813 lines
23 KiB
C
813 lines
23 KiB
C
/* grub-setup.c - make GRUB usable */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <grub/types.h>
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#include <grub/util/misc.h>
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#include <grub/device.h>
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#include <grub/disk.h>
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#include <grub/file.h>
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#include <grub/fs.h>
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#include <grub/partition.h>
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#include <grub/msdos_partition.h>
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#include <grub/gpt_partition.h>
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#include <grub/env.h>
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#include <grub/util/hostdisk.h>
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#include <grub/machine/boot.h>
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#include <grub/machine/kernel.h>
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#include <grub/term.h>
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#include <grub/i18n.h>
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#include <grub/util/raid.h>
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#include <grub/util/lvm.h>
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#include <grub/util/getroot.h>
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static const grub_gpt_part_type_t grub_gpt_partition_type_bios_boot = GRUB_GPT_PARTITION_TYPE_BIOS_BOOT;
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#include <grub_setup_init.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <assert.h>
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#include "progname.h"
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#define _GNU_SOURCE 1
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#include <getopt.h>
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#define DEFAULT_BOOT_FILE "boot.img"
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#define DEFAULT_CORE_FILE "core.img"
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void
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grub_putchar (int c)
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{
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putchar (c);
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}
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int
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grub_getkey (void)
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{
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return -1;
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}
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struct grub_handler_class grub_term_input_class;
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struct grub_handler_class grub_term_output_class;
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void
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grub_refresh (void)
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{
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fflush (stdout);
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}
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static void
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setup (const char *dir,
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const char *boot_file, const char *core_file,
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const char *root, const char *dest, int must_embed, int force, int fs_probe)
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{
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char *boot_path, *core_path, *core_path_dev, *core_path_dev_full;
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char *boot_img, *core_img;
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size_t boot_size, core_size;
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grub_uint16_t core_sectors;
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grub_device_t root_dev, dest_dev;
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const char *dest_partmap;
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grub_uint8_t *boot_drive;
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grub_disk_addr_t *kernel_sector;
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grub_uint16_t *boot_drive_check;
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struct grub_boot_blocklist *first_block, *block;
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grub_int32_t *install_dos_part, *install_bsd_part;
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grub_int32_t dos_part, bsd_part;
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char *tmp_img;
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int i;
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grub_disk_addr_t first_sector;
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grub_uint16_t current_segment
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= GRUB_BOOT_MACHINE_KERNEL_SEG + (GRUB_DISK_SECTOR_SIZE >> 4);
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grub_uint16_t last_length = GRUB_DISK_SECTOR_SIZE;
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grub_file_t file;
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FILE *fp;
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struct { grub_uint64_t start; grub_uint64_t end; } embed_region;
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embed_region.start = embed_region.end = ~0UL;
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auto void NESTED_FUNC_ATTR save_first_sector (grub_disk_addr_t sector, unsigned offset,
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unsigned length);
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auto void NESTED_FUNC_ATTR save_blocklists (grub_disk_addr_t sector, unsigned offset,
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unsigned length);
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auto int NESTED_FUNC_ATTR find_usable_region_msdos (grub_disk_t disk,
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const grub_partition_t p);
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int NESTED_FUNC_ATTR find_usable_region_msdos (grub_disk_t disk __attribute__ ((unused)),
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const grub_partition_t p)
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{
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/* There's always an embed region, and it starts right after the MBR. */
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embed_region.start = 1;
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if (embed_region.end > p->start)
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embed_region.end = p->start;
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return 0;
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}
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auto int NESTED_FUNC_ATTR find_usable_region_gpt (grub_disk_t disk,
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const grub_partition_t p);
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int NESTED_FUNC_ATTR find_usable_region_gpt (grub_disk_t disk __attribute__ ((unused)),
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const grub_partition_t p)
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{
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struct grub_gpt_partentry *gptdata = p->data;
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/* If there's an embed region, it is in a dedicated partition. */
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if (! memcmp (&gptdata->type, &grub_gpt_partition_type_bios_boot, 16))
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{
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embed_region.start = p->start;
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embed_region.end = p->start + p->len;
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return 1;
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}
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return 0;
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}
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void NESTED_FUNC_ATTR save_first_sector (grub_disk_addr_t sector, unsigned offset,
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unsigned length)
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{
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grub_util_info ("the first sector is <%llu,%u,%u>",
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sector, offset, length);
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if (offset != 0 || length != GRUB_DISK_SECTOR_SIZE)
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grub_util_error (_("the first sector of the core file is not sector-aligned"));
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first_sector = sector;
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}
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void NESTED_FUNC_ATTR save_blocklists (grub_disk_addr_t sector, unsigned offset,
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unsigned length)
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{
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struct grub_boot_blocklist *prev = block + 1;
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grub_util_info ("saving <%llu,%u,%u> with the segment 0x%x",
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sector, offset, length, (unsigned) current_segment);
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if (offset != 0 || last_length != GRUB_DISK_SECTOR_SIZE)
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grub_util_error (_("non-sector-aligned data is found in the core file"));
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if (block != first_block
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&& (grub_le_to_cpu64 (prev->start)
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+ grub_le_to_cpu16 (prev->len)) == sector)
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prev->len = grub_cpu_to_le16 (grub_le_to_cpu16 (prev->len) + 1);
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else
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{
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block->start = grub_cpu_to_le64 (sector);
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block->len = grub_cpu_to_le16 (1);
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block->segment = grub_cpu_to_le16 (current_segment);
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block--;
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if (block->len)
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grub_util_error (_("the sectors of the core file are too fragmented"));
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}
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last_length = length;
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current_segment += GRUB_DISK_SECTOR_SIZE >> 4;
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}
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/* Read the boot image by the OS service. */
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boot_path = grub_util_get_path (dir, boot_file);
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boot_size = grub_util_get_image_size (boot_path);
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if (boot_size != GRUB_DISK_SECTOR_SIZE)
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grub_util_error (_("the size of `%s' is not %u"),
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boot_path, GRUB_DISK_SECTOR_SIZE);
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boot_img = grub_util_read_image (boot_path);
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free (boot_path);
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/* Set the addresses of variables in the boot image. */
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boot_drive = (grub_uint8_t *) (boot_img + GRUB_BOOT_MACHINE_BOOT_DRIVE);
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kernel_sector = (grub_disk_addr_t *) (boot_img
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+ GRUB_BOOT_MACHINE_KERNEL_SECTOR);
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boot_drive_check = (grub_uint16_t *) (boot_img
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+ GRUB_BOOT_MACHINE_DRIVE_CHECK);
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core_path = grub_util_get_path (dir, core_file);
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core_size = grub_util_get_image_size (core_path);
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core_sectors = ((core_size + GRUB_DISK_SECTOR_SIZE - 1)
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>> GRUB_DISK_SECTOR_BITS);
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if (core_size < GRUB_DISK_SECTOR_SIZE)
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grub_util_error (_("the size of `%s' is too small"), core_path);
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else if (core_size > 0xFFFF * GRUB_DISK_SECTOR_SIZE)
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grub_util_error (_("the size of `%s' is too large"), core_path);
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core_img = grub_util_read_image (core_path);
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/* Have FIRST_BLOCK to point to the first blocklist. */
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first_block = (struct grub_boot_blocklist *) (core_img
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+ GRUB_DISK_SECTOR_SIZE
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- sizeof (*block));
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install_dos_part = (grub_int32_t *) (core_img + GRUB_DISK_SECTOR_SIZE
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+ GRUB_KERNEL_MACHINE_INSTALL_DOS_PART);
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install_bsd_part = (grub_int32_t *) (core_img + GRUB_DISK_SECTOR_SIZE
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+ GRUB_KERNEL_MACHINE_INSTALL_BSD_PART);
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/* Open the root device and the destination device. */
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root_dev = grub_device_open (root);
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if (! root_dev)
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grub_util_error ("%s", grub_errmsg);
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dest_dev = grub_device_open (dest);
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if (! dest_dev)
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grub_util_error ("%s", grub_errmsg);
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grub_util_info ("setting the root device to `%s'", root);
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if (grub_env_set ("root", root) != GRUB_ERR_NONE)
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grub_util_error ("%s", grub_errmsg);
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/* Read the original sector from the disk. */
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tmp_img = xmalloc (GRUB_DISK_SECTOR_SIZE);
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if (grub_disk_read (dest_dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, tmp_img))
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grub_util_error ("%s", grub_errmsg);
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if (dest_dev->disk->partition && fs_probe)
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{
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grub_fs_t fs;
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fs = grub_fs_probe (dest_dev);
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if (! fs)
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grub_util_error (_("unable to identify a filesystem in %s; safety check can't be performed"),
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dest_dev->disk->name);
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if (! fs->reserved_first_sector)
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grub_util_error (_("%s appears to contain a %s filesystem which isn't known to "
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"reserve space for DOS-style boot. Installing GRUB there could "
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"result in FILESYSTEM DESTRUCTION if valuable data is overwritten "
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"by grub-setup (--skip-fs-probe disables this "
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"check, use at your own risk)"), dest_dev->disk->name, fs->name);
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}
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/* Copy the possible DOS BPB. */
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memcpy (boot_img + GRUB_BOOT_MACHINE_BPB_START,
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tmp_img + GRUB_BOOT_MACHINE_BPB_START,
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GRUB_BOOT_MACHINE_BPB_END - GRUB_BOOT_MACHINE_BPB_START);
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/* Copy the possible partition table. */
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if (dest_dev->disk->has_partitions)
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memcpy (boot_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
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tmp_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
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GRUB_BOOT_MACHINE_PART_END - GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC);
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free (tmp_img);
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/* If DEST_DRIVE is a hard disk, enable the workaround, which is
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for buggy BIOSes which don't pass boot drive correctly. Instead,
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they pass 0x00 or 0x01 even when booted from 0x80. */
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if (dest_dev->disk->id & 0x80)
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/* Replace the jmp (2 bytes) with double nop's. */
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*boot_drive_check = 0x9090;
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/* If we hardcoded drive as part of prefix, we don't want to
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override the current setting. */
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if (*install_dos_part != -2)
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{
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/* Embed information about the installed location. */
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if (root_dev->disk->partition)
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{
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if (root_dev->disk->partition->parent)
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{
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if (root_dev->disk->partition->parent->parent)
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grub_util_error ("Installing on doubly nested partitions is "
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"not supported");
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dos_part = root_dev->disk->partition->parent->number;
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bsd_part = root_dev->disk->partition->number;
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}
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else
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{
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dos_part = root_dev->disk->partition->number;
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bsd_part = -1;
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}
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}
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else
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dos_part = bsd_part = -1;
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}
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else
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{
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dos_part = grub_le_to_cpu32 (*install_dos_part);
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bsd_part = grub_le_to_cpu32 (*install_bsd_part);
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}
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grub_util_info ("dos partition is %d, bsd partition is %d",
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dos_part, bsd_part);
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if (! dest_dev->disk->has_partitions)
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{
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grub_util_warn (_("Attempting to install GRUB to a partitionless disk. This is a BAD idea."));
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goto unable_to_embed;
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}
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if (dest_dev->disk->partition)
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{
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grub_util_warn (_("Attempting to install GRUB to a partition instead of the MBR. This is a BAD idea."));
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goto unable_to_embed;
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}
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/* Unlike root_dev, with dest_dev we're interested in the partition map even
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if dest_dev itself is a whole disk. */
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auto int NESTED_FUNC_ATTR identify_partmap (grub_disk_t disk,
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const grub_partition_t p);
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int NESTED_FUNC_ATTR identify_partmap (grub_disk_t disk __attribute__ ((unused)),
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const grub_partition_t p)
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{
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if (p->parent)
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return 0;
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dest_partmap = p->partmap->name;
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return 1;
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}
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dest_partmap = 0;
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grub_partition_iterate (dest_dev->disk, identify_partmap);
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if (! dest_partmap)
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{
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grub_util_warn (_("Attempting to install GRUB to a partitionless disk. This is a BAD idea."));
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goto unable_to_embed;
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}
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if (strcmp (dest_partmap, "part_msdos") == 0)
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grub_partition_iterate (dest_dev->disk, find_usable_region_msdos);
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else if (strcmp (dest_partmap, "part_gpt") == 0)
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grub_partition_iterate (dest_dev->disk, find_usable_region_gpt);
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else
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grub_util_error (_("No DOS-style partitions found"));
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if (embed_region.end == embed_region.start)
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{
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if (! strcmp (dest_partmap, "part_msdos"))
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grub_util_warn (_("This msdos-style partition label has no post-MBR gap; embedding won't be possible!"));
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else
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grub_util_warn (_("This GPT partition label has no BIOS Boot Partition; embedding won't be possible!"));
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goto unable_to_embed;
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}
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if ((unsigned long) core_sectors > embed_region.end - embed_region.start)
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{
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if (core_sectors > 62)
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grub_util_warn (_("Your core.img is unusually large. It won't fit in the embedding area."));
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else /* embed_region.end - embed_region.start < 62 */
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grub_util_warn (_("Your embedding area is unusually small. core.img won't fit in it."));
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goto unable_to_embed;
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}
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grub_util_info ("the core image will be embedded at sector 0x%llx", embed_region.start);
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*install_dos_part = grub_cpu_to_le32 (dos_part);
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*install_bsd_part = grub_cpu_to_le32 (bsd_part);
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/* The first blocklist contains the whole sectors. */
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first_block->start = grub_cpu_to_le64 (embed_region.start + 1);
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/* These are filled elsewhere. Verify them just in case. */
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assert (first_block->len == grub_host_to_target16 (core_sectors - 1));
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assert (first_block->segment == grub_host_to_target16 (GRUB_BOOT_MACHINE_KERNEL_SEG
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+ (GRUB_DISK_SECTOR_SIZE >> 4)));
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/* Make sure that the second blocklist is a terminator. */
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block = first_block - 1;
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block->start = 0;
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block->len = 0;
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block->segment = 0;
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/* Write the core image onto the disk. */
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if (grub_disk_write (dest_dev->disk, embed_region.start, 0, core_size, core_img))
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grub_util_error ("%s", grub_errmsg);
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/* FIXME: can this be skipped? */
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*boot_drive = 0xFF;
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*kernel_sector = grub_cpu_to_le64 (embed_region.start);
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/* Write the boot image onto the disk. */
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if (grub_disk_write (dest_dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE,
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boot_img))
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grub_util_error ("%s", grub_errmsg);
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goto finish;
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unable_to_embed:
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if (must_embed)
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grub_util_error (_("embedding is not possible, but this is required when "
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"the root device is on a RAID array or LVM volume"));
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grub_util_warn (_("Embedding is not possible. GRUB can only be installed in this "
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"setup by using blocklists. However, blocklists are UNRELIABLE and "
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"its use is discouraged."));
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if (! force)
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grub_util_error (_("if you really want blocklists, use --force"));
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/* Make sure that GRUB reads the identical image as the OS. */
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tmp_img = xmalloc (core_size);
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core_path_dev_full = grub_util_get_path (dir, core_file);
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core_path_dev = make_system_path_relative_to_its_root (core_path_dev_full);
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free (core_path_dev_full);
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/* It is a Good Thing to sync two times. */
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sync ();
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sync ();
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#define MAX_TRIES 5
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for (i = 0; i < MAX_TRIES; i++)
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{
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grub_util_info ((i == 0) ? _("attempting to read the core image `%s' from GRUB")
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: _("attempting to read the core image `%s' from GRUB again"),
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core_path_dev);
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grub_disk_cache_invalidate_all ();
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file = grub_file_open (core_path_dev);
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if (file)
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{
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if (grub_file_size (file) != core_size)
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grub_util_info ("succeeded in opening the core image but the size is different (%d != %d)",
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(int) grub_file_size (file), (int) core_size);
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else if (grub_file_read (file, tmp_img, core_size)
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!= (grub_ssize_t) core_size)
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grub_util_info ("succeeded in opening the core image but cannot read %d bytes",
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(int) core_size);
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else if (memcmp (core_img, tmp_img, core_size) != 0)
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{
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#if 0
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FILE *dump;
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FILE *dump2;
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|
|
dump = fopen ("dump.img", "wb");
|
|
if (dump)
|
|
{
|
|
fwrite (tmp_img, 1, core_size, dump);
|
|
fclose (dump);
|
|
}
|
|
|
|
dump2 = fopen ("dump2.img", "wb");
|
|
if (dump2)
|
|
{
|
|
fwrite (core_img, 1, core_size, dump2);
|
|
fclose (dump2);
|
|
}
|
|
|
|
#endif
|
|
grub_util_info ("succeeded in opening the core image but the data is different");
|
|
}
|
|
else
|
|
{
|
|
grub_file_close (file);
|
|
break;
|
|
}
|
|
|
|
grub_file_close (file);
|
|
}
|
|
else
|
|
grub_util_info ("couldn't open the core image");
|
|
|
|
if (grub_errno)
|
|
grub_util_info ("error message = %s", grub_errmsg);
|
|
|
|
grub_errno = GRUB_ERR_NONE;
|
|
sync ();
|
|
sleep (1);
|
|
}
|
|
|
|
if (i == MAX_TRIES)
|
|
grub_util_error (_("cannot read `%s' correctly"), core_path_dev);
|
|
|
|
/* Clean out the blocklists. */
|
|
block = first_block;
|
|
while (block->len)
|
|
{
|
|
block->start = 0;
|
|
block->len = 0;
|
|
block->segment = 0;
|
|
|
|
block--;
|
|
|
|
if ((char *) block <= core_img)
|
|
grub_util_error (_("no terminator in the core image"));
|
|
}
|
|
|
|
/* Now read the core image to determine where the sectors are. */
|
|
file = grub_file_open (core_path_dev);
|
|
if (! file)
|
|
grub_util_error ("%s", grub_errmsg);
|
|
|
|
file->read_hook = save_first_sector;
|
|
if (grub_file_read (file, tmp_img, GRUB_DISK_SECTOR_SIZE)
|
|
!= GRUB_DISK_SECTOR_SIZE)
|
|
grub_util_error (_("failed to read the first sector of the core image"));
|
|
|
|
block = first_block;
|
|
file->read_hook = save_blocklists;
|
|
if (grub_file_read (file, tmp_img, core_size - GRUB_DISK_SECTOR_SIZE)
|
|
!= (grub_ssize_t) core_size - GRUB_DISK_SECTOR_SIZE)
|
|
grub_util_error (_("failed to read the rest sectors of the core image"));
|
|
|
|
grub_file_close (file);
|
|
|
|
free (core_path_dev);
|
|
free (tmp_img);
|
|
|
|
*kernel_sector = grub_cpu_to_le64 (first_sector);
|
|
|
|
/* FIXME: can this be skipped? */
|
|
*boot_drive = 0xFF;
|
|
|
|
*install_dos_part = grub_cpu_to_le32 (dos_part);
|
|
*install_bsd_part = grub_cpu_to_le32 (bsd_part);
|
|
|
|
/* Write the first two sectors of the core image onto the disk. */
|
|
grub_util_info ("opening the core image `%s'", core_path);
|
|
fp = fopen (core_path, "r+b");
|
|
if (! fp)
|
|
grub_util_error (_("cannot open `%s'"), core_path);
|
|
|
|
grub_util_write_image (core_img, GRUB_DISK_SECTOR_SIZE * 2, fp);
|
|
fclose (fp);
|
|
|
|
/* Write the boot image onto the disk. */
|
|
if (grub_disk_write (dest_dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, boot_img))
|
|
grub_util_error ("%s", grub_errmsg);
|
|
|
|
finish:
|
|
|
|
/* Sync is a Good Thing. */
|
|
sync ();
|
|
|
|
free (core_path);
|
|
free (core_img);
|
|
free (boot_img);
|
|
grub_device_close (dest_dev);
|
|
grub_device_close (root_dev);
|
|
}
|
|
|
|
static struct option options[] =
|
|
{
|
|
{"boot-image", required_argument, 0, 'b'},
|
|
{"core-image", required_argument, 0, 'c'},
|
|
{"directory", required_argument, 0, 'd'},
|
|
{"device-map", required_argument, 0, 'm'},
|
|
{"root-device", required_argument, 0, 'r'},
|
|
{"force", no_argument, 0, 'f'},
|
|
{"skip-fs-probe", no_argument, 0, 's'},
|
|
{"help", no_argument, 0, 'h'},
|
|
{"version", no_argument, 0, 'V'},
|
|
{"verbose", no_argument, 0, 'v'},
|
|
{0, 0, 0, 0}
|
|
};
|
|
|
|
static void
|
|
usage (int status)
|
|
{
|
|
if (status)
|
|
fprintf (stderr, _("Try `%s --help' for more information.\n"), program_name);
|
|
else
|
|
printf (_("\
|
|
Usage: %s [OPTION]... DEVICE\n\
|
|
\n\
|
|
Set up images to boot from DEVICE.\n\
|
|
DEVICE must be a GRUB device (e.g. `(hd0,1)').\n\
|
|
\n\
|
|
-b, --boot-image=FILE use FILE as the boot image [default=%s]\n\
|
|
-c, --core-image=FILE use FILE as the core image [default=%s]\n\
|
|
-d, --directory=DIR use GRUB files in the directory DIR [default=%s]\n\
|
|
-m, --device-map=FILE use FILE as the device map [default=%s]\n\
|
|
-r, --root-device=DEV use DEV as the root device [default=guessed]\n\
|
|
-f, --force install even if problems are detected\n\
|
|
-s, --skip-fs-probe do not probe for filesystems in DEVICE\n\
|
|
-h, --help display this message and exit\n\
|
|
-V, --version print version information and exit\n\
|
|
-v, --verbose print verbose messages\n\
|
|
\n\
|
|
Report bugs to <%s>.\n\
|
|
"),
|
|
program_name,
|
|
DEFAULT_BOOT_FILE, DEFAULT_CORE_FILE, DEFAULT_DIRECTORY,
|
|
DEFAULT_DEVICE_MAP, PACKAGE_BUGREPORT);
|
|
|
|
exit (status);
|
|
}
|
|
|
|
static char *
|
|
get_device_name (char *dev)
|
|
{
|
|
size_t len = strlen (dev);
|
|
|
|
if (dev[0] != '(' || dev[len - 1] != ')')
|
|
return 0;
|
|
|
|
dev[len - 1] = '\0';
|
|
return dev + 1;
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
char *boot_file = 0;
|
|
char *core_file = 0;
|
|
char *dir = 0;
|
|
char *dev_map = 0;
|
|
char *root_dev = 0;
|
|
char *dest_dev;
|
|
int must_embed = 0, force = 0, fs_probe = 1;
|
|
|
|
set_program_name (argv[0]);
|
|
|
|
grub_util_init_nls ();
|
|
|
|
/* Check for options. */
|
|
while (1)
|
|
{
|
|
int c = getopt_long (argc, argv, "b:c:d:m:r:hVvf", options, 0);
|
|
|
|
if (c == -1)
|
|
break;
|
|
else
|
|
switch (c)
|
|
{
|
|
case 'b':
|
|
if (boot_file)
|
|
free (boot_file);
|
|
|
|
boot_file = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'c':
|
|
if (core_file)
|
|
free (core_file);
|
|
|
|
core_file = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'd':
|
|
if (dir)
|
|
free (dir);
|
|
|
|
dir = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'm':
|
|
if (dev_map)
|
|
free (dev_map);
|
|
|
|
dev_map = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'r':
|
|
if (root_dev)
|
|
free (root_dev);
|
|
|
|
root_dev = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'f':
|
|
force = 1;
|
|
break;
|
|
|
|
case 's':
|
|
fs_probe = 0;
|
|
break;
|
|
|
|
case 'h':
|
|
usage (0);
|
|
break;
|
|
|
|
case 'V':
|
|
printf ("grub-setup (%s) %s\n", PACKAGE_NAME, PACKAGE_VERSION);
|
|
return 0;
|
|
|
|
case 'v':
|
|
verbosity++;
|
|
break;
|
|
|
|
default:
|
|
usage (1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (verbosity > 1)
|
|
grub_env_set ("debug", "all");
|
|
|
|
/* Obtain DEST_DEV. */
|
|
if (optind >= argc)
|
|
{
|
|
fprintf (stderr, _("No device is specified.\n"));
|
|
usage (1);
|
|
}
|
|
|
|
if (optind + 1 != argc)
|
|
{
|
|
fprintf (stderr, _("Unknown extra argument `%s'.\n"), argv[optind + 1]);
|
|
usage (1);
|
|
}
|
|
|
|
/* Initialize the emulated biosdisk driver. */
|
|
grub_util_biosdisk_init (dev_map ? : DEFAULT_DEVICE_MAP);
|
|
|
|
/* Initialize all modules. */
|
|
grub_init_all ();
|
|
|
|
dest_dev = get_device_name (argv[optind]);
|
|
if (! dest_dev)
|
|
{
|
|
/* Possibly, the user specified an OS device file. */
|
|
dest_dev = grub_util_get_grub_dev (argv[optind]);
|
|
if (! dest_dev)
|
|
{
|
|
fprintf (stderr, _("Invalid device `%s'.\n"), argv[optind]);
|
|
usage (1);
|
|
}
|
|
}
|
|
else
|
|
/* For simplicity. */
|
|
dest_dev = xstrdup (dest_dev);
|
|
|
|
if (root_dev)
|
|
{
|
|
char *tmp = get_device_name (root_dev);
|
|
|
|
if (! tmp)
|
|
grub_util_error (_("invalid root device `%s'"), root_dev);
|
|
|
|
tmp = xstrdup (tmp);
|
|
free (root_dev);
|
|
root_dev = tmp;
|
|
}
|
|
else
|
|
{
|
|
root_dev = grub_util_get_grub_dev (grub_guess_root_device (dir ? : DEFAULT_DIRECTORY));
|
|
if (! root_dev)
|
|
{
|
|
grub_util_info ("guessing the root device failed, because of `%s'",
|
|
grub_errmsg);
|
|
grub_util_error (_("cannot guess the root device. Specify the option `--root-device'"));
|
|
}
|
|
}
|
|
|
|
#ifdef __linux__
|
|
if (grub_util_lvm_isvolume (root_dev))
|
|
must_embed = 1;
|
|
|
|
if (root_dev[0] == 'm' && root_dev[1] == 'd'
|
|
&& root_dev[2] >= '0' && root_dev[2] <= '9')
|
|
{
|
|
/* FIXME: we can avoid this on RAID1. */
|
|
must_embed = 1;
|
|
}
|
|
|
|
if (dest_dev[0] == 'm' && dest_dev[1] == 'd'
|
|
&& dest_dev[2] >= '0' && dest_dev[2] <= '9')
|
|
{
|
|
char **devicelist;
|
|
int i;
|
|
|
|
devicelist = grub_util_raid_getmembers (dest_dev);
|
|
|
|
for (i = 0; devicelist[i]; i++)
|
|
{
|
|
setup (dir ? : DEFAULT_DIRECTORY,
|
|
boot_file ? : DEFAULT_BOOT_FILE,
|
|
core_file ? : DEFAULT_CORE_FILE,
|
|
root_dev, grub_util_get_grub_dev (devicelist[i]), 1, force, fs_probe);
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
/* Do the real work. */
|
|
setup (dir ? : DEFAULT_DIRECTORY,
|
|
boot_file ? : DEFAULT_BOOT_FILE,
|
|
core_file ? : DEFAULT_CORE_FILE,
|
|
root_dev, dest_dev, must_embed, force, fs_probe);
|
|
|
|
/* Free resources. */
|
|
grub_fini_all ();
|
|
grub_util_biosdisk_fini ();
|
|
|
|
free (boot_file);
|
|
free (core_file);
|
|
free (dir);
|
|
free (dev_map);
|
|
free (root_dev);
|
|
free (dest_dev);
|
|
|
|
return 0;
|
|
}
|