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-rw-r--r--util/setup.c877
1 files changed, 877 insertions, 0 deletions
diff --git a/util/setup.c b/util/setup.c
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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, &sectors);
+ else if (ctx.dest_partmap)
+ err = ctx.dest_partmap->embed (dest_dev->disk, &nsec, maxsec,
+ GRUB_EMBED_PCBIOS, &sectors, warn_small);
+ else
+ err = fs->fs_embed (dest_dev, &nsec, maxsec,
+ GRUB_EMBED_PCBIOS, &sectors);
+ 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);
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 21:06:09 +0000