1 /* grub-setup.c - make GRUB usable */
3 * GRUB -- GRand Unified Bootloader
4 * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc.
6 * GRUB is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * GRUB is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
21 #include <grub/types.h>
22 #include <grub/emu/misc.h>
23 #include <grub/util/misc.h>
24 #include <grub/device.h>
25 #include <grub/disk.h>
26 #include <grub/file.h>
28 #include <grub/partition.h>
30 #include <grub/emu/hostdisk.h>
31 #include <grub/term.h>
32 #include <grub/i18n.h>
34 #ifdef GRUB_SETUP_SPARC64
35 #include <grub/util/ofpath.h>
36 #include <grub/sparc64/ieee1275/boot.h>
37 #include <grub/sparc64/ieee1275/kernel.h>
39 #include <grub/i386/pc/boot.h>
40 #include <grub/i386/pc/kernel.h>
47 #include <sys/types.h>
51 #include <grub/emu/getroot.h>
53 #include <grub/reed_solomon.h>
54 #include <grub/msdos_partition.h>
55 #include <grub/crypto.h>
56 #include <grub/util/install.h>
57 #include <grub/emu/hostfile.h>
61 /* On SPARC this program fills in various fields inside of the 'boot' and 'core'
64 * The 'boot' image needs to know the OBP path name of the root
65 * device. It also needs to know the initial block number of
66 * 'core' (which is 'diskboot' concatenated with 'kernel' and
67 * all the modules, this is created by grub-mkimage). This resulting
68 * 'boot' image is 512 bytes in size and is placed in the second block
71 * The initial 'diskboot' block acts as a loader for the actual GRUB
72 * kernel. It contains the loading code and then a block list.
74 * The block list of 'core' starts at the end of the 'diskboot' image
75 * and works it's way backwards towards the end of the code of 'diskboot'.
77 * We patch up the images with the necessary values and write out the
81 #ifdef GRUB_SETUP_SPARC64
82 #define grub_target_to_host16(x) grub_be_to_cpu16(x)
83 #define grub_target_to_host32(x) grub_be_to_cpu32(x)
84 #define grub_target_to_host64(x) grub_be_to_cpu64(x)
85 #define grub_host_to_target16(x) grub_cpu_to_be16(x)
86 #define grub_host_to_target32(x) grub_cpu_to_be32(x)
87 #define grub_host_to_target64(x) grub_cpu_to_be64(x)
88 #elif defined (GRUB_SETUP_BIOS)
89 #define grub_target_to_host16(x) grub_le_to_cpu16(x)
90 #define grub_target_to_host32(x) grub_le_to_cpu32(x)
91 #define grub_target_to_host64(x) grub_le_to_cpu64(x)
92 #define grub_host_to_target16(x) grub_cpu_to_le16(x)
93 #define grub_host_to_target32(x) grub_cpu_to_le32(x)
94 #define grub_host_to_target64(x) grub_cpu_to_le64(x)
100 write_rootdev (grub_device_t root_dev,
101 char *boot_img, grub_uint64_t first_sector)
103 #ifdef GRUB_SETUP_BIOS
105 grub_uint8_t *boot_drive;
107 boot_drive = (grub_uint8_t *) (boot_img + GRUB_BOOT_MACHINE_BOOT_DRIVE);
108 kernel_sector = (boot_img + GRUB_BOOT_MACHINE_KERNEL_SECTOR);
110 /* FIXME: can this be skipped? */
113 grub_set_unaligned64 (kernel_sector, grub_cpu_to_le64 (first_sector));
116 #ifdef GRUB_SETUP_SPARC64
119 kernel_byte = (boot_img + GRUB_BOOT_AOUT_HEADER_SIZE
120 + GRUB_BOOT_MACHINE_KERNEL_BYTE);
121 grub_set_unaligned64 (kernel_byte,
122 grub_cpu_to_be64 (first_sector << GRUB_DISK_SECTOR_BITS));
127 #ifdef GRUB_SETUP_SPARC64
128 #define BOOT_SECTOR 1
130 #define BOOT_SECTOR 0
133 /* Helper for setup. */
137 struct grub_boot_blocklist *first_block, *block;
138 #ifdef GRUB_SETUP_BIOS
139 grub_uint16_t current_segment;
141 grub_uint16_t last_length;
142 grub_disk_addr_t first_sector;
145 /* Helper for setup. */
147 save_blocklists (grub_disk_addr_t sector, unsigned offset, unsigned length,
150 struct blocklists *bl = data;
151 struct grub_boot_blocklist *prev = bl->block + 1;
152 grub_uint64_t seclen;
154 grub_util_info ("saving <%" GRUB_HOST_PRIuLONG_LONG ",%u,%u>",
155 (unsigned long long) sector, offset, length);
157 if (bl->first_sector == (grub_disk_addr_t) -1)
159 if (offset != 0 || length < GRUB_DISK_SECTOR_SIZE)
160 grub_util_error ("%s", _("the first sector of the core file is not sector-aligned"));
162 bl->first_sector = sector;
164 length -= GRUB_DISK_SECTOR_SIZE;
169 if (offset != 0 || bl->last_length != 0)
170 grub_util_error ("%s", _("non-sector-aligned data is found in the core file"));
172 seclen = (length + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS;
174 if (bl->block != bl->first_block
175 && (grub_target_to_host64 (prev->start)
176 + grub_target_to_host16 (prev->len)) == sector)
178 grub_uint16_t t = grub_target_to_host16 (prev->len);
180 prev->len = grub_host_to_target16 (t);
184 bl->block->start = grub_host_to_target64 (sector);
185 bl->block->len = grub_host_to_target16 (seclen);
186 #ifdef GRUB_SETUP_BIOS
187 bl->block->segment = grub_host_to_target16 (bl->current_segment);
192 grub_util_error ("%s", _("the sectors of the core file are too fragmented"));
195 bl->last_length = length & (GRUB_DISK_SECTOR_SIZE - 1);
196 #ifdef GRUB_SETUP_BIOS
197 bl->current_segment += seclen << (GRUB_DISK_SECTOR_BITS - 4);
201 #ifdef GRUB_SETUP_BIOS
202 /* Context for setup/identify_partmap. */
203 struct identify_partmap_ctx
205 grub_partition_map_t dest_partmap;
206 grub_partition_t container;
207 int multiple_partmaps;
211 Unlike root_dev, with dest_dev we're interested in the partition map even
212 if dest_dev itself is a whole disk. */
214 identify_partmap (grub_disk_t disk __attribute__ ((unused)),
215 const grub_partition_t p, void *data)
217 struct identify_partmap_ctx *ctx = data;
219 if (p->parent != ctx->container)
221 /* NetBSD and OpenBSD subpartitions have metadata inside a partition,
222 so they are safe to ignore.
224 if (grub_strcmp (p->partmap->name, "netbsd") == 0
225 || grub_strcmp (p->partmap->name, "openbsd") == 0)
227 if (ctx->dest_partmap == NULL)
229 ctx->dest_partmap = p->partmap;
232 if (ctx->dest_partmap == p->partmap)
234 ctx->multiple_partmaps = 1;
239 #ifdef GRUB_SETUP_BIOS
240 #define SETUP grub_util_bios_setup
241 #elif GRUB_SETUP_SPARC64
242 #define SETUP grub_util_sparc_setup
244 #error "Shouldn't happen"
248 SETUP (const char *dir,
249 const char *boot_file, const char *core_file,
250 const char *dest, int force,
251 int fs_probe, int allow_floppy,
252 int add_rs_codes __attribute__ ((unused))) /* unused on sparc64 */
255 char *boot_img, *core_img, *boot_path;
257 size_t boot_size, core_size;
258 #ifdef GRUB_SETUP_BIOS
259 grub_uint16_t core_sectors;
261 grub_device_t root_dev = 0, dest_dev, core_dev;
263 struct blocklists bl;
265 bl.first_sector = (grub_disk_addr_t) -1;
267 #ifdef GRUB_SETUP_BIOS
269 GRUB_BOOT_I386_PC_KERNEL_SEG + (GRUB_DISK_SECTOR_SIZE >> 4);
273 /* Read the boot image by the OS service. */
274 boot_path = grub_util_get_path (dir, boot_file);
275 boot_size = grub_util_get_image_size (boot_path);
276 if (boot_size != GRUB_DISK_SECTOR_SIZE)
277 grub_util_error (_("the size of `%s' is not %u"),
278 boot_path, GRUB_DISK_SECTOR_SIZE);
279 boot_img = grub_util_read_image (boot_path);
282 core_path = grub_util_get_path (dir, core_file);
283 core_size = grub_util_get_image_size (core_path);
284 #ifdef GRUB_SETUP_BIOS
285 core_sectors = ((core_size + GRUB_DISK_SECTOR_SIZE - 1)
286 >> GRUB_DISK_SECTOR_BITS);
288 if (core_size < GRUB_DISK_SECTOR_SIZE)
289 grub_util_error (_("the size of `%s' is too small"), core_path);
290 #ifdef GRUB_SETUP_BIOS
291 if (core_size > 0xFFFF * GRUB_DISK_SECTOR_SIZE)
292 grub_util_error (_("the size of `%s' is too large"), core_path);
295 core_img = grub_util_read_image (core_path);
297 /* Have FIRST_BLOCK to point to the first blocklist. */
298 bl.first_block = (struct grub_boot_blocklist *) (core_img
299 + GRUB_DISK_SECTOR_SIZE
300 - sizeof (*bl.block));
301 grub_util_info ("root is `%s', dest is `%s'", root, dest);
303 grub_util_info ("Opening dest");
304 dest_dev = grub_device_open (dest);
306 grub_util_error ("%s", grub_errmsg);
311 char **root_devices = grub_guess_root_devices (dir);
316 grub_util_error (_("cannot find a device for %s (is /dev mounted?)"), dir);
318 for (cur = root_devices; *cur; cur++)
321 grub_device_t try_dev;
323 drive = grub_util_get_grub_dev (*cur);
326 try_dev = grub_device_open (drive);
332 if (!found && try_dev->disk->id == dest_dev->disk->id
333 && try_dev->disk->dev->id == dest_dev->disk->dev->id)
336 grub_device_close (root_dev);
349 grub_device_close (try_dev);
354 grub_util_error ("guessing the root device failed, because of `%s'",
357 grub_util_info ("guessed root_dev `%s' from "
358 "dir `%s'", root_dev->disk->name, dir);
360 for (cur = root_devices; *cur; cur++)
365 grub_util_info ("setting the root device to `%s'", root);
366 if (grub_env_set ("root", root) != GRUB_ERR_NONE)
367 grub_util_error ("%s", grub_errmsg);
369 #ifdef GRUB_SETUP_BIOS
372 grub_uint8_t *boot_drive_check;
374 /* Read the original sector from the disk. */
375 tmp_img = xmalloc (GRUB_DISK_SECTOR_SIZE);
376 if (grub_disk_read (dest_dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, tmp_img))
377 grub_util_error ("%s", grub_errmsg);
379 boot_drive_check = (grub_uint8_t *) (boot_img
380 + GRUB_BOOT_MACHINE_DRIVE_CHECK);
381 /* Copy the possible DOS BPB. */
382 memcpy (boot_img + GRUB_BOOT_MACHINE_BPB_START,
383 tmp_img + GRUB_BOOT_MACHINE_BPB_START,
384 GRUB_BOOT_MACHINE_BPB_END - GRUB_BOOT_MACHINE_BPB_START);
386 /* If DEST_DRIVE is a hard disk, enable the workaround, which is
387 for buggy BIOSes which don't pass boot drive correctly. Instead,
388 they pass 0x00 or 0x01 even when booted from 0x80. */
389 if (!allow_floppy && !grub_util_biosdisk_is_floppy (dest_dev->disk))
391 /* Replace the jmp (2 bytes) with double nop's. */
392 boot_drive_check[0] = 0x90;
393 boot_drive_check[1] = 0x90;
396 struct identify_partmap_ctx ctx = {
397 .dest_partmap = NULL,
398 .container = dest_dev->disk->partition,
399 .multiple_partmaps = 0
403 grub_disk_addr_t *sectors;
406 unsigned int nsec, maxsec;
408 grub_partition_iterate (dest_dev->disk, identify_partmap, &ctx);
410 /* Copy the partition table. */
411 if (ctx.dest_partmap ||
412 (!allow_floppy && !grub_util_biosdisk_is_floppy (dest_dev->disk)))
413 memcpy (boot_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
414 tmp_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
415 GRUB_BOOT_MACHINE_PART_END - GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC);
420 && grub_strcmp (ctx.container->partmap->name, "msdos") == 0
422 && (ctx.container->msdostype == GRUB_PC_PARTITION_TYPE_NETBSD
423 || ctx.container->msdostype == GRUB_PC_PARTITION_TYPE_OPENBSD))
425 grub_util_warn ("%s", _("Attempting to install GRUB to a disk with multiple partition labels or both partition label and filesystem. This is not supported yet."));
426 goto unable_to_embed;
429 fs = grub_fs_probe (dest_dev);
431 grub_errno = GRUB_ERR_NONE;
433 is_ldm = grub_util_is_ldm (dest_dev->disk);
437 if (!fs && !ctx.dest_partmap)
438 grub_util_error (_("unable to identify a filesystem in %s; safety check can't be performed"),
439 dest_dev->disk->name);
440 if (fs && !fs->reserved_first_sector)
441 /* TRANSLATORS: Filesystem may reserve the space just GRUB isn't sure about it. */
442 grub_util_error (_("%s appears to contain a %s filesystem which isn't known to "
443 "reserve space for DOS-style boot. Installing GRUB there could "
444 "result in FILESYSTEM DESTRUCTION if valuable data is overwritten "
445 "by grub-setup (--skip-fs-probe disables this "
446 "check, use at your own risk)"), dest_dev->disk->name, fs->name);
448 if (ctx.dest_partmap && strcmp (ctx.dest_partmap->name, "msdos") != 0
449 && strcmp (ctx.dest_partmap->name, "gpt") != 0
450 && strcmp (ctx.dest_partmap->name, "bsd") != 0
451 && strcmp (ctx.dest_partmap->name, "netbsd") != 0
452 && strcmp (ctx.dest_partmap->name, "openbsd") != 0
453 && strcmp (ctx.dest_partmap->name, "sunpc") != 0)
454 /* TRANSLATORS: Partition map may reserve the space just GRUB isn't sure about it. */
455 grub_util_error (_("%s appears to contain a %s partition map which isn't known to "
456 "reserve space for DOS-style boot. Installing GRUB there could "
457 "result in FILESYSTEM DESTRUCTION if valuable data is overwritten "
458 "by grub-setup (--skip-fs-probe disables this "
459 "check, use at your own risk)"), dest_dev->disk->name, ctx.dest_partmap->name);
460 if (is_ldm && ctx.dest_partmap && strcmp (ctx.dest_partmap->name, "msdos") != 0
461 && strcmp (ctx.dest_partmap->name, "gpt") != 0)
462 grub_util_error (_("%s appears to contain a %s partition map and "
463 "LDM which isn't known to be a safe combination."
464 " Installing GRUB there could "
465 "result in FILESYSTEM DESTRUCTION if valuable data"
467 "by grub-setup (--skip-fs-probe disables this "
468 "check, use at your own risk)"),
469 dest_dev->disk->name, ctx.dest_partmap->name);
473 if (! ctx.dest_partmap && ! fs && !is_ldm)
475 grub_util_warn ("%s", _("Attempting to install GRUB to a partitionless disk or to a partition. This is a BAD idea."));
476 goto unable_to_embed;
478 if (ctx.multiple_partmaps || (ctx.dest_partmap && fs) || (is_ldm && fs))
480 grub_util_warn ("%s", _("Attempting to install GRUB to a disk with multiple partition labels. This is not supported yet."));
481 goto unable_to_embed;
484 if (ctx.dest_partmap && !ctx.dest_partmap->embed)
486 grub_util_warn (_("Partition style `%s' doesn't support embedding"),
487 ctx.dest_partmap->name);
488 goto unable_to_embed;
491 if (fs && !fs->embed)
493 grub_util_warn (_("File system `%s' doesn't support embedding"),
495 goto unable_to_embed;
501 maxsec = 2 * core_sectors;
503 maxsec = core_sectors;
505 if (maxsec > ((0x78000 - GRUB_KERNEL_I386_PC_LINK_ADDR)
506 >> GRUB_DISK_SECTOR_BITS))
507 maxsec = ((0x78000 - GRUB_KERNEL_I386_PC_LINK_ADDR)
508 >> GRUB_DISK_SECTOR_BITS);
511 err = grub_util_ldm_embed (dest_dev->disk, &nsec, maxsec,
512 GRUB_EMBED_PCBIOS, §ors);
513 else if (ctx.dest_partmap)
514 err = ctx.dest_partmap->embed (dest_dev->disk, &nsec, maxsec,
515 GRUB_EMBED_PCBIOS, §ors);
517 err = fs->embed (dest_dev, &nsec, maxsec,
518 GRUB_EMBED_PCBIOS, §ors);
519 if (!err && nsec < core_sectors)
521 err = grub_error (GRUB_ERR_OUT_OF_RANGE,
522 N_("Your embedding area is unusually small. "
523 "core.img won't fit in it."));
528 grub_util_warn ("%s", grub_errmsg);
529 grub_errno = GRUB_ERR_NONE;
530 goto unable_to_embed;
533 assert (nsec <= maxsec);
535 /* Clean out the blocklists. */
536 bl.block = bl.first_block;
537 while (bl.block->len)
539 grub_memset (bl.block, 0, sizeof (*bl.block));
543 if ((char *) bl.block <= core_img)
544 grub_util_error ("%s", _("no terminator in the core image"));
547 bl.block = bl.first_block;
548 for (i = 0; i < nsec; i++)
549 save_blocklists (sectors[i] + grub_partition_get_start (ctx.container),
550 0, GRUB_DISK_SECTOR_SIZE, &bl);
552 /* Make sure that the last blocklist is a terminator. */
553 if (bl.block == bl.first_block)
557 bl.block->segment = 0;
559 write_rootdev (root_dev, boot_img, bl.first_sector);
561 /* Round up to the nearest sector boundary, and zero the extra memory */
562 core_img = xrealloc (core_img, nsec * GRUB_DISK_SECTOR_SIZE);
563 assert (core_img && (nsec * GRUB_DISK_SECTOR_SIZE >= core_size));
564 memset (core_img + core_size, 0, nsec * GRUB_DISK_SECTOR_SIZE - core_size);
566 bl.first_block = (struct grub_boot_blocklist *) (core_img
567 + GRUB_DISK_SECTOR_SIZE
568 - sizeof (*bl.block));
570 grub_size_t no_rs_length;
571 no_rs_length = grub_target_to_host16
572 (grub_get_unaligned16 (core_img
573 + GRUB_DISK_SECTOR_SIZE
574 + GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_LENGTH));
576 if (no_rs_length == 0xffff)
577 grub_util_error ("%s", _("core.img version mismatch"));
581 grub_set_unaligned32 ((core_img + GRUB_DISK_SECTOR_SIZE
582 + GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY),
583 grub_host_to_target32 (nsec * GRUB_DISK_SECTOR_SIZE - core_size));
585 void *tmp = xmalloc (core_size);
586 grub_memcpy (tmp, core_img, core_size);
587 grub_reed_solomon_add_redundancy (core_img + no_rs_length + GRUB_DISK_SECTOR_SIZE,
588 core_size - no_rs_length - GRUB_DISK_SECTOR_SIZE,
589 nsec * GRUB_DISK_SECTOR_SIZE
591 assert (grub_memcmp (tmp, core_img, core_size) == 0);
595 /* Write the core image onto the disk. */
596 for (i = 0; i < nsec; i++)
597 grub_disk_write (dest_dev->disk, sectors[i], 0,
598 GRUB_DISK_SECTOR_SIZE,
599 core_img + i * GRUB_DISK_SECTOR_SIZE);
609 if (dest_dev->disk->dev->id != root_dev->disk->dev->id)
610 grub_util_error ("%s", _("embedding is not possible, but this is required for "
611 "RAID and LVM install"));
615 fs = grub_fs_probe (root_dev);
617 grub_util_error (_("can't determine filesystem on %s"), root);
619 if (!fs->blocklist_install)
620 grub_util_error (_("filesystem `%s' doesn't support blocklists"),
624 #ifdef GRUB_SETUP_BIOS
625 if (dest_dev->disk->id != root_dev->disk->id
626 || dest_dev->disk->dev->id != root_dev->disk->dev->id)
627 /* TRANSLATORS: cross-disk refers to /boot being on one disk
628 but MBR on another. */
629 grub_util_error ("%s", _("embedding is not possible, but this is required for "
630 "cross-disk install"));
635 grub_util_warn ("%s", _("Embedding is not possible. GRUB can only be installed in this "
636 "setup by using blocklists. However, blocklists are UNRELIABLE and "
637 "their use is discouraged."));
639 /* TRANSLATORS: Here GRUB refuses to continue with blocklist install. */
640 grub_util_error ("%s", _("will not proceed with blocklists"));
642 /* The core image must be put on a filesystem unfortunately. */
643 grub_util_info ("will leave the core image on the filesystem");
645 grub_util_biosdisk_flush (root_dev->disk);
647 /* Clean out the blocklists. */
648 bl.block = bl.first_block;
649 while (bl.block->len)
653 #ifdef GRUB_SETUP_BIOS
654 bl.block->segment = 0;
659 if ((char *) bl.block <= core_img)
660 grub_util_error ("%s", _("no terminator in the core image"));
663 bl.block = bl.first_block;
665 grub_install_get_blocklist (root_dev, core_path, core_img, core_size,
666 save_blocklists, &bl);
668 if (bl.first_sector == (grub_disk_addr_t)-1)
669 grub_util_error ("%s", _("can't retrieve blocklists"));
671 #ifdef GRUB_SETUP_SPARC64
674 boot_devpath = (char *) (boot_img
675 + GRUB_BOOT_AOUT_HEADER_SIZE
676 + GRUB_BOOT_MACHINE_BOOT_DEVPATH);
677 if (dest_dev->disk->id != root_dev->disk->id
678 || dest_dev->disk->dev->id != root_dev->disk->dev->id)
682 = grub_util_devname_to_ofpath (grub_util_biosdisk_get_osdev (root_dev->disk));
683 /* FIXME handle NULL result */
684 grub_util_info ("dest_ofpath is `%s'", dest_ofpath);
685 strncpy (boot_devpath, dest_ofpath,
686 GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
687 - GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1);
688 boot_devpath[GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
689 - GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1] = 0;
694 grub_util_info ("non cross-disk install");
695 memset (boot_devpath, 0, GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
696 - GRUB_BOOT_MACHINE_BOOT_DEVPATH);
698 grub_util_info ("boot device path %s", boot_devpath);
702 write_rootdev (root_dev, boot_img, bl.first_sector);
704 /* Write the first two sectors of the core image onto the disk. */
705 grub_util_info ("opening the core image `%s'", core_path);
706 fp = grub_util_fd_open (core_path, GRUB_UTIL_FD_O_WRONLY);
707 if (! GRUB_UTIL_FD_IS_VALID (fp))
708 grub_util_error (_("cannot open `%s': %s"), core_path,
709 grub_util_fd_strerror ());
711 if (grub_util_fd_write (fp, core_img, GRUB_DISK_SECTOR_SIZE * 2)
712 != GRUB_DISK_SECTOR_SIZE * 2)
713 grub_util_error (_("cannot write to `%s': %s"),
714 core_path, strerror (errno));
715 grub_util_fd_sync (fp);
716 grub_util_fd_close (fp);
717 grub_util_biosdisk_flush (root_dev->disk);
719 grub_disk_cache_invalidate_all ();
722 char *buf, *ptr = core_img;
723 size_t len = core_size;
725 grub_partition_t container = core_dev->disk->partition;
728 core_dev->disk->partition = 0;
730 buf = xmalloc (core_size);
731 blk = bl.first_sector;
732 err = grub_disk_read (core_dev->disk, blk, 0, GRUB_DISK_SECTOR_SIZE, buf);
734 grub_util_error (_("cannot read `%s': %s"), core_dev->disk->name,
736 if (grub_memcmp (buf, ptr, GRUB_DISK_SECTOR_SIZE) != 0)
737 grub_util_error ("%s", _("blocklists are invalid"));
739 ptr += GRUB_DISK_SECTOR_SIZE;
740 len -= GRUB_DISK_SECTOR_SIZE;
742 bl.block = bl.first_block;
743 while (bl.block->len)
745 size_t cur = grub_target_to_host16 (bl.block->len) << GRUB_DISK_SECTOR_BITS;
746 blk = grub_target_to_host64 (bl.block->start);
751 err = grub_disk_read (core_dev->disk, blk, 0, cur, buf);
753 grub_util_error (_("cannot read `%s': %s"), core_dev->disk->name,
756 if (grub_memcmp (buf, ptr, cur) != 0)
757 grub_util_error ("%s", _("blocklists are invalid"));
763 if ((char *) bl.block <= core_img)
764 grub_util_error ("%s", _("no terminator in the core image"));
767 grub_util_error ("%s", _("blocklists are incomplete"));
768 core_dev->disk->partition = container;
772 #ifdef GRUB_SETUP_BIOS
776 /* Write the boot image onto the disk. */
777 if (grub_disk_write (dest_dev->disk, BOOT_SECTOR,
778 0, GRUB_DISK_SECTOR_SIZE, boot_img))
779 grub_util_error ("%s", grub_errmsg);
781 grub_util_biosdisk_flush (root_dev->disk);
782 grub_util_biosdisk_flush (dest_dev->disk);
787 grub_device_close (dest_dev);
788 grub_device_close (root_dev);