break;
 889                 case 'm':
 890                         reserved_ratio = xatou_range(optarg, 0, 50);
 891                         break;
 892                 case 'n':
 893                         noaction++;
 894                         break;
 895                 case 'o':
 896                         creator_os = optarg;
 897                         break;
 898                 case 'r':
 899                         param.s_rev_level = xatoi_u(optarg);
 900                         if (param.s_rev_level == EXT2_GOOD_OLD_REV) {
 901                                 param.s_feature_incompat = 0;
 902                                 param.s_feature_compat = 0;
 903                                 param.s_feature_ro_compat = 0;
 904                         }
 905                         break;
 906                 case 's':       /* deprecated */
 907                         if (xatou(optarg))
 908                                 param.s_feature_ro_compat |=
 909                                         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
 910                         else
 911                                 param.s_feature_ro_compat &=
 912                                         ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
 913                         break;
 914 #ifdef EXT2_DYNAMIC_REV
 915                 case 'I':
 916                         inode_size = xatoi_u(optarg);
 917                         break;
 918 #endif
 919                 case 'N':
 920                         num_inodes = xatoi_u(optarg);
 921                         break;
 922                 case 'v':
 923                         quiet = 0;
 924                         break;
 925                 case 'q':
 926                         quiet = 1;
 927                         break;
 928                 case 'F':
 929                         force = 1;
 930                         break;
 931                 case 'L':
 932                         volume_label = optarg;
 933                         break;
 934                 case 'M':
 935                         mount_dir = optarg;
 936                         break;
 937                 case 'O':
 938                         if (!strcmp(optarg, "none")) {
 939                                 param.s_feature_compat = 0;
 940                                 param.s_feature_incompat = 0;
 941                                 param.s_feature_ro_compat = 0;
 942                                 break;
 943                         }
 944                         if (e2p_edit_feature(optarg,
 945                                             &param.s_feature_compat,
 946                                             ok_features)) {
 947                                 bb_error_msg_and_die("Invalid filesystem option set: %s", optarg);
 948                         }
 949                         break;
 950                 case 'E':
 951                 case 'R':
 952                         extended_opts = optarg;
 953                         break;
 954                 case 'S':
 955                         super_only = 1;
 956                         break;
 957                 case 'T':
 958                         fs_type = optarg;
 959                         break;
 960                 case 'V':
 961                         /* Print version number and exit */
 962                         show_version_only = 1;
 963                         quiet = 0;
 964                         break;
 965                 default:
 966                         bb_show_usage();
 967                 }
 968         }
 969         if ((optind == argc) /*&& !show_version_only*/)
 970                 bb_show_usage();
 971         device_name = argv[optind++];
 972
 973         mke2fs_verbose("mke2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
 974
 975         if (show_version_only) {
 976                 return 0;
 977         }
 978
 979         /*
 980          * If there's no blocksize specified and there is a journal
 981          * device, use it to figure out the blocksize
 982          */
 983         if (blocksize <= 0 && journal_device) {
 984                 ext2_filsys     jfs;
 985                 io_manager      io_ptr;
 986
 987 #ifdef CONFIG_TESTIO_DEBUG
 988                 io_ptr = test_io_manager;
 989                 test_io_backing_manager = unix_io_manager;
 990 #else
 991                 io_ptr = unix_io_manager;
 992 #endif
 993                 retval = ext2fs_open(journal_device,
 994                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
 995                                      0, io_ptr, &jfs);
 996                 mke2fs_error_msg_and_die(retval, "open journal device %s", journal_device);
 997                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
 998                         bb_error_msg_and_die(
 999                                 "Journal dev blocksize (%d) smaller than "
1000                                 "minimum blocksize %d\n", jfs->blocksize,
1001                                 -blocksize);
1002                 }
1003                 blocksize = jfs->blocksize;
1004                 param.s_log_block_size =
1005                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1006                 ext2fs_close(jfs);
1007         }
1008
1009         if (blocksize > sys_page_size) {
1010                 mke2fs_warning_msg(1, "%d-byte blocks too big for system (max %d)",
1011                         blocksize, sys_page_size);
1012                 if (!force) {
1013                         proceed_question();
1014                 }
1015                 bb_error_msg("Forced to continue");
1016         }
1017         mke2fs_warning_msg(((blocksize > 4096) &&
1018                 (param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL)),
1019                 "some 2.4 kernels do not support "
1020                 "blocksizes greater than 4096 using ext3.\n"
1021                 "Use -b 4096 if this is an issue for you\n");
1022
1023         if (optind < argc) {
1024                 param.s_blocks_count = parse_num_blocks(argv[optind++],
1025                                 param.s_log_block_size);
1026                 mke2fs_error_msg_and_die(!param.s_blocks_count, "invalid blocks count - %s", argv[optind - 1]);
1027         }
1028         if (optind < argc)
1029                 bb_show_usage();
1030
1031         if (param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1032                 if (!fs_type)
1033                         fs_type = "journal";
1034                 reserved_ratio = 0;
1035                 param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
1036                 param.s_feature_compat = 0;
1037                 param.s_feature_ro_compat = 0;
1038         }
1039         if (param.s_rev_level == EXT2_GOOD_OLD_REV &&
1040             (param.s_feature_compat || param.s_feature_ro_compat ||
1041              param.s_feature_incompat))
1042                 param.s_rev_level = 1;  /* Create a revision 1 filesystem */
1043
1044         check_plausibility(device_name , force);
1045         check_mount(device_name, force, "filesystem");
1046
1047         param.s_log_frag_size = param.s_log_block_size;
1048
1049         if (noaction && param.s_blocks_count) {
1050                 dev_size = param.s_blocks_count;
1051                 retval = 0;
1052         } else {
1053         retry:
1054                 retval = ext2fs_get_device_size(device_name,
1055                                                 EXT2_BLOCK_SIZE(&param),
1056                                                 &dev_size);
1057                 if ((retval == EFBIG) &&
1058                     (blocksize == 0) &&
1059                     (param.s_log_block_size == 0)) {
1060                         param.s_log_block_size = 2;
1061                         blocksize = 4096;
1062                         goto retry;
1063                 }
1064         }
1065
1066         mke2fs_error_msg_and_die((retval && (retval != EXT2_ET_UNIMPLEMENTED)),"determine filesystem size");
1067
1068         if (!param.s_blocks_count) {
1069                 if (retval == EXT2_ET_UNIMPLEMENTED) {
1070                         mke2fs_error_msg_and_die(1,
1071                                 "determine device size; you "
1072                                 "must specify\nthe size of the "
1073                                 "filesystem");
1074                 } else {
1075                         if (dev_size == 0) {
1076                                 bb_error_msg_and_die(
1077                                         "Device size reported to be zero.  "
1078                                         "Invalid partition specified, or\n\t"
1079                                         "partition table wasn't reread "
1080                                         "after running fdisk, due to\n\t"
1081                                         "a modified partition being busy "
1082                                         "and in use.  You may need to reboot\n\t"
1083                                         "to re-read your partition table.\n"
1084                                 );
1085                         }
1086                         param.s_blocks_count = dev_size;
1087                         if (sys_page_size > EXT2_BLOCK_SIZE(&param))
1088                                 param.s_blocks_count &= ~((sys_page_size /
1089                                                            EXT2_BLOCK_SIZE(&param))-1);
1090                 }
1091
1092         } else if (!force && (param.s_blocks_count > dev_size)) {
1093                 bb_error_msg("Filesystem larger than apparent device size");
1094                 proceed_question();
1095         }
1096
1097         /*
1098          * If the user asked for HAS_JOURNAL, then make sure a journal
1099          * gets created.
1100          */
1101         if ((param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
1102             !journal_size)
1103                 journal_size = -1;
1104
1105         /* Set first meta blockgroup via an environment variable */
1106         /* (this is mostly for debugging purposes) */
1107         if ((param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1108             ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
1109                 param.s_first_meta_bg = atoi(tmp);
1110
1111         /* Get the hardware sector size, if available */
1112         retval = ext2fs_get_device_sectsize(device_name, &sector_size);
1113         mke2fs_error_msg_and_die(retval, "determine hardware sector size");
1114
1115         if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL)
1116                 sector_size = atoi(tmp);
1117
1118         set_fs_defaults(fs_type, &param, blocksize, sector_size, &inode_ratio);
1119         blocksize = EXT2_BLOCK_SIZE(&param);
1120
1121         if (extended_opts)
1122                 parse_extended_opts(&param, extended_opts);
1123
1124         /* Since sparse_super is the default, we would only have a problem
1125          * here if it was explicitly disabled.
1126          */
1127         if ((param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
1128             !(param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1129                 bb_error_msg_and_die("reserved online resize blocks not supported "
1130                           "on non-sparse filesystem");
1131         }
1132
1133         if (param.s_blocks_per_group) {
1134                 if (param.s_blocks_per_group < 256 ||
1135                     param.s_blocks_per_group > 8 * (unsigned) blocksize) {
1136                         bb_error_msg_and_die("blocks per group count out of range");
1137                 }
1138         }
1139
1140         if (!force && param.s_blocks_count >= (1 << 31)) {
1141                 bb_error_msg_and_die("Filesystem too large.  No more than 2**31-1 blocks\n"
1142                         "\t (8TB using a blocksize of 4k) are currently supported.");
1143         }
1144
1145         if (inode_size) {
1146                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
1147                     inode_size > EXT2_BLOCK_SIZE(&param) ||
1148                     inode_size & (inode_size - 1)) {
1149                         bb_error_msg_and_die("invalid inode size %d (min %d/max %d)",
1150                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
1151                                 blocksize);
1152                 }
1153                 mke2fs_warning_msg((inode_size != EXT2_GOOD_OLD_INODE_SIZE),
1154                         "%d-byte inodes not usable on most systems",
1155                         inode_size);
1156                 param.s_inode_size = inode_size;
1157         }
1158
1159         /*
1160          * Calculate number of inodes based on the inode ratio
1161          */
1162         param.s_inodes_count = num_inodes ? num_inodes :
1163                 ((__u64) param.s_blocks_count * blocksize)
1164                         / inode_ratio;
1165
1166         /*
1167          * Calculate number of blocks to reserve
1168          */
1169         param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100;
1170         return 1;
1171 }
1172
1173 static void mke2fs_clean_up(void)
1174 {
1175         if (ENABLE_FEATURE_CLEAN_UP && journal_device) free(journal_device);
1176 }
1177
1178 int mke2fs_main (int argc, char **argv);
1179 int mke2fs_main (int argc, char **argv)
1180 {
1181         errcode_t       retval;
1182         ext2_filsys     fs;
1183         badblocks_list  bb_list = 0;
1184         unsigned int    i;
1185         int             val;
1186         io_manager      io_ptr;
1187
1188         if (ENABLE_FEATURE_CLEAN_UP)
1189                 atexit(mke2fs_clean_up);
1190         if(!PRS(argc, argv))
1191                 return 0;
1192
1193 #ifdef CONFIG_TESTIO_DEBUG
1194         io_ptr = test_io_manager;
1195         test_io_backing_manager = unix_io_manager;
1196 #else
1197         io_ptr = unix_io_manager;
1198 #endif
1199
1200         /*
1201          * Initialize the superblock....
1202          */
1203         retval = ext2fs_initialize(device_name, 0, &param,
1204                                    io_ptr, &fs);
1205         mke2fs_error_msg_and_die(retval, "set up superblock");
1206
1207         /*
1208          * Wipe out the old on-disk superblock
1209          */
1210         if (!noaction)
1211                 zap_sector(fs, 2, 6);
1212
1213         /*
1214          * Generate a UUID for it...
1215          */
1216         uuid_generate(fs->super->s_uuid);
1217
1218         /*
1219          * Initialize the directory index variables
1220          */
1221         fs->super->s_def_hash_version = EXT2_HASH_TEA;
1222         uuid_generate((unsigned char *) fs->super->s_hash_seed);
1223
1224         /*
1225          * Add "jitter" to the superblock's check interval so that we
1226          * don't check all the filesystems at the same time.  We use a
1227          * kludgy hack of using the UUID to derive a random jitter value.
1228          */
1229         for (i = 0, val = 0; i < sizeof(fs->super->s_uuid); i++)
1230                 val += fs->super->s_uuid[i];
1231         fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
1232
1233         /*
1234          * Override the creator OS, if applicable
1235          */
1236         if (creator_os && !set_os(fs->super, creator_os)) {
1237                 bb_error_msg_and_die("unknown os - %s", creator_os);
1238         }
1239
1240         /*
1241          * For the Hurd, we will turn off filetype since it doesn't
1242          * support it.
1243          */
1244         if (fs->super->s_creator_os == EXT2_OS_HURD)
1245                 fs->super->s_feature_incompat &=
1246                         ~EXT2_FEATURE_INCOMPAT_FILETYPE;
1247
1248         /*
1249          * Set the volume label...
1250          */
1251         if (volume_label) {
1252                 snprintf(fs->super->s_volume_name, sizeof(fs->super->s_volume_name), "%s", volume_label);
1253         }
1254
1255         /*
1256          * Set the last mount directory
1257          */
1258         if (mount_dir) {
1259                 snprintf(fs->super->s_last_mounted, sizeof(fs->super->s_last_mounted), "%s", mount_dir);
1260         }
1261
1262         if (!quiet || noaction)
1263                 show_stats(fs);
1264
1265         if (noaction)
1266                 return 0;
1267
1268         if (fs->super->s_feature_incompat &
1269             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1270                 create_journal_dev(fs);
1271                 return (ext2fs_close(fs) ? 1 : 0);
1272         }
1273
1274         if (bad_blocks_filename)
1275                 read_bb_file(fs, &bb_list, bad_blocks_filename);
1276         if (cflag)
1277                 test_disk(fs, &bb_list);
1278
1279         handle_bad_blocks(fs, bb_list);
1280         fs->stride = fs_stride;
1281         retval = ext2fs_allocate_tables(fs);
1282         mke2fs_error_msg_and_die(retval, "allocate filesystem tables");
1283         if (super_only) {
1284                 fs->super->s_state |= EXT2_ERROR_FS;
1285                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
1286         } else {
1287                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
1288                 unsigned int rsv = 65536 / fs->blocksize;
1289                 unsigned long blocks = fs->super->s_blocks_count;
1290                 unsigned long start;
1291                 blk_t ret_blk;
1292
1293 #ifdef ZAP_BOOTBLOCK
1294                 zap_sector(fs, 0, 2);
1295 #endif
1296
1297                 /*
1298                  * Wipe out any old MD RAID (or other) metadata at the end
1299                  * of the device.  This will also verify that the device is
1300                  * as large as we think.  Be careful with very small devices.
1301                  */
1302                 start = (blocks & ~(rsv - 1));
1303                 if (start > rsv)
1304                         start -= rsv;
1305                 if (start > 0)
1306                         retval = zero_blocks(fs, start, blocks - start,
1307                                              NULL, &ret_blk, NULL);
1308
1309                 mke2fs_warning_msg(retval, "cannot zero block %u at end of filesystem", ret_blk);
1310                 write_inode_tables(fs);
1311                 create_root_dir(fs);
1312                 create_lost_and_found(fs);
1313                 reserve_inodes(fs);
1314                 create_bad_block_inode(fs, bb_list);
1315                 if (fs->super->s_feature_compat &
1316                     EXT2_FEATURE_COMPAT_RESIZE_INODE) {
1317                         retval = ext2fs_create_resize_inode(fs);
1318                         mke2fs_error_msg_and_die(retval, "reserve blocks for online resize");
1319                 }
1320         }
1321
1322         if (journal_device) {
1323                 make_journal_device(journal_device, fs, quiet, force);
1324         } else if (journal_size) {
1325                 make_journal_blocks(fs, journal_size, journal_flags, quiet);
1326         }
1327
1328         mke2fs_verbose("Writing superblocks and filesystem accounting information: ");
1329         retval = ext2fs_flush(fs);
1330         mke2fs_warning_msg(retval, "had trouble writing out superblocks");
1331         mke2fs_verbose_done();
1332         if (!quiet && !getenv("MKE2FS_SKIP_CHECK_MSG"))
1333                 print_check_message(fs);
1334         val = ext2fs_close(fs);
1335         return (retval || val) ? 1 : 0;
1336 }