grub2 ChangeLog boot/i386/pc/boot.S boot/i386/p...

[Yoshinori K. Okuji]

CVSROOT:        /cvsroot/grub
Module name:    grub2
Changes by:     Yoshinori K. Okuji <okuji>      08/02/03 18:56:08

Modified files:
        .              : ChangeLog 
        boot/i386/pc   : boot.S cdboot.S lnxboot.S pxeboot.S 
        include/grub/i386/pc: boot.h kernel.h 
        kern/i386/pc   : init.c startup.S 

Log message:
        2008-02-03  Yoshinori K. Okuji  <address@hidden>
        
            Add support for having a grub directory in a different drive. This
            is still only the data handling part.
            
            * kern/i386/pc/startup.S (multiboot_trampoline): Set %dh to 0xFF.
            (codestart): Save %dh in GRUB_ROOT_DRIVE.
            (grub_root_drive): New variable.
        
            * kern/i386/pc/init.c (make_install_device): Use GRUB_ROOT_DRIVE
            instead of GRUB_BOOT_DRIVE to construct a device name. Set
            GRUB_ROOT_DRIVE to GRUB_BOOT_DRIVE if it is 0xFF, otherwise use it
            as it was.
        
            * include/grub/i386/pc/kernel.h (grub_root_drive): New prototype.
        
            * include/grub/i386/pc/boot.h (GRUB_BOOT_MACHINE_ROOT_DRIVE): New
            macro.
            (GRUB_BOOT_MACHINE_DRIVE_CHECK): Set to 0x4f.
        
            * boot/i386/pc/pxeboot.S (_start): Set %dh to 0xFF. For now, this
            is bogus, because PXE booting does not specify any drive
            correctly.
        
            * boot/i386/pc/lnxboot.S (reg_edx): Set the second byte to 0xFF. I
            am not sure if this is really correct.
        
            * boot/i386/pc/cdboot.S: Set %dh to 0xFF, because the root drive
            is always identical to the boot drive when booting from a CD.
        
            * boot/i386/pc/boot.S (MOV_MEM_TO_AL): Removed. Not needed any
            longer.
            (root_drive): New variable.
            (real_start): Unconditionally set %dh to ROOT_DRIVE.
            (setup_sectors): Push %dx right after popping it, because %dh will
            be modified later.
            (copy_buffer): Restore %dx.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/grub2/ChangeLog?cvsroot=grub&r1=1.560&r2=1.561
http://cvs.savannah.gnu.org/viewcvs/grub2/boot/i386/pc/boot.S?cvsroot=grub&r1=1.11&r2=1.12
http://cvs.savannah.gnu.org/viewcvs/grub2/boot/i386/pc/cdboot.S?cvsroot=grub&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/grub2/boot/i386/pc/lnxboot.S?cvsroot=grub&r1=1.2&r2=1.3
http://cvs.savannah.gnu.org/viewcvs/grub2/boot/i386/pc/pxeboot.S?cvsroot=grub&r1=1.3&r2=1.4
http://cvs.savannah.gnu.org/viewcvs/grub2/include/grub/i386/pc/boot.h?cvsroot=grub&r1=1.8&r2=1.9
http://cvs.savannah.gnu.org/viewcvs/grub2/include/grub/i386/pc/kernel.h?cvsroot=grub&r1=1.12&r2=1.13
http://cvs.savannah.gnu.org/viewcvs/grub2/kern/i386/pc/init.c?cvsroot=grub&r1=1.22&r2=1.23
http://cvs.savannah.gnu.org/viewcvs/grub2/kern/i386/pc/startup.S?cvsroot=grub&r1=1.31&r2=1.32