diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:54:16 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:54:16 +0000 |
commit | 485f6ecd453d8a2fd8b9b9fadea03159d8b50797 (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /util/setup.c | |
parent | Initial commit. (diff) | |
download | grub2-485f6ecd453d8a2fd8b9b9fadea03159d8b50797.tar.xz grub2-485f6ecd453d8a2fd8b9b9fadea03159d8b50797.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'util/setup.c')
-rw-r--r-- | util/setup.c | 877 |
1 files changed, 877 insertions, 0 deletions
diff --git a/util/setup.c b/util/setup.c new file mode 100644 index 0000000..da5f2c0 --- /dev/null +++ b/util/setup.c @@ -0,0 +1,877 @@ +/* grub-setup.c - make GRUB usable */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <grub/types.h> +#include <grub/emu/misc.h> +#include <grub/util/misc.h> +#include <grub/device.h> +#include <grub/disk.h> +#include <grub/file.h> +#include <grub/fs.h> +#include <grub/partition.h> +#include <grub/env.h> +#include <grub/emu/hostdisk.h> +#include <grub/term.h> +#include <grub/i18n.h> + +#ifdef GRUB_SETUP_SPARC64 +#include <grub/util/ofpath.h> +#include <grub/sparc64/ieee1275/boot.h> +#include <grub/sparc64/ieee1275/kernel.h> +#else +#include <grub/i386/pc/boot.h> +#include <grub/i386/pc/kernel.h> +#endif + +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <dirent.h> +#include <assert.h> +#include <grub/emu/getroot.h> +#include "progname.h" +#include <grub/reed_solomon.h> +#include <grub/msdos_partition.h> +#include <grub/crypto.h> +#include <grub/util/install.h> +#include <grub/emu/hostfile.h> + +#include <errno.h> + +/* On SPARC this program fills in various fields inside of the 'boot' and 'core' + * image files. + * + * The 'boot' image needs to know the OBP path name of the root + * device. It also needs to know the initial block number of + * 'core' (which is 'diskboot' concatenated with 'kernel' and + * all the modules, this is created by grub-mkimage). This resulting + * 'boot' image is 512 bytes in size and is placed in the second block + * of a partition. + * + * The initial 'diskboot' block acts as a loader for the actual GRUB + * kernel. It contains the loading code and then a block list. + * + * The block list of 'core' starts at the end of the 'diskboot' image + * and works it's way backwards towards the end of the code of 'diskboot'. + * + * We patch up the images with the necessary values and write out the + * result. + */ + +#ifdef GRUB_SETUP_SPARC64 +#define grub_target_to_host16(x) grub_be_to_cpu16(x) +#define grub_target_to_host32(x) grub_be_to_cpu32(x) +#define grub_target_to_host64(x) grub_be_to_cpu64(x) +#define grub_host_to_target16(x) grub_cpu_to_be16(x) +#define grub_host_to_target32(x) grub_cpu_to_be32(x) +#define grub_host_to_target64(x) grub_cpu_to_be64(x) +#elif defined (GRUB_SETUP_BIOS) +#define grub_target_to_host16(x) grub_le_to_cpu16(x) +#define grub_target_to_host32(x) grub_le_to_cpu32(x) +#define grub_target_to_host64(x) grub_le_to_cpu64(x) +#define grub_host_to_target16(x) grub_cpu_to_le16(x) +#define grub_host_to_target32(x) grub_cpu_to_le32(x) +#define grub_host_to_target64(x) grub_cpu_to_le64(x) +#else +#error Complete this +#endif + +static void +write_rootdev (grub_device_t root_dev, + char *boot_img, grub_uint64_t first_sector) +{ +#ifdef GRUB_SETUP_BIOS + { + grub_uint8_t *boot_drive; + void *kernel_sector; + boot_drive = (grub_uint8_t *) (boot_img + GRUB_BOOT_MACHINE_BOOT_DRIVE); + kernel_sector = (boot_img + GRUB_BOOT_MACHINE_KERNEL_SECTOR); + + /* FIXME: can this be skipped? */ + *boot_drive = 0xFF; + + grub_set_unaligned64 (kernel_sector, grub_cpu_to_le64 (first_sector)); + } +#endif +#ifdef GRUB_SETUP_SPARC64 + { + void *kernel_byte; + kernel_byte = (boot_img + GRUB_BOOT_AOUT_HEADER_SIZE + + GRUB_BOOT_MACHINE_KERNEL_BYTE); + grub_set_unaligned64 (kernel_byte, + grub_cpu_to_be64 (first_sector << GRUB_DISK_SECTOR_BITS)); + } +#endif +} + +#ifdef GRUB_SETUP_SPARC64 +#define BOOT_SECTOR 1 +#else +#define BOOT_SECTOR 0 +#endif + +/* Helper for setup. */ + +struct blocklists +{ + struct grub_boot_blocklist *first_block, *block; +#ifdef GRUB_SETUP_BIOS + grub_uint16_t current_segment; +#endif +#ifdef GRUB_SETUP_SPARC64 + grub_uint64_t gpt_offset; +#endif + grub_uint16_t last_length; + grub_disk_addr_t first_sector; +}; + +/* Helper for setup. */ +static void +save_blocklists (grub_disk_addr_t sector, unsigned offset, unsigned length, + void *data) +{ + struct blocklists *bl = data; + struct grub_boot_blocklist *prev = bl->block + 1; + grub_uint64_t seclen; + +#ifdef GRUB_SETUP_SPARC64 + sector -= bl->gpt_offset; +#endif + + grub_util_info ("saving <%" GRUB_HOST_PRIuLONG_LONG ",%u,%u>", + (unsigned long long) sector, offset, length); + + if (bl->first_sector == (grub_disk_addr_t) -1) + { + if (offset != 0 || length < GRUB_DISK_SECTOR_SIZE) + grub_util_error ("%s", _("the first sector of the core file is not sector-aligned")); + + bl->first_sector = sector; + sector++; + length -= GRUB_DISK_SECTOR_SIZE; + if (!length) + return; + } + + if (offset != 0 || bl->last_length != 0) + grub_util_error ("%s", _("non-sector-aligned data is found in the core file")); + + seclen = (length + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS; + + if (bl->block != bl->first_block + && (grub_target_to_host64 (prev->start) + + grub_target_to_host16 (prev->len)) == sector) + { + grub_uint16_t t = grub_target_to_host16 (prev->len); + t += seclen; + prev->len = grub_host_to_target16 (t); + } + else + { + bl->block->start = grub_host_to_target64 (sector); + bl->block->len = grub_host_to_target16 (seclen); +#ifdef GRUB_SETUP_BIOS + bl->block->segment = grub_host_to_target16 (bl->current_segment); +#endif + + bl->block--; + if (bl->block->len) + grub_util_error ("%s", _("the sectors of the core file are too fragmented")); + } + + bl->last_length = length & (GRUB_DISK_SECTOR_SIZE - 1); +#ifdef GRUB_SETUP_BIOS + bl->current_segment += seclen << (GRUB_DISK_SECTOR_BITS - 4); +#endif +} + +/* Context for setup/identify_partmap. */ +struct identify_partmap_ctx +{ + grub_partition_map_t dest_partmap; + grub_partition_t container; + int multiple_partmaps; +}; + +/* Helper for setup. + Unlike root_dev, with dest_dev we're interested in the partition map even + if dest_dev itself is a whole disk. */ +static int +identify_partmap (grub_disk_t disk __attribute__ ((unused)), + const grub_partition_t p, void *data) +{ + struct identify_partmap_ctx *ctx = data; + + if (p->parent != ctx->container) + return 0; + /* NetBSD and OpenBSD subpartitions have metadata inside a partition, + so they are safe to ignore. + */ + if (grub_strcmp (p->partmap->name, "netbsd") == 0 + || grub_strcmp (p->partmap->name, "openbsd") == 0) + return 0; + if (ctx->dest_partmap == NULL) + { + ctx->dest_partmap = p->partmap; + return 0; + } + if (ctx->dest_partmap == p->partmap) + return 0; + ctx->multiple_partmaps = 1; + return 1; +} + +#ifdef GRUB_SETUP_BIOS +#define SETUP grub_util_bios_setup +#elif GRUB_SETUP_SPARC64 +#define SETUP grub_util_sparc_setup +#else +#error "Shouldn't happen" +#endif + +void +SETUP (const char *dir, + const char *boot_file, const char *core_file, + const char *dest, int force, + int fs_probe, int allow_floppy, + int add_rs_codes __attribute__ ((unused)), /* unused on sparc64 */ + int warn_small) +{ + char *core_path; + char *boot_img, *core_img, *boot_path; + char *root = 0; + size_t boot_size, core_size; + grub_uint16_t core_sectors; + grub_device_t root_dev = 0, dest_dev, core_dev; + grub_util_fd_t fp; + struct blocklists bl; + + bl.first_sector = (grub_disk_addr_t) -1; + +#ifdef GRUB_SETUP_BIOS + bl.current_segment = + GRUB_BOOT_I386_PC_KERNEL_SEG + (GRUB_DISK_SECTOR_SIZE >> 4); +#endif +#ifdef GRUB_SETUP_SPARC64 + bl.gpt_offset = 0; +#endif + bl.last_length = 0; + + /* Read the boot image by the OS service. */ + boot_path = grub_util_get_path (dir, boot_file); + boot_size = grub_util_get_image_size (boot_path); + if (boot_size != GRUB_DISK_SECTOR_SIZE) + grub_util_error (_("the size of `%s' is not %u"), + boot_path, GRUB_DISK_SECTOR_SIZE); + boot_img = grub_util_read_image (boot_path); + free (boot_path); + + core_path = grub_util_get_path (dir, core_file); + core_size = grub_util_get_image_size (core_path); + core_sectors = ((core_size + GRUB_DISK_SECTOR_SIZE - 1) + >> GRUB_DISK_SECTOR_BITS); + if (core_size < GRUB_DISK_SECTOR_SIZE) + grub_util_error (_("the size of `%s' is too small"), core_path); +#ifdef GRUB_SETUP_BIOS + if (core_size > 0xFFFF * GRUB_DISK_SECTOR_SIZE) + grub_util_error (_("the size of `%s' is too large"), core_path); +#endif + + core_img = grub_util_read_image (core_path); + + /* Have FIRST_BLOCK to point to the first blocklist. */ + bl.first_block = (struct grub_boot_blocklist *) (core_img + + GRUB_DISK_SECTOR_SIZE + - sizeof (*bl.block)); + + grub_util_info ("Opening dest `%s'", dest); + dest_dev = grub_device_open (dest); + if (! dest_dev) + grub_util_error ("%s", grub_errmsg); + + core_dev = dest_dev; + + { + char **root_devices = grub_guess_root_devices (dir); + char **cur; + int found = 0; + + if (!root_devices) + grub_util_error (_("cannot find a device for %s (is /dev mounted?)"), dir); + + for (cur = root_devices; *cur; cur++) + { + char *drive; + grub_device_t try_dev; + + drive = grub_util_get_grub_dev (*cur); + if (!drive) + continue; + try_dev = grub_device_open (drive); + if (! try_dev) + { + free (drive); + continue; + } + if (!found && try_dev->disk->id == dest_dev->disk->id + && try_dev->disk->dev->id == dest_dev->disk->dev->id) + { + if (root_dev) + grub_device_close (root_dev); + free (root); + root_dev = try_dev; + root = drive; + found = 1; + continue; + } + if (!root_dev) + { + root_dev = try_dev; + root = drive; + continue; + } + grub_device_close (try_dev); + free (drive); + } + if (!root_dev) + { + grub_util_error ("guessing the root device failed, because of `%s'", + grub_errmsg); + } + grub_util_info ("guessed root_dev `%s' from " + "dir `%s'", root_dev->disk->name, dir); + + for (cur = root_devices; *cur; cur++) + free (*cur); + free (root_devices); + } + + grub_util_info ("setting the root device to `%s'", root); + if (grub_env_set ("root", root) != GRUB_ERR_NONE) + grub_util_error ("%s", grub_errmsg); + + { +#ifdef GRUB_SETUP_BIOS + char *tmp_img; + grub_uint8_t *boot_drive_check; + + /* Read the original sector from the disk. */ + tmp_img = xmalloc (GRUB_DISK_SECTOR_SIZE); + if (grub_disk_read (dest_dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, tmp_img)) + grub_util_error ("%s", grub_errmsg); + + boot_drive_check = (grub_uint8_t *) (boot_img + + GRUB_BOOT_MACHINE_DRIVE_CHECK); + /* Copy the possible DOS BPB. */ + memcpy (boot_img + GRUB_BOOT_MACHINE_BPB_START, + tmp_img + GRUB_BOOT_MACHINE_BPB_START, + GRUB_BOOT_MACHINE_BPB_END - GRUB_BOOT_MACHINE_BPB_START); + + /* If DEST_DRIVE is a hard disk, enable the workaround, which is + for buggy BIOSes which don't pass boot drive correctly. Instead, + they pass 0x00 or 0x01 even when booted from 0x80. */ + if (!allow_floppy && !grub_util_biosdisk_is_floppy (dest_dev->disk)) + { + /* Replace the jmp (2 bytes) with double nop's. */ + boot_drive_check[0] = 0x90; + boot_drive_check[1] = 0x90; + } +#endif + + struct identify_partmap_ctx ctx = { + .dest_partmap = NULL, + .container = dest_dev->disk->partition, + .multiple_partmaps = 0 + }; + int is_ldm; + grub_err_t err; + grub_disk_addr_t *sectors; + int i; + grub_fs_t fs; + unsigned int nsec, maxsec; + + grub_partition_iterate (dest_dev->disk, identify_partmap, &ctx); + +#ifdef GRUB_SETUP_BIOS + /* Copy the partition table. */ + if (ctx.dest_partmap || + (!allow_floppy && !grub_util_biosdisk_is_floppy (dest_dev->disk))) + memcpy (boot_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC, + tmp_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC, + GRUB_BOOT_MACHINE_PART_END - GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC); + + free (tmp_img); +#endif + + if (ctx.container + && grub_strcmp (ctx.container->partmap->name, "msdos") == 0 + && ctx.dest_partmap + && (ctx.container->msdostype == GRUB_PC_PARTITION_TYPE_NETBSD + || ctx.container->msdostype == GRUB_PC_PARTITION_TYPE_OPENBSD)) + { + 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.")); + goto unable_to_embed; + } + + fs = grub_fs_probe (dest_dev); + if (!fs) + grub_errno = GRUB_ERR_NONE; + + is_ldm = grub_util_is_ldm (dest_dev->disk); + + if (fs_probe) + { + if (!fs && !ctx.dest_partmap) + grub_util_error (_("unable to identify a filesystem in %s; safety check can't be performed"), + dest_dev->disk->name); + if (fs && !fs->reserved_first_sector) + /* TRANSLATORS: Filesystem may reserve the space just GRUB isn't sure about it. */ + grub_util_error (_("%s appears to contain a %s filesystem which isn't known to " + "reserve space for DOS-style boot. Installing GRUB there could " + "result in FILESYSTEM DESTRUCTION if valuable data is overwritten " + "by grub-setup (--skip-fs-probe disables this " + "check, use at your own risk)"), dest_dev->disk->name, fs->name); + + if (ctx.dest_partmap && strcmp (ctx.dest_partmap->name, "msdos") != 0 + && strcmp (ctx.dest_partmap->name, "gpt") != 0 + && strcmp (ctx.dest_partmap->name, "bsd") != 0 + && strcmp (ctx.dest_partmap->name, "netbsd") != 0 + && strcmp (ctx.dest_partmap->name, "openbsd") != 0 + && strcmp (ctx.dest_partmap->name, "sunpc") != 0) + /* TRANSLATORS: Partition map may reserve the space just GRUB isn't sure about it. */ + grub_util_error (_("%s appears to contain a %s partition map which isn't known to " + "reserve space for DOS-style boot. Installing GRUB there could " + "result in FILESYSTEM DESTRUCTION if valuable data is overwritten " + "by grub-setup (--skip-fs-probe disables this " + "check, use at your own risk)"), dest_dev->disk->name, ctx.dest_partmap->name); + if (is_ldm && ctx.dest_partmap && strcmp (ctx.dest_partmap->name, "msdos") != 0 + && strcmp (ctx.dest_partmap->name, "gpt") != 0) + grub_util_error (_("%s appears to contain a %s partition map and " + "LDM which isn't known to be a safe combination." + " Installing GRUB there could " + "result in FILESYSTEM DESTRUCTION if valuable data" + " is overwritten " + "by grub-setup (--skip-fs-probe disables this " + "check, use at your own risk)"), + dest_dev->disk->name, ctx.dest_partmap->name); + + } + + if (! ctx.dest_partmap && ! fs && !is_ldm) + { + grub_util_warn ("%s", _("Attempting to install GRUB to a partitionless disk or to a partition. This is a BAD idea.")); + goto unable_to_embed; + } + if (ctx.multiple_partmaps || (ctx.dest_partmap && fs) || (is_ldm && fs)) + { + grub_util_warn ("%s", _("Attempting to install GRUB to a disk with multiple partition labels. This is not supported yet.")); + goto unable_to_embed; + } + + if (ctx.dest_partmap && !ctx.dest_partmap->embed) + { + grub_util_warn (_("Partition style `%s' doesn't support embedding"), + ctx.dest_partmap->name); + goto unable_to_embed; + } + + if (fs && !fs->fs_embed) + { + grub_util_warn (_("File system `%s' doesn't support embedding"), + fs->name); + goto unable_to_embed; + } + + nsec = core_sectors; + + if (add_rs_codes) + maxsec = 2 * core_sectors; + else + maxsec = core_sectors; + +#ifdef GRUB_SETUP_BIOS + if (maxsec > ((0x78000 - GRUB_KERNEL_I386_PC_LINK_ADDR) + >> GRUB_DISK_SECTOR_BITS)) + maxsec = ((0x78000 - GRUB_KERNEL_I386_PC_LINK_ADDR) + >> GRUB_DISK_SECTOR_BITS); +#endif + +#ifdef GRUB_SETUP_SPARC64 + /* + * On SPARC we need two extra. One is because we are combining the + * core.img with the boot.img. The other is because the boot sector + * starts at 1. + */ + nsec += 2; + maxsec += 2; +#endif + + if (is_ldm) + err = grub_util_ldm_embed (dest_dev->disk, &nsec, maxsec, + GRUB_EMBED_PCBIOS, §ors); + else if (ctx.dest_partmap) + err = ctx.dest_partmap->embed (dest_dev->disk, &nsec, maxsec, + GRUB_EMBED_PCBIOS, §ors, warn_small); + else + err = fs->fs_embed (dest_dev, &nsec, maxsec, + GRUB_EMBED_PCBIOS, §ors); + if (!err && nsec < core_sectors) + { + err = grub_error (GRUB_ERR_OUT_OF_RANGE, + N_("Your embedding area is unusually small. " + "core.img won't fit in it.")); + } + + if (err) + { + grub_util_warn ("%s", grub_errmsg); + grub_errno = GRUB_ERR_NONE; + goto unable_to_embed; + } + + assert (nsec <= maxsec); + + /* Clean out the blocklists. */ + bl.block = bl.first_block; + while (bl.block->len) + { + grub_memset (bl.block, 0, sizeof (*bl.block)); + + bl.block--; + + if ((char *) bl.block <= core_img) + grub_util_error ("%s", _("no terminator in the core image")); + } + + bl.block = bl.first_block; + for (i = 0; i < nsec; i++) + save_blocklists (sectors[i] + grub_partition_get_start (ctx.container), + 0, GRUB_DISK_SECTOR_SIZE, &bl); + + /* Make sure that the last blocklist is a terminator. */ + if (bl.block == bl.first_block) + bl.block--; + bl.block->start = 0; + bl.block->len = 0; +#ifdef GRUB_SETUP_BIOS + bl.block->segment = 0; +#endif + +#ifdef GRUB_SETUP_SPARC64 + { + /* + * On SPARC, the block-list entries need to be based off the beginning + * of the parition, not the beginning of the disk. + */ + struct grub_boot_blocklist *block; + block = bl.first_block; + + while (block->len) + { + block->start -= bl.first_sector; + block--; + } + } + + /* + * Reserve space for the boot block since it can not be in the + * Parition table on SPARC. + */ + assert (bl.first_block->len > 2); + bl.first_block->start += 2; + bl.first_block->len -= 2; + write_rootdev (root_dev, boot_img, sectors[BOOT_SECTOR + 1] - bl.first_sector); +#endif + +#ifdef GRUB_SETUP_BIOS + write_rootdev (root_dev, boot_img, bl.first_sector); +#endif + + /* Round up to the nearest sector boundary, and zero the extra memory */ + core_img = xrealloc (core_img, nsec * GRUB_DISK_SECTOR_SIZE); + assert (core_img && (nsec * GRUB_DISK_SECTOR_SIZE >= core_size)); + memset (core_img + core_size, 0, nsec * GRUB_DISK_SECTOR_SIZE - core_size); + + bl.first_block = (struct grub_boot_blocklist *) (core_img + + GRUB_DISK_SECTOR_SIZE + - sizeof (*bl.block)); +#if GRUB_SETUP_BIOS + grub_size_t no_rs_length; + no_rs_length = grub_target_to_host16 + (grub_get_unaligned16 (core_img + + GRUB_DISK_SECTOR_SIZE + + GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_LENGTH)); + + if (no_rs_length == 0xffff) + grub_util_error ("%s", _("core.img version mismatch")); + + if (add_rs_codes) + { + grub_set_unaligned32 ((core_img + GRUB_DISK_SECTOR_SIZE + + GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY), + grub_host_to_target32 (nsec * GRUB_DISK_SECTOR_SIZE - core_size)); + + void *tmp = xmalloc (core_size); + grub_memcpy (tmp, core_img, core_size); + grub_reed_solomon_add_redundancy (core_img + no_rs_length + GRUB_DISK_SECTOR_SIZE, + core_size - no_rs_length - GRUB_DISK_SECTOR_SIZE, + nsec * GRUB_DISK_SECTOR_SIZE + - core_size); + assert (grub_memcmp (tmp, core_img, core_size) == 0); + free (tmp); + } + + /* Write the core image onto the disk. */ + for (i = 0; i < nsec; i++) + grub_disk_write (dest_dev->disk, sectors[i], 0, + GRUB_DISK_SECTOR_SIZE, + core_img + i * GRUB_DISK_SECTOR_SIZE); +#endif + +#ifdef GRUB_SETUP_SPARC64 + { + int isec = BOOT_SECTOR; + + /* Write the boot image onto the disk. */ + if (grub_disk_write (dest_dev->disk, sectors[isec++], 0, + GRUB_DISK_SECTOR_SIZE, boot_img)) + grub_util_error ("%s", grub_errmsg); + + /* Write the core image onto the disk. */ + for (i = 0 ; isec < nsec; i++, isec++) + { + if (grub_disk_write (dest_dev->disk, sectors[isec], 0, + GRUB_DISK_SECTOR_SIZE, + core_img + i * GRUB_DISK_SECTOR_SIZE)) + grub_util_error ("%s", grub_errmsg); + } + } + +#endif + grub_free (sectors); + + goto finish; + } + +unable_to_embed: + + if (dest_dev->disk->dev->id != root_dev->disk->dev->id) + grub_util_error ("%s", _("embedding is not possible, but this is required for " + "RAID and LVM install")); + + { + grub_fs_t fs; + fs = grub_fs_probe (root_dev); + if (!fs) + grub_util_error (_("can't determine filesystem on %s"), root); + + if (!fs->blocklist_install) + grub_util_error (_("filesystem `%s' doesn't support blocklists"), + fs->name); + } + +#ifdef GRUB_SETUP_BIOS + if (dest_dev->disk->id != root_dev->disk->id + || dest_dev->disk->dev->id != root_dev->disk->dev->id) + /* TRANSLATORS: cross-disk refers to /boot being on one disk + but MBR on another. */ + grub_util_error ("%s", _("embedding is not possible, but this is required for " + "cross-disk install")); +#else + core_dev = root_dev; +#endif + + grub_util_warn ("%s", _("Embedding is not possible. GRUB can only be installed in this " + "setup by using blocklists. However, blocklists are UNRELIABLE and " + "their use is discouraged.")); + if (! force) + /* TRANSLATORS: Here GRUB refuses to continue with blocklist install. */ + grub_util_error ("%s", _("will not proceed with blocklists")); + + /* The core image must be put on a filesystem unfortunately. */ + grub_util_info ("will leave the core image on the filesystem"); + + grub_util_biosdisk_flush (root_dev->disk); + + /* Clean out the blocklists. */ + bl.block = bl.first_block; + while (bl.block->len) + { + bl.block->start = 0; + bl.block->len = 0; +#ifdef GRUB_SETUP_BIOS + bl.block->segment = 0; +#endif + + bl.block--; + + if ((char *) bl.block <= core_img) + grub_util_error ("%s", _("no terminator in the core image")); + } + + bl.block = bl.first_block; + +#ifdef GRUB_SETUP_SPARC64 + { + grub_partition_t container = root_dev->disk->partition; + + if (grub_strstr (container->partmap->name, "gpt")) + bl.gpt_offset = grub_partition_get_start (container); + } +#endif + + grub_install_get_blocklist (root_dev, core_path, core_img, core_size, + save_blocklists, &bl); + + if (bl.first_sector == (grub_disk_addr_t)-1) + grub_util_error ("%s", _("can't retrieve blocklists")); + +#ifdef GRUB_SETUP_SPARC64 + { + char *boot_devpath; + boot_devpath = (char *) (boot_img + + GRUB_BOOT_AOUT_HEADER_SIZE + + GRUB_BOOT_MACHINE_BOOT_DEVPATH); + if (dest_dev->disk->id != root_dev->disk->id + || dest_dev->disk->dev->id != root_dev->disk->dev->id) + { + char *dest_ofpath; + dest_ofpath + = grub_util_devname_to_ofpath (grub_util_biosdisk_get_osdev (root_dev->disk)); + /* FIXME handle NULL result */ + grub_util_info ("dest_ofpath is `%s'", dest_ofpath); + strncpy (boot_devpath, dest_ofpath, + GRUB_BOOT_MACHINE_BOOT_DEVPATH_END + - GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1); + boot_devpath[GRUB_BOOT_MACHINE_BOOT_DEVPATH_END + - GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1] = 0; + free (dest_ofpath); + } + else + { + grub_util_info ("non cross-disk install"); + memset (boot_devpath, 0, GRUB_BOOT_MACHINE_BOOT_DEVPATH_END + - GRUB_BOOT_MACHINE_BOOT_DEVPATH); + } + grub_util_info ("boot device path %s", boot_devpath); + } +#endif + + write_rootdev (root_dev, boot_img, bl.first_sector); + + /* Write the first two sectors of the core image onto the disk. */ + grub_util_info ("opening the core image `%s'", core_path); + fp = grub_util_fd_open (core_path, GRUB_UTIL_FD_O_WRONLY); + if (! GRUB_UTIL_FD_IS_VALID (fp)) + grub_util_error (_("cannot open `%s': %s"), core_path, + grub_util_fd_strerror ()); + + if (grub_util_fd_write (fp, core_img, GRUB_DISK_SECTOR_SIZE * 2) + != GRUB_DISK_SECTOR_SIZE * 2) + grub_util_error (_("cannot write to `%s': %s"), + core_path, strerror (errno)); + if (grub_util_fd_sync (fp) < 0) + grub_util_error (_("cannot sync `%s': %s"), core_path, strerror (errno)); + if (grub_util_fd_close (fp) < 0) + grub_util_error (_("cannot close `%s': %s"), core_path, strerror (errno)); + grub_util_biosdisk_flush (root_dev->disk); + + grub_disk_cache_invalidate_all (); + + { + char *buf, *ptr = core_img; + size_t len = core_size; + grub_uint64_t blk, offset = 0; + grub_partition_t container = core_dev->disk->partition; + grub_err_t err; + + core_dev->disk->partition = 0; +#ifdef GRUB_SETUP_SPARC64 + offset = bl.gpt_offset; +#endif + + buf = xmalloc (core_size); + blk = bl.first_sector; + err = grub_disk_read (core_dev->disk, blk + offset, 0, GRUB_DISK_SECTOR_SIZE, buf); + if (err) + grub_util_error (_("cannot read `%s': %s"), core_dev->disk->name, + grub_errmsg); + if (grub_memcmp (buf, ptr, GRUB_DISK_SECTOR_SIZE) != 0) + grub_util_error ("%s", _("blocklists are invalid")); + + ptr += GRUB_DISK_SECTOR_SIZE; + len -= GRUB_DISK_SECTOR_SIZE; + + bl.block = bl.first_block; + while (bl.block->len) + { + size_t cur = grub_target_to_host16 (bl.block->len) << GRUB_DISK_SECTOR_BITS; + blk = grub_target_to_host64 (bl.block->start); + + if (cur > len) + cur = len; + + err = grub_disk_read (core_dev->disk, blk + offset, 0, cur, buf); + if (err) + grub_util_error (_("cannot read `%s': %s"), core_dev->disk->name, + grub_errmsg); + + if (grub_memcmp (buf, ptr, cur) != 0) + grub_util_error ("%s", _("blocklists are invalid")); + + ptr += cur; + len -= cur; + bl.block--; + + if ((char *) bl.block <= core_img) + grub_util_error ("%s", _("no terminator in the core image")); + } + if (len) + grub_util_error ("%s", _("blocklists are incomplete")); + core_dev->disk->partition = container; + free (buf); + } + +#ifdef GRUB_SETUP_BIOS + finish: +#endif + + /* Write the boot image onto the disk. */ + if (grub_disk_write (dest_dev->disk, BOOT_SECTOR, + 0, GRUB_DISK_SECTOR_SIZE, boot_img)) + grub_util_error ("%s", grub_errmsg); + +#ifdef GRUB_SETUP_SPARC64 + finish: +#endif + + grub_util_biosdisk_flush (root_dev->disk); + grub_util_biosdisk_flush (dest_dev->disk); + + free (core_path); + free (core_img); + free (boot_img); + grub_device_close (dest_dev); + grub_device_close (root_dev); +} + |