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merge mainline into ahci

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-05-18 12:36:26 +02:00
commit 548937c6d6
70 changed files with 2735 additions and 287 deletions
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44
util/grub-fstest.c
View file

@ -54,12 +54,15 @@ execute_command (char *name, int n, char **args)
return (cmd->func) (cmd, n, args);
}
#define CMD_LS 1
#define CMD_CP 2
#define CMD_CMP 3
#define CMD_HEX 4
#define CMD_CRC 6
#define CMD_BLOCKLIST 7
enum {
CMD_LS = 1,
CMD_CP,
CMD_CAT,
CMD_CMP,
CMD_HEX,
CMD_CRC,
CMD_BLOCKLIST
};
#define BUF_SIZE 32256
@ -182,6 +185,26 @@ cmd_cp (char *src, char *dest)
fclose (ff);
}
static void
cmd_cat (char *src)
{
auto int cat_hook (grub_off_t ofs, char *buf, int len);
int cat_hook (grub_off_t ofs, char *buf, int len)
{
(void) ofs;
if ((int) fwrite (buf, 1, len, stdout) != len)
{
grub_util_error (_("write error"));
return 1;
}
return 0;
}
read_file (src, cat_hook);
}
static void
cmd_cmp (char *src, char *dest)
{
@ -321,6 +344,9 @@ fstest (int n, char **args)
case CMD_CP:
cmd_cp (args[0], args[1]);
break;
case CMD_CAT:
cmd_cat (args[0]);
break;
case CMD_CMP:
cmd_cmp (args[0], args[1]);
break;
@ -356,6 +382,7 @@ static struct argp_option options[] = {
{0, 0, 0 , OPTION_DOC, N_("Commands:"), 1},
{N_("ls PATH"), 0, 0 , OPTION_DOC, N_("List files in PATH."), 1},
{N_("cp FILE LOCAL"), 0, 0, OPTION_DOC, N_("Copy FILE to local file LOCAL."), 1},
{N_("cat FILE"), 0, 0 , OPTION_DOC, N_("Copy FILE to standard output."), 1},
{N_("cmp FILE LOCAL"), 0, 0, OPTION_DOC, N_("Compare FILE with local file LOCAL."), 1},
{N_("hex FILE"), 0, 0 , OPTION_DOC, N_("Hex dump FILE."), 1},
{N_("crc FILE"), 0, 0 , OPTION_DOC, N_("Get crc32 checksum of FILE."), 1},
@ -468,6 +495,11 @@ argp_parser (int key, char *arg, struct argp_state *state)
cmd = CMD_CP;
nparm = 2;
}
else if (!grub_strcmp (arg, "cat"))
{
cmd = CMD_CAT;
nparm = 1;
}
else if (!grub_strcmp (arg, "cmp"))
{
cmd = CMD_CMP;

9
util/grub-install.in
View file

@ -562,13 +562,13 @@ fi
case "${target_cpu}-${platform}" in
sparc64-ieee1275) mkimage_target=sparc64-ieee1275-raw ;;
mips-loongson) mkimage_target=mipsel-loongson-elf ;;
mipsel-loongson) mkimage_target=mipsel-loongson-elf ;;
*) mkimage_target="${target_cpu}-${platform}" ;;
esac
case "${target_cpu}-${platform}" in
i386-efi | x86_64-efi) imgext=efi ;;
mips-loongson | i386-coreboot | i386-multiboot | i386-ieee1275 \
mipsel-loongson | i386-coreboot | i386-multiboot | i386-ieee1275 \
| powerpc-ieee1275) imgext=elf ;;
*) imgext=img ;;
esac
@ -577,7 +577,7 @@ esac
"$grub_mkimage" ${config_opt} -d "${pkglibdir}" -O ${mkimage_target} --output="${grubdir}/core.${imgext}" --prefix="${prefix_drive}${relative_grubdir}" $modules || exit 1
# Backward-compatibility kludges
if [ "${target_cpu}-${platform}" = "mips-loongson" ]; then
if [ "${target_cpu}-${platform}" = "mipsel-loongson" ]; then
cp "${grubdir}/core.${imgext}" "${bootdir}"/grub.elf
elif [ "${target_cpu}-${platform}" = "i386-ieee1275" ] || [ "${target_cpu}-${platform}" = "powerpc-ieee1275" ]; then
cp "${grubdir}/core.${imgext}" "${grubdir}/grub"
@ -627,6 +627,9 @@ elif [ "${target_cpu}-${platform}" = "i386-ieee1275" ] || [ "${target_cpu}-${pla
exit 1
}
fi
elif [ x"${target_cpu}-${platform}" = xmips-arc ]; then
dvhtool -d "${install_device}" --unix-to-vh "{grubdir}/core.${imgext}" grub
echo "You will have to set SystemPartition and OSLoader manually."
elif [ x"$platform" = xefi ]; then
cp "${grubdir}/core.${imgext}" "${efidir}/${efi_file}"
# For old macs. Suggested by Peter Jones.

223
util/grub-mkimage.c
View file

@ -67,13 +67,14 @@ struct image_target_desc
IMAGE_I386_PC, IMAGE_EFI, IMAGE_COREBOOT,
IMAGE_SPARC64_AOUT, IMAGE_SPARC64_RAW, IMAGE_I386_IEEE1275,
IMAGE_LOONGSON_ELF, IMAGE_QEMU, IMAGE_PPC, IMAGE_YEELOONG_FLASH,
IMAGE_FULOONG_FLASH, IMAGE_I386_PC_PXE
IMAGE_FULOONG_FLASH, IMAGE_I386_PC_PXE, IMAGE_MIPS_ARC
} id;
enum
{
PLATFORM_FLAGS_NONE = 0,
PLATFORM_FLAGS_LZMA = 1,
PLATFORM_FLAGS_DECOMPRESSORS = 2
PLATFORM_FLAGS_DECOMPRESSORS = 2,
PLATFORM_FLAGS_MODULES_BEFORE_KERNEL = 4,
} flags;
unsigned prefix;
unsigned prefix_end;
@ -273,7 +274,7 @@ struct image_target_desc image_targets[] =
.elf_target = EM_X86_64,
},
{
.dirname = "mips-loongson",
.dirname = "mipsel-loongson",
.names = { "mipsel-yeeloong-flash", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
@ -295,7 +296,7 @@ struct image_target_desc image_targets[] =
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mips-loongson",
.dirname = "mipsel-loongson",
.names = { "mipsel-fuloong-flash", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
@ -317,7 +318,7 @@ struct image_target_desc image_targets[] =
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mips-loongson",
.dirname = "mipsel-loongson",
.names = { "mipsel-loongson-elf", "mipsel-yeeloong-elf",
"mipsel-fuloong-elf", NULL },
.voidp_sizeof = 4,
@ -420,6 +421,73 @@ struct image_target_desc image_targets[] =
.pe_target = GRUB_PE32_MACHINE_IA64,
.elf_target = EM_IA_64,
},
{
.dirname = "mips-arc",
.names = {"mips-arc", NULL},
.voidp_sizeof = 4,
.bigendian = 1,
.id = IMAGE_MIPS_ARC,
.flags = (PLATFORM_FLAGS_DECOMPRESSORS
| PLATFORM_FLAGS_MODULES_BEFORE_KERNEL),
.prefix = GRUB_KERNEL_MIPS_ARC_PREFIX,
.prefix_end = GRUB_KERNEL_MIPS_ARC_PREFIX_END,
.raw_size = 0,
.total_module_size = GRUB_KERNEL_MIPS_ARC_TOTAL_MODULE_SIZE,
.compressed_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_MIPS_ARC_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_ARC_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mipsel-qemu_mips",
.names = { "mipsel-qemu_mips-elf", NULL },
.voidp_sizeof = 4,
.bigendian = 0,
.id = IMAGE_LOONGSON_ELF,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.prefix = GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX,
.prefix_end = GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX_END,
.raw_size = 0,
.total_module_size = GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE,
.compressed_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
{
.dirname = "mips-qemu_mips",
.names = { "mips-qemu_mips-elf", NULL },
.voidp_sizeof = 4,
.bigendian = 1,
.id = IMAGE_LOONGSON_ELF,
.flags = PLATFORM_FLAGS_DECOMPRESSORS,
.prefix = GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX,
.prefix_end = GRUB_KERNEL_MIPS_QEMU_MIPS_PREFIX_END,
.raw_size = 0,
.total_module_size = GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE,
.compressed_size = TARGET_NO_FIELD,
.kernel_image_size = TARGET_NO_FIELD,
.section_align = 1,
.vaddr_offset = 0,
.install_dos_part = TARGET_NO_FIELD,
.install_bsd_part = TARGET_NO_FIELD,
.link_addr = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ADDR,
.elf_target = EM_MIPS,
.link_align = GRUB_KERNEL_MIPS_QEMU_MIPS_LINK_ALIGN,
.default_compression = COMPRESSION_NONE
},
};
#define grub_target_to_host32(x) (grub_target_to_host32_real (image_target, (x)))
@ -690,6 +758,7 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
grub_uint64_t start_address;
void *rel_section;
grub_size_t reloc_size, align;
size_t decompress_size;
if (comp == COMPRESSION_AUTO)
comp = image_target->default_compression;
@ -737,27 +806,47 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
grub_util_error (_("prefix is too long"));
strcpy (kernel_img + image_target->prefix, prefix);
if ((image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
&& (image_target->total_module_size != TARGET_NO_FIELD))
*((grub_uint32_t *) (kernel_img + image_target->total_module_size))
= grub_host_to_target32 (total_module_size);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
memmove (kernel_img + total_module_size, kernel_img, kernel_size);
if (image_target->voidp_sizeof == 8)
{
/* Fill in the grub_module_info structure. */
struct grub_module_info64 *modinfo;
modinfo = (struct grub_module_info64 *) (kernel_img + kernel_size);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
modinfo = (struct grub_module_info64 *) kernel_img;
else
modinfo = (struct grub_module_info64 *) (kernel_img + kernel_size);
memset (modinfo, 0, sizeof (struct grub_module_info64));
modinfo->magic = grub_host_to_target32 (GRUB_MODULE_MAGIC);
modinfo->offset = grub_host_to_target_addr (sizeof (struct grub_module_info64));
modinfo->size = grub_host_to_target_addr (total_module_size);
offset = kernel_size + sizeof (struct grub_module_info64);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
offset = sizeof (struct grub_module_info64);
else
offset = kernel_size + sizeof (struct grub_module_info64);
}
else
{
/* Fill in the grub_module_info structure. */
struct grub_module_info32 *modinfo;
modinfo = (struct grub_module_info32 *) (kernel_img + kernel_size);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
modinfo = (struct grub_module_info32 *) kernel_img;
else
modinfo = (struct grub_module_info32 *) (kernel_img + kernel_size);
memset (modinfo, 0, sizeof (struct grub_module_info32));
modinfo->magic = grub_host_to_target32 (GRUB_MODULE_MAGIC);
modinfo->offset = grub_host_to_target_addr (sizeof (struct grub_module_info32));
modinfo->size = grub_host_to_target_addr (total_module_size);
offset = kernel_size + sizeof (struct grub_module_info32);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
offset = sizeof (struct grub_module_info32);
else
offset = kernel_size + sizeof (struct grub_module_info32);
}
for (p = path_list; p; p = p->next)
@ -808,26 +897,27 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
offset += config_size;
}
if ((image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
&& (image_target->total_module_size != TARGET_NO_FIELD))
*((grub_uint32_t *) (kernel_img + image_target->total_module_size))
= grub_host_to_target32 (total_module_size);
grub_util_info ("kernel_img=%p, kernel_size=0x%x", kernel_img, kernel_size);
compress_kernel (image_target, kernel_img, kernel_size + total_module_size,
&core_img, &core_size, comp);
free (kernel_img);
if (image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
kernel_img = core_img + total_module_size;
else
kernel_img = core_img;
grub_util_info ("the core size is 0x%x", core_size);
if (!(image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
&& image_target->total_module_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (core_img + image_target->total_module_size))
*((grub_uint32_t *) (kernel_img + image_target->total_module_size))
= grub_host_to_target32 (total_module_size);
if (image_target->kernel_image_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (core_img + image_target->kernel_image_size))
*((grub_uint32_t *) (kernel_img + image_target->kernel_image_size))
= grub_host_to_target32 (kernel_size);
if (image_target->compressed_size != TARGET_NO_FIELD)
*((grub_uint32_t *) (core_img + image_target->compressed_size))
*((grub_uint32_t *) (kernel_img + image_target->compressed_size))
= grub_host_to_target32 (core_size - image_target->raw_size);
/* If we included a drive in our prefix, let GRUB know it doesn't have to
@ -835,9 +925,9 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
if (image_target->install_dos_part != TARGET_NO_FIELD
&& image_target->install_bsd_part != TARGET_NO_FIELD && prefix[0] == '(')
{
*((grub_int32_t *) (core_img + image_target->install_dos_part))
*((grub_int32_t *) (kernel_img + image_target->install_dos_part))
= grub_host_to_target32 (-2);
*((grub_int32_t *) (core_img + image_target->install_bsd_part))
*((grub_int32_t *) (kernel_img + image_target->install_bsd_part))
= grub_host_to_target32 (-2);
}
@ -846,7 +936,6 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
char *full_img;
size_t full_size;
char *decompress_path, *decompress_img;
size_t decompress_size;
const char *name;
switch (comp)
@ -871,6 +960,13 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
*((grub_uint32_t *) (decompress_img + GRUB_KERNEL_MIPS_LOONGSON_UNCOMPRESSED_SIZE))
= grub_host_to_target32 (kernel_size + total_module_size);
if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
*((grub_uint32_t *) (decompress_img + GRUB_KERNEL_MIPS_LOONGSON_UNCOMPRESSED_ADDR))
= grub_host_to_target_addr (image_target->link_addr - total_module_size);
else
*((grub_uint32_t *) (decompress_img + GRUB_KERNEL_MIPS_LOONGSON_UNCOMPRESSED_ADDR))
= grub_host_to_target_addr (image_target->link_addr);
full_size = core_size + decompress_size;
full_img = xmalloc (full_size);
@ -1155,7 +1251,7 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
rom_img = xmalloc (rom_size);
memset (rom_img, 0, rom_size);
*((grub_int32_t *) (core_img + GRUB_KERNEL_I386_QEMU_CORE_ENTRY_ADDR))
*((grub_int32_t *) (kernel_img + GRUB_KERNEL_I386_QEMU_CORE_ENTRY_ADDR))
= grub_host_to_target32 ((grub_uint32_t) -rom_size);
memcpy (rom_img, core_img, core_size);
@ -1293,6 +1389,81 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
core_size = rom_size;
}
break;
case IMAGE_MIPS_ARC:
{
char *ecoff_img;
struct ecoff_header {
grub_uint16_t magic;
grub_uint16_t nsec;
grub_uint32_t time;
grub_uint32_t syms;
grub_uint32_t nsyms;
grub_uint16_t opt;
grub_uint16_t flags;
grub_uint16_t magic2;
grub_uint16_t version;
grub_uint32_t textsize;
grub_uint32_t datasize;
grub_uint32_t bsssize;
grub_uint32_t entry;
grub_uint32_t text_start;
grub_uint32_t data_start;
grub_uint32_t bss_start;
grub_uint32_t gprmask;
grub_uint32_t cprmask[4];
grub_uint32_t gp_value;
};
struct ecoff_section
{
char name[8];
grub_uint32_t paddr;
grub_uint32_t vaddr;
grub_uint32_t size;
grub_uint32_t file_offset;
grub_uint32_t reloc;
grub_uint32_t gp;
grub_uint16_t nreloc;
grub_uint16_t ngp;
grub_uint32_t flags;
};
struct ecoff_header *head;
struct ecoff_section *section;
grub_uint32_t target_addr;
size_t program_size;
program_size = ALIGN_ADDR (core_size);
if (comp == COMPRESSION_NONE)
target_addr = (image_target->link_addr
- total_module_size - decompress_size);
else
target_addr = (image_target->link_addr
- ALIGN_UP(total_module_size + core_size, 1048576)
- (1 << 20));
ecoff_img = xmalloc (program_size + sizeof (*head) + sizeof (*section));
grub_memset (ecoff_img, 0, program_size + sizeof (*head) + sizeof (*section));
head = (void *) ecoff_img;
section = (void *) (head + 1);
head->magic = grub_host_to_target16 (0x160);
head->nsec = grub_host_to_target16 (1);
head->time = grub_host_to_target32 (0);
head->opt = grub_host_to_target16 (0x38);
head->flags = grub_host_to_target16 (0x207);
head->magic2 = grub_host_to_target16 (0x107);
head->textsize = grub_host_to_target32 (program_size);
head->entry = grub_host_to_target32 (target_addr);
head->text_start = grub_host_to_target32 (target_addr);
head->data_start = grub_host_to_target32 (target_addr + program_size);
grub_memcpy (section->name, ".text", sizeof (".text") - 1);
section->vaddr = grub_host_to_target32 (target_addr);
section->size = grub_host_to_target32 (program_size);
section->file_offset = grub_host_to_target32 (sizeof (*head) + sizeof (*section));
memcpy (section + 1, core_img, core_size);
free (core_img);
core_img = ecoff_img;
core_size = program_size + sizeof (*head) + sizeof (*section);
}
break;
case IMAGE_LOONGSON_ELF:
case IMAGE_PPC:
case IMAGE_COREBOOT:
@ -1355,8 +1526,13 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
if (image_target->id == IMAGE_LOONGSON_ELF)
target_addr = ALIGN_UP (image_target->link_addr
+ kernel_size + total_module_size, 32);
{
if (comp == COMPRESSION_NONE)
target_addr = (image_target->link_addr - decompress_size);
else
target_addr = ALIGN_UP (image_target->link_addr
+ kernel_size + total_module_size, 32);
}
else
target_addr = image_target->link_addr;
ehdr->e_entry = grub_host_to_target32 (target_addr);
@ -1439,7 +1615,6 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
}
grub_util_write_image (core_img, core_size, out);
free (kernel_img);
free (core_img);
free (kernel_path);

9
util/grub-mknetdir.in
View file

@ -27,12 +27,8 @@ libdir=@libdir@
PACKAGE_NAME=@PACKAGE_NAME@
PACKAGE_TARNAME=@PACKAGE_TARNAME@
PACKAGE_VERSION=@PACKAGE_VERSION@
target_cpu=@target_cpu@
platform=@platform@
host_os=@host_os@
pkglibdir=${libdir}/`echo ${PACKAGE_TARNAME}/${target_cpu}-${platform} | sed ${transform}`
localedir=@datadir@/locale
native_platform=@platform@
pkglib_DATA="moddep.lst command.lst fs.lst partmap.lst parttool.lst handler.lst video.lst crypto.lst terminal.lst"
self=`basename $0`
@ -64,7 +60,7 @@ Install GRUB on your drive.
--subdir=DIR relative subdirectory on network server
--grub-mkimage=FILE use FILE as grub-mkimage
$self copies GRUB images into net_directory/subdir/${target_cpu}-${platform}
$self copies GRUB images into net_directory/subdir/target_cpu-platform
Report bugs to <bug-grub@gnu.org>.
EOF
@ -222,7 +218,8 @@ if [ "${override_dir}" = "" ] ; then
process_input_dir ${pc_dir} i386-pc
fi
else
process_input_dir ${override_dir} ${target_cpu}-${native_platform}
source "${override_dir}"/modinfo.sh
process_input_dir "${override_dir}" ${grub_modinfo_target_cpu}-${grub_modinfo_platform}
fi

7
util/grub-mkrescue.in
View file

@ -27,8 +27,6 @@ libdir=@libdir@
PACKAGE_NAME=@PACKAGE_NAME@
PACKAGE_TARNAME=@PACKAGE_TARNAME@
PACKAGE_VERSION=@PACKAGE_VERSION@
target_cpu=@target_cpu@
native_platform=@platform@
pkglib_DATA="moddep.lst command.lst fs.lst partmap.lst parttool.lst handler.lst video.lst crypto.lst terminal.lst"
self=`basename $0`
@ -231,14 +229,15 @@ if [ "${override_dir}" = "" ] ; then
process_input_dir ${efi64_dir} x86_64-efi
fi
else
process_input_dir ${override_dir} ${target_cpu}-${native_platform}
source "${override_dir}"/modinfo.sh
process_input_dir "${override_dir}" ${grub_modinfo_target_cpu}-${grub_modinfo_platform}
multiboot_dir=
pc_dir=
efi32_dir=
efi64_dir=
coreboot_dir=
qemu_dir=
case "${target_cpu}-${native_platform}" in
case "${grub_modinfo_target_cpu}-${grub_modinfo_platform}" in
i386-multiboot) multiboot_dir=${override_dir} ;;
i386-coreboot) coreboot_dir=${override_dir} ;;
i386-qemu) qemu_dir=${override_dir} ;;

8
util/grub.d/20_linux_xen.in
View file

@ -51,6 +51,14 @@ else
LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
fi
# Allow overriding GRUB_CMDLINE_LINUX and GRUB_CMDLINE_LINUX_DEFAULT.
if [ "${GRUB_CMDLINE_LINUX_XEN_REPLACE}" ]; then
GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX_XEN_REPLACE}"
fi
if [ "${GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT}" ]; then
GRUB_CMDLINE_LINUX_DEFAULT="${GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT}"
fi
if [ "x`${grub_probe} --device ${GRUB_DEVICE} --target=fs 2>/dev/null || true`" = xbtrfs ]; then
rootsubvol="`make_system_path_relative_to_its_root /`"
rootsubvol="${rootsubvol#/}"