Surpass 1 TiB disk addressing limit. Note: there are no plans to handle
the 2 TiB disk limit in GRUB Legacy, since that would need considerable
rework. If you have >2TiB disks, use GRUB 2 instead.
* grub/asmstub.c (biosdisk): Add unsigned qualifier to `sector'.
* stage2/bios.c (biosdisk): Likewise.
* stage2/disk_io.c (rawread, devread, rawwrite, devwrite): Likewise.
* stage2/shared.h (rawread, devread, rawwrite, devwrite): Likewise.
* lib/device.c (get_drive_geometry): Replace BLKGETSIZE with
BLKGETSIZE64.
* stage2/char_io.c [!GRUB_UTIL] (memcpy): New function. It is
defined as an alias of grub_memmove. This is copied from GRUB 2.
* stage2/disk_io.c (print_completions): Simplified conditionals
to make it easier to edit the file with Emacs.
Added support for (cd).
(set_device): Likewise.
* stage2/common.c (init_bios_info): Check if BOOT_DRIVE is a
CDROM drive. If it is true, set CDROM_DRIVE to BOOT_DRIVE.
(cdrom_drive): New variable.
From Leonid Lisovskiy <lly@pisem.net>:
* stage2/start_eltorito.S: New file.
* stage2/stage2.c (run_menu): Use GRUB_INVALID_DRIVE instead of
0xFF.
* stage2/shared.h (STAGE2_ID_ISO9660_STAGE1_5): New macro.
[FSYS_ISO9660] (STAGE2_ID): Set to STAGE2_ID_ISO9660_STAGE1_5.
(struct geometry): Added a new member ``sector_size''.
(BIOSDISK_FLAG_CDROM): New macro.
(cdrom_drive): Declared.
* stage2/fsys_iso9660.c: New file.
* stage2/iso9660.h: Likewise.
* stage2/filesys.h (FSYS_ISO9660_NUM): New macro.
[FSYS_ISO9660] (iso9660_mount): Declared.
[FSYS_ISO9660] (iso9660_read): Likewise.
[FSYS_ISO9660] (iso9660_dir): Likewise.
(NUM_FSYS): Added FSYS_ISO9660_NUM.
* stage2/disk_io.c (fsys_table) [FSYS_ISO9660]: Added iso9660.
(current_drive): Use GRUB_INVALID_DRIVE.
(log2): New function.
(rawread): Use BUF_GEOM.SECTOR_SIZE instead of SECTOR_SIZE.
Change the type of BUFADDR from int to char *.
Use a virtual track to make sure that one track fits in the
buffer.
(sane_partition): Allow CURRENT_DRIVE to be CDROM_DRIVE, because
a bios drive for a CD-ROM is often assigned to greater than
0x88.
(set_device): Use GRUB_INVALID_DRIVE instead of 0xFF.
(setup_part): Likewise.
* stage2/cmdline.c (init_cmdline): Use GRUB_INVALID_DRIVE.
* stage2/builtins.c (install_func): Use GRUB_INVALID_DRIVE.
(setup_func): Added iso9660_stage1_5.
* stage2/bios.c (biosdisk): Don't fall back to the CHS mode
if the drive is a CDROM.
(get_cdinfo): New function.
(get_diskinfo): Call get_cdinfo if the drive is greater than or
equal to 0x88 or the drive supports LBA.
Set the sector size to SECTOR_SIZE if it is not a CD-ROM.
* stage2/asm.S (biosdisk_int13_extensions): Take a word
argument AX instead of a byte argument AH.
(get_diskinfo_int13_extensions): Removed.
* stage2/Makefile.am (noinst_HEADERS): Added iso9660.h.
(libgrub_a_SOURCES): Added fsys_iso9660.c.
(libgrub_a_CFLAGS): Added -DFSYS_ISO9660=1.
(pkgdata_DATA): Added iso9660_stage1_5 and stage2_eltorito.
(noinst_PROGRAMS): Added iso9660_stage1_5.exec and
start_eltorito.exec.
(noinst_DATA): Added start_eltorito.
(pre_stage2_exec_SOURCES): Added fsys_iso9660.c.
(START_ELTORITO_LINK): New variable.
(start_eltorito_exec_SOURCES): Likewise.
(start_eltorito_exec_CCASFLAGS): Likewise.
(start_eltorito_exec_LDFLAGS): Likewise.
(start_eltorito_exec-start.$(OBJEXT)): New dependency.
(stage2_eltorito): New target.
(iso9660_stage1_5_exec_SOURCES): New variable.
(iso9660_stage1_5_exec_CFLAGS): Likewise.
(iso9660_stage1_5_exec_CCASFLAGS): Likewise.
(iso9660_stage1_5_exec_LDFLAGS): Likewise.
* stage1/stage1.h (GRUB_INVALID_DRIVE): New macro.
* stage1/stage1.S (boot_drive): Use the macro GRUB_INVALID_DRIVE.
(real_start): Likewise.
* lib/device.c (get_drive_geometry): Set GEOM->SECTOR_SIZE to
SECTOR_SIZE by default.
* configure.ac (--disable-iso9660): New option.
From Ilguiz Latypov:
* configure.in: Fix a syntax error in a sed script.
* stage2/bios.c (get_diskinfo): PhoenixBIOS 4.0 Revision 6.0
for ZF Micro might understand the greater buffer size for the
"get drive parameters" int 0x13 call in its own way.
Supposedly the BIOS assumes even bigger space is available and
thus corrupts the stack. This is why we specify the exactly
necessary size of 0x42 bytes.
* stage2/bios.c (get_diskinfo): Clear out the structure DRP
before calling get_diskinfo_int13_extensions, because the Ralf
Brown's Interrupt List says that Dell machines using PhoenixBIOS
4.0 Release 6.0 fail, if DRP.FLAGS is not zero. Setting the
entire structure to zero may be overkill, but it should be safe.
* stage2/char_io.c [STAGE1_5] (grub_memset): Defined.
robertmh