* grub-core/kern/emu/getroot.c (grub_find_device): Recognize
dir == /dev/mapper.
(grub_guess_root_device): Use already known os_dev if possible.
* grub-core/kern/emu/hostdisk.c
(convert_system_partition_to_system_disk): Scan only in /dev/mapper
if device is known to be a dm one.
Also-By: Colin Watson <cjwatson@ubuntu.com>
* grub-core/kern/misc.c (grub_divmod64_full): Renamed to ...
(grub_divmod64): ... this.
* include/grub/misc.h (grub_divmod64): Removed. All users switch to full
version.
* grub-core/kern/emu/getroot.c (grub_util_is_dmraid): Removed.
(grub_util_is_lvm): New function.
(grub_util_get_dev_abstraction): Assume dmraid if not lvm rather
than lvm if not dmraid.
Handle mapped md nodes.
* grub-core/kern/emu/hostdisk.c (device_is_mapped): Rename to ...
(grub_util_device_is_mapped): ... this. Make always available. All users
updated.
(grub_util_get_dm_node_linear_info) [HAVE_DEVICE_MAPPER]: New function.
(convert_system_partition_to_system_disk): Handle lvm, mpath and
dmraid nodes.
* include/grub/emu/misc.h (grub_util_device_is_mapped): New proto.
Also-By: Colin Watson <cjwatson@ubuntu.com>
as opposed to after.
* grub-core/Makefile.core.def (kernel): Increase linking address.
(none_decompress): Likewise.
(xz_decompress): Likewise.
* grub-core/boot/mips/startup_raw.S: Use prewritten uncompression
address.
* grub-core/kern/mips/arc/init.c (grub_machine_init): Handle memory
layout change.
(grub_arch_modules_addr): New function.
* grub-core/kern/mips/init.c (grub_arch_modules_addr): Moved from here...
* grub-core/kern/mips/loongson/init.c (grub_arch_modules_addr): .. here
* grub-core/kern/mips/qemu_mips/init.c (grub_arch_modules_addr): ... and
here.
* grub-core/kern/mips/startup.S (total_size): Rename to ...
(grub_total_modules_size): ... this. Make global.
[GRUB_MACHINE_ARC]: Don't attempt to move modules out of the bss.
* include/grub/offsets.h (GRUB_KERNEL_MIPS_LOONGSON_UNCOMPRESSED_ADDR):
New definition.
(GRUB_KERNEL_MIPS_QEMU_MIPS_UNCOMPRESSED_ADDR): Likewise.
(GRUB_KERNEL_MIPS_ARC_UNCOMPRESSED_ADDR): Likewise.
(GRUB_KERNEL_MACHINE_UNCOMPRESSED_ADDR): Likewise.
(GRUB_KERNEL_MIPS_ARC_LINK_ADDR): Increased.
* util/grub-mkimage.c (image_target_desc): New flag
PLATFORM_FLAGS_MODULES_BEFORE_KERNEL.
(image_targets): Set PLATFORM_FLAGS_MODULES_BEFORE_KERNEL on mips-arc.
(generate_image): Handle images with modules before kernel.
* Makefile.util.def (libgrubmods.a): Add dvh.c.
* conf/Makefile.common (CCASFLAGS_PLATFORM): Add -mips3 on all mips
platforms.
* configure.ac: New target mips-arc.
* gentpl.py: Likewise.
* grub-core/Makefile.am: Likewise.
* grub-core/Makefile.core.def: Likewise.
(xz_decompress): Remove -D GRUB_MACHINE_LINK_ADDR.
(none_decompress): Likewise.
(lsdev): New module.
(datetime): Use lib/arc/datetime.c on ARC.
(part_dvh): New module.
* grub-core/commands/arc/lsdev.c: New file.
* grub-core/disk/arc/arcdisk.c: Likewise.
* grub-core/kern/mips/arc/init.c: Likewise.
* grub-core/kern/mips/cache_flush.S: Don't flush non 4-byte
aligned addresses.
* grub-core/kern/mips/dl.c (grub_arch_dl_check_header): Fix bigendian
support.
(grub_arch_dl_relocate_symbols): Likewise.
* grub-core/kern/mips/loongson/init.c (grub_get_rtc): Moved from here...
* grub-core/kern/mips/init.c (grub_get_rtc): ... here.
* grub-core/kern/mips/startup.S (grub_arch_cpuclock): Have on all
platforms.
* grub-core/lib/arc/datetime.c: New file.
* grub-core/loader/mips/linux.c: Always include time.h. Don't include
pci.h on non-loongson.
(envp_off) [!GRUB_MACHINE_MIPS_LOONGSON]: Remove.
(grub_linux_boot): Set unused registers to 0.
(grub_cmd_linux) [!GRUB_MACHINE_MIPS_LOONGSON]: Remove envp.
* grub-core/mmap/mips/loongson/uppermem.c: Moved from here ...
* grub-core/mmap/mips/uppermem.c: ...here.
* grub-core/partmap/dvh.c: New file.
* grub-core/term/arc/console.c: Likewise.
* grub-core/term/terminfo.c (ANSI_C0_STR): New const.
(grub_terminfo_set_current): Add terminal "arc".
(grub_terminfo_readkey): Support ARC sequences.
* include/grub/arc/arc.h: New file.
* include/grub/arc/console.h: Likewise.
* include/grub/disk.h (grub_disk_dev_id): Add
GRUB_DISK_DEVICE_ARCDISK_ID.
* include/grub/mips/arc/kernel.h: New file.
* include/grub/mips/arc/memory.h: Likewise.
* include/grub/mips/arc/time.h: Likewise.
* include/grub/mips/loongson/kernel.h (grub_halt): Moved from here ...
* include/grub/mips/kernel.h (grub_halt): ... here.
* include/grub/mips/loongson.h (GRUB_CPU_REGISTER_WRAP): Moved from
here...
* include/grub/mips/mips.h (GRUB_CPU_REGISTER_WRAP): ... here.
(GRUB_CPU_LOONGSON_COP0_TIMER_COUNT): Moved from here ...
* include/grub/mips/mips.h (GRUB_CPU_LOONGSON_COP0_TIMER_COUNT): .. here
* include/grub/mips/loongson/kernel.h (grub_reboot): Removed redundant
proto.
* include/grub/mips/loongson/memory.h (GRUB_ARCH_LOWMEMVSTART): Moved
from here ...
* include/grub/mips/memory.h (GRUB_ARCH_LOWMEMVSTART): ... here.
(GRUB_ARCH_LOWMEMPSTART): Moved from here ...
* include/grub/mips/memory.h (GRUB_ARCH_LOWMEMPSTART): ... here.
(GRUB_ARCH_LOWMEMMAXSIZE): Moved from here ...
* include/grub/mips/memory.h (GRUB_ARCH_LOWMEMMAXSIZE): ... here.
(GRUB_ARCH_HIGHMEMPSTART): Moved from here ...
* include/grub/mips/memory.h (GRUB_ARCH_HIGHMEMPSTART): ... here.
(grub_phys_addr_t): Moved from here ...
* include/grub/mips/memory.h (grub_phys_addr_t): ... here.
(grub_vtop): Moved from here ...
* include/grub/mips/memory.h (grub_vtop): ... here.
(grub_map_memory): Moved from here ...
* include/grub/mips/memory.h (grub_map_memory): ... here.
(grub_unmap_memory): Moved from here ...
* include/grub/mips/memory.h (grub_unmap_memory): ... here.
(grub_machine_mmap_iterate): Moved from here ...
* include/grub/mips/memory.h (grub_machine_mmap_iterate): ... here.
(grub_mmap_get_lower): Moved from here ...
* include/grub/mips/memory.h (grub_mmap_get_lower): ... here.
(grub_mmap_get_upper): Moved from here ...
* include/grub/mips/memory.h (grub_mmap_get_upper): ... here.
* include/grub/mips/loongson/time.h (grub_arch_cpuclock): Moved from
here ...
* include/grub/mips/time.h (grub_arch_cpuclock): ... here.
* include/grub/mips/loongson/time.h (grub_get_rtc): Moved from
here ...
* include/grub/mips/time.h (grub_get_rtc): ... here.
* include/grub/mips/loongson/time.h (grub_arch_cpuclock): Moved from
here ...
* include/grub/mips/time.h (grub_arch_cpuclock): ... here.
* include/grub/mips/loongson/time.h (grub_cpu_idle): Moved from
here ...
* include/grub/mips/time.h (grub_cpu_idle): ... here.
* include/grub/offsets.h (GRUB_KERNEL_MIPS_ARC_LINK_ADDR): New
definition.
(GRUB_KERNEL_MIPS_ARC_LINK_ALIGN): Likewise.
(GRUB_KERNEL_MIPS_ARC_COMPRESSED_SIZE): Likewise.
(GRUB_KERNEL_MIPS_ARC_UNCOMPRESSED_SIZE): Likewise.
(GRUB_KERNEL_MIPS_ARC_TOTAL_MODULE_SIZE): Likewise.
(GRUB_KERNEL_MIPS_ARC_PREFIX): Likewise.
(GRUB_KERNEL_MIPS_ARC_PREFIX_END): Likewise.
(GRUB_KERNEL_MIPS_ARC_MOD_ALIGN): Likewise.
(GRUB_MACHINE_LINK_ADDR): Likewise.
* include/grub/terminfo.h (GRUB_TERMINFO_READKEY_MAX_LEN): Increased
to 6.
* util/grub-install.in: Run dvhtool on ARC.
* util/grub-mkimage.c (image_targets): Add mips-arc.
* Makefile.util.def (libgrubmods.a): Add grub-core/kern/ia64/dl_helper.c
* configure.ac: Add ia64-efi target.
Probe for __ia64_trampoline, __udivsi3, __umoddi3, __udivdi3,
__divsi3, __modsi3, __umodsi3, __moddi3 and __divdi3 symbols.
* gentpl.py: Add ia64_efi platform.
Rename x86_efi to efi and Add ia64-efi. All users updated.
* grub-core/Makefile.am: Set KERNEL_HEADER_FILES for ia64-efi.
* grub-core/Makefile.core.def (kernel.img): Add compile flags for ia64.
Remove kern/generic/rtc_get_time_ms.c on EFI.
Add kern/ia64/efi/startup.S, kern/ia64/efi/init.c, kern/ia64/dl.c,
kern/ia64/dl_helper.c on ia64-efi.
Add kern/emu/cache.c on emu.
(linux): Use on loader/ia64/efi/linux.c on ia64.
* grub-core/gensymlist.sh (grub_register_exported_symbols): Check
whether symbol is a function.
* grub-core/kern/dl.c [GRUB_MACHINE_EMU]: Include sys/mman.h.
(grub_symbol): New field 'isfunc'.
(grub_dl_resolve_symbol): Return whole symbol rather than just address.
(grub_dl_register_symbol): New argument 'isfunc'. All users updated.
(grub_dl_load_segments): Place all sections into the same region.
[__ia64__]: Create trampolines and got.
[GRUB_MACHINE_EMU]: Call mprotect.
(grub_dl_resolve_symbols): Resolve symbol type as well.
[__ia64__]: Create function descriptors.
* grub-core/kern/efi/efi.c (grub_get_rtc): Renamed to ...
(grub_rtc_get_time_ms): ... this. Expressions simplified.
(grub_get_rtc): New function.
* grub-core/kern/emu/cache.c [__ia64__]: New file.
* grub-core/kern/emu/cache.S: Renamed to ...
* grub-core/kern/emu/cache_s.S: ... this.
[__ia64__]: Add a nop.
* grub-core/kern/emu/full.c (grub_arch_dl_get_tramp_got_size)
[__ia64__]: New function.
* grub-core/kern/emu/lite.c [__ia64__]: Include ../ia64/dl.c.
* grub-core/kern/ia64/dl.c: New file.
* grub-core/kern/ia64/dl_helper.c: Likewise.
* grub-core/kern/ia64/efi/init.c: New file.
* grub-core/kern/ia64/efi/startup.S: Likewise.
* grub-core/lib/efi/halt.c [__ia64__]: Don't try acpi.
* grub-core/lib/ia64/longjmp.S: New file (from glibc).
* grub-core/lib/ia64/setjmp.S: Likewise (from glibc).
* grub-core/lib/setjmp.S [__ia64__]: Include ./ia64/setjmp.S.
* grub-core/loader/ia64/efi/linux.c: New file.
* include/grub/dl.h (GRUB_MOD_NAME): Redefined using C rather than asm.
(GRUB_MOD_DEP): Likewise.
(grub_dl) [__ia64__]: New fields got and tramp.
(grub_dl): New field 'base'.
(grub_dl_register_symbol): New argument isfunc. All users updated.
(GRUB_IA64_DL_TRAMP_ALIGN): New definition.
(GRUB_IA64_DL_TRAMP_SIZE): Likewise.
(GRUB_IA64_DL_GOT_ALIGN): Likewise.
(grub_ia64_dl_get_tramp_got_size): New proto.
(GRUB_ARCH_DL_TRAMP_ALIGN) [__ia64__]: Likewise
(GRUB_ARCH_DL_GOT_ALIGN) [__ia64__]: Likewise
(grub_arch_dl_get_tramp_got_size) [__ia64__]: Likewise
* include/grub/efi/api.h: Skip call wrappers on ia64.
* include/grub/efi/pe32.h (GRUB_PE32_MACHINE_IA64): New definition.
* include/grub/efi/time.h (GRUB_TICKS_PER_SECOND): Change to 1000.
* include/grub/elf.h (ELF_ST_INFO): New definition.
* include/grub/ia64/efi/kernel.h: New file.
* include/grub/ia64/efi/memory.h: Likewise.
* include/grub/ia64/efi/time.h: Likewise.
* include/grub/ia64/kernel.h: Likewise.
* include/grub/ia64/setjmp.h: Likewise (from glibc).
* include/grub/ia64/time.h: New file.
* include/grub/ia64/types.h: Likewise.
* include/grub/libgcc.h (__udivsi3, __umodsi3, __umoddi3, __udivdi3,
__moddi3, __divdi3, __divsi3, __modsi3, __ia64_trampoline):
New protos.
* include/grub/offsets.h (GRUB_KERNEL_IA64_EFI_PREFIX): New definition.
(GRUB_KERNEL_IA64_EFI_PREFIX_END): Likewise.
* include/grub/types.h (PRIxGRUB_ADDR): Likewise.
* util/grub-mkimage.c (image_target_desc): New field pe_target.
All users updated.
(EFI64_HEADER_SIZE): New definition. All users updated.
(image_targets): Add ia64-efi.
* util/grub-mkimagexx.c (relocate_symbols): New arguments jumpers and
jumpers_addr. All users updated.
Create function descriptors.
(count_funcs): New function.
(unaligned_uint32): New struct.
(MASK20): New definition.
(MASK19): Likewise.
(MASKF21): Likewise.
(add_value_to_slot_20b): New function.
(add_value_to_slot_21_real): Likewise.
(add_value_to_slot_21): Likewise.
(ia64_kernel_trampoline): New struct.
(nopm): New variable.
(jump): Likewise.
(make_trampoline): New function.
(relocate_addresses): Handle ia64.
(make_reloc_section): Likewise.
(load_image): Likewise.
Also-By: Robert Millan <rmh.grub@aybabtu.com>
Also-By: Vladimir Serbinenko <phcoder@gmail.com>
* configure.ac: Rename yeeloong platform to loongson. All users updated.
* grub-core/Makefile.core.def (fwstart_fuloong): New image.
* grub-core/boot/mips/loongson/fuloong.S: New file.
* grub-core/boot/mips/loongson/fwstart.S: Wait for CS5536 to come up.
Explicitly init CS5536.
[FULOONG]: Don't use serial until CS5536 is available.
Set GPIO based on dumps.
(serial_hw_init) [FULOONG]: Handle CS5536 parts.
[FULOONG]: Handle GPIO and memory controller differences.
Parse machine type in $a2.
* grub-core/boot/mips/startup_raw.S: Determine and save the
architecture.
* grub-core/bus/cs5536.c (gpiodump): Move to fwstart.S.
(grub_cs5536_init_geode): Remove gpio part. Conditionalise DIVIL
init on architecture type.
* grub-core/kern/mips/loongson/init.c (grub_machine_init): Init
SIS315E. Don't init at_keyboard on fuloong.
(grub_halt): Support Fuloong.
* grub-core/kern/mips/startup.S [LOONGSON]: Save $s7.
* grub-core/loader/mips/linux.c (LOONGSON_MACHTYPE): Removed.
(loongson_machtypes): New array.
(grub_cmd_linux) [GRUB_MACHINE_MIPS_LOONGSON]: Pass the right machine
type.
* grub-core/term/ns8250.c (serial_get_divisor): New parameter port and
config. All users updated. Handle CS5536 serial.
* grub-core/term/serial.c (grub_serial_register): Conditionalise
default port on machine type. Register serial as inactive.
* grub-core/video/sis315pro.c: New file.
* include/grub/cs5536.h (GRUB_CS5536_MSR_MAILBOX_CONFIG_ENABLED): New
definition.
(GRUB_CS5536_MSR_MAILBOX_CONFIG): Likewise.
(GRUB_CS5536_MSR_DIVIL_LEG_IO_UART1_COM1): Likewise.
(GRUB_CS5536_MSR_DIVIL_LEG_IO_UART2_COM3): Likewise.
(GRUB_CS5536_MSR_DIVIL_UART1_CONF): Likewise.
(GRUB_CS5536_MSR_DIVIL_UART2_CONF): Likewise.
* include/grub/mips/loongson.h (GRUB_CPU_LOONGSON_SHUTDOWN_GPIO): Rename
to ...
(GRUB_CPU_YEELOONG_SHUTDOWN_GPIO): ... this.
* include/grub/mips/loongson/kernel.h (GRUB_ARCH_MACHINE_YEELOONG): New
definition.
(GRUB_ARCH_MACHINE_FULOONG): Likewise.
(grub_arch_machine): New extern var.
* include/grub/mips/loongson/serial.h
(GRUB_MACHINE_SERIAL_DIVISOR_115200): Renamed to ...
(GRUB_MACHINE_SERIAL_PORT0_DIVISOR_115200): ... this.
(GRUB_MACHINE_SERIAL_PORT): Renamed to ...
(GRUB_MACHINE_SERIAL_PORT0): ... this.
(GRUB_MACHINE_SERIAL_PORT2_DIVISOR_115200): New definition.
(GRUB_MACHINE_SERIAL_PORT1): Likewise.
(GRUB_MACHINE_SERIAL_PORT2): Likewise.
(GRUB_MACHINE_SERIAL_PORTS): Include ports 1 and 2.
* include/grub/term.h (grub_term_register_input_inactive): New inline
function.
(grub_term_register_output_inactive): Likewise.
* include/grub/video.h (grub_video_driver_id): New value
GRUB_VIDEO_DRIVER_SIS315PRO.
* util/grub-mkimage.c (image_target_desc): Rename name to dirname.
New field "names". All users updated.
New field value IMAGE_FULOONG_FLASH.
(generate_image): USe separate fwstart hashes for yeeloong and fuloong.
(grub_find_root_device_from_mountinfo): Remove non-virtual-device
test that was incorrectly reintroduced in r3214.
Reported by: Ian Dall. Fixes Savannah bug #33133.
New function.
(grub_util_biosdisk_close): Use grub_util_biosdisk_flush.
* include/grub/emu/hostdisk.h (grub_util_biosdisk_flush): New proto.
* util/grub-setup.c (setup): Use grub_util_biosdisk_flush.
* grub-core/disk/raid.c (ascii2hex): New function.
(grub_raid_open): Accept mduuid/%s specification.
* grub-core/kern/emu/getroot.c (get_mdadm_name): Revamped into ...
(get_mdadm_uuid): ... this.
(grub_util_get_grub_dev): Use mduuid/%s if UUID is available.
move-mounts appearing out of order. Fixes Ubuntu bug #738345.
* grub-core/kern/emu/getroot.c (find_root_device_from_mountinfo):
Build a list of relevant visible mounts using the mnt_id and
parent_mnt_id fields, and then scan that list at the end.
even more important testing by Colin.
* Makefile.util.def (libgrubmods.a): Add crc.c and gzio.c
* grub-core/Makefile.core.def (btrfs): Add crc.c.
* grub-core/fs/btrfs.c: Stub replaced with real implementation.
* grub-core/io/gzio.c (grub_gzio): New fields mem_input_size,
mem_input_off and mem_input. All users updated to accept in-RAM input.
(gzio_seek): New function.
(test_zlib_header): Likewise.
(grub_gzio_read): Likewise.
(grub_zlib_decompress): Likewise.
* grub-core/kern/emu/getroot.c (grub_find_root_device_from_mountinfo):
Accept partial and non-virtual mounts.
(grub_guess_root_device): Do rescanning after device_from_mountinfo to
avoid receiving /dev/dm-X as device.
* grub-core/kern/emu/misc.c (grub_make_system_path_relative_to_its_root):
Handle bind and partial mounts.
* grub-core/lib/crc.c: New file.
* include/grub/deflate.h: Likewise.
* include/grub/emu/misc.h (grub_find_root_device_from_mountinfo): New
proto.
* include/grub/lib/crc.h: New file.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New enum value
GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS.
* grub-core/kern/ieee1275/mmap.c (grub_machine_mmap_iterate): Ignore
adress_cells and size:cells if GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS
is set.
* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options): Set
GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS on powermacs.
(grub_machine_init): Don't check amount of low memory as reportedly
INT 12h can be broken and if low memory is too low we wouldn't have
gotten into grub_machine_init anyway.
* grub-core/kern/i386/pc/startup.S: Remove 0-data check.
* grub-core/lib/reed_solomon.c (decode_block): Do not proceed on 0 data
or 0 redundancy.
(grub_reed_solomon_add_redundancy): Do not proceed with 0 redundancy.
(grub_reed_solomon_recover): Likewise.
* include/grub/elfload.h (grub_elf32_size): New parameter. All users updated.
Return maximum segments alignment.
(grub_elf64_size): Likewise.
* kern/elf.c (grub_elf32_size): New parameter. All users updated.
Return maximum segments alignment.
(grub_elf64_size): Likewise.
* grub-core/loader/powerpc/ieee1275/linux.c:
(grub_linux_claimmap_iterate): New function. Uses the "available"property
in the "memory" node for memory allocation for kernel in the PowerPC loader.
(grub_linux_load32): Correctly find linux entry point offset.
(grub_linux_load64): Likewise.
* configure.ac: --enable-cache-stats added.
* config.h.in (DISK_CACHE_STATS): New define.
* grub-core/Makefile.core.def (cacheinfo): New command.
* include/grub/disk.h(grub_disk_cache_get_performance): New function.
* grub-core/commands/cacheinfo.c: New file.
* grub-core/commands/minicmd.c (grub_rescue_cmd_info): Updated and
moved to cacheinfo.c.
* grub-core/kern/disk.c: Use DISK_CACHE_STATS to disable disk cache
debug code.
* include/grub/disk.h: Likewise.
* Makefile.util.def (grub-setup): Add grub-core/lib/reed_solomon.c.
* grub-core/Makefile.am (rs_decoder.S): New target.
(kern/i386/pc/startup.S): Depend on rs_decoder.S.
* grub-core/kern/i386/pc/startup.S (reed_solomon_redundancy): New field.
(multiboot): Move to RS part.
(post_reed_solomon): New label.
(grub_boot_drive): Move to non-RS part since it's modified in memory
on boot.
Include rs_decoder.S.
* grub-core/lib/reed_solomon.c: New file.
* include/grub/offsets.h (GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY):
New definition.
(GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE): Removed.
(GRUB_KERNEL_I386_PC_RAW_SIZE): Updated.
(GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART): New definition.
* include/grub/partition.h (grub_partition_map): Change prototype of
embed to allow returning additional sectors.
* include/grub/reed_solomon.h: New file.
* util/grub-setup.c (setup): Handle Reed-Solomon.
Support degraded ZFS arrays in "grub-probe -t device" resolution.
* grub-core/kern/emu/getroot.c (find_root_device_from_libzfs): When
the pool is an array of devices, iterate through it and return the
first device that passes a stat() test (instead of blindly returning
the first one).
Build fixes for GNU/kFreeBSD.
* Makefile.util.def: Add `$(LIBZFS) $(LIBNVPAIR)' library dependencies
to programs that require ZFS conversion.
* grub-core/kern/emu/hostdisk.c (grub_util_biosdisk_is_floppy): Support
kernels that don't have FLOPPY_MAJOR.
