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Defer multiboot device parsing until we're in compressed part.

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* grub-core/boot/i386/pc/lnxboot.S: Remove setting dos_part and
	bsd_part. setdevice has fallen into disuse.
	* grub-core/boot/i386/pc/startup_raw.S (dos_part): Removed.
	(bsd_part): Likewise.
	(boot_dev): New variable.
	(multiboot_trampoline): Don't parse multiboot device.
	Pass multiboot device in %edx.
	* grub-core/disk/i386/pc/biosdisk.c (GRUB_MOD_INIT): Parse
	grub_boot_device.
	* grub-core/kern/i386/pc/init.c (grub_machine_get_bootlocation):
	Likewise.
	* grub-core/kern/i386/pc/startup.S: Save edx.
	(grub_boot_drive): Removed.
	(grub_install_dos_part): Likewise.
	(grub_install_bsd_part): Likewise.
	(grub_boot_device): New variable.
	* include/grub/i386/pc/kernel.h (grub_install_dos_part): Removed.
	(grub_install_bsd_part): Likewise.
	(grub_boot_drive): Likewise.
	(grub_boot_device): New variable.
	* include/grub/offsets.h (GRUB_KERNEL_I386_PC_INSTALL_DOS_PART):
	Removed.
	(GRUB_KERNEL_I386_PC_INSTALL_BSD_PART): Likewise.
	(GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY): Moved lower.
	(GRUB_KERNEL_MACHINE_INSTALL_BSD_PART): Removed.
	(GRUB_KERNEL_MACHINE_INSTALL_DOS_PART): Likewise.
	* util/grub-install.in: Remove redundant condition.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-11-12 21:12:52 +01:00
parent 691cbb5816
commit 5fbdac149b
11 changed files with 63 additions and 171 deletions
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44
util/grub-setup.c
View file

@ -101,56 +101,12 @@ write_rootdev (char *core_img, grub_device_t root_dev,
{
#ifdef GRUB_MACHINE_PCBIOS
{
grub_int32_t *install_dos_part, *install_bsd_part;
grub_int32_t dos_part, bsd_part;
grub_uint8_t *boot_drive;
grub_disk_addr_t *kernel_sector;
boot_drive = (grub_uint8_t *) (boot_img + GRUB_BOOT_MACHINE_BOOT_DRIVE);
kernel_sector = (grub_disk_addr_t *) (boot_img
+ GRUB_BOOT_MACHINE_KERNEL_SECTOR);
install_dos_part = (grub_int32_t *) (core_img + GRUB_DISK_SECTOR_SIZE
+ GRUB_KERNEL_MACHINE_INSTALL_DOS_PART);
install_bsd_part = (grub_int32_t *) (core_img + GRUB_DISK_SECTOR_SIZE
+ GRUB_KERNEL_MACHINE_INSTALL_BSD_PART);
/* If we hardcoded drive as part of prefix, we don't want to
override the current setting. */
if (*install_dos_part != -2)
{
/* Embed information about the installed location. */
if (root_dev->disk->partition)
{
if (root_dev->disk->partition->parent)
{
if (root_dev->disk->partition->parent->parent)
grub_util_error (_("Installing on doubly nested partitions "
"is not supported"));
dos_part = root_dev->disk->partition->parent->number;
bsd_part = root_dev->disk->partition->number;
}
else
{
dos_part = root_dev->disk->partition->number;
bsd_part = -1;
}
}
else
dos_part = bsd_part = -1;
}
else
{
dos_part = grub_le_to_cpu32 (*install_dos_part);
bsd_part = grub_le_to_cpu32 (*install_bsd_part);
}
grub_util_info ("dos partition is %d, bsd partition is %d",
dos_part, bsd_part);
*install_dos_part = grub_cpu_to_le32 (dos_part);
*install_bsd_part = grub_cpu_to_le32 (bsd_part);
/* FIXME: can this be skipped? */
*boot_drive = 0xFF;