Re: lost with booting

:
:-On [20040908 21:22], Matthew Dillon ([e-mail]) wrote:
:>    What access mode is your BIOS using for that disk?  If it isn't set
:>    to LBA mode, try setting it to LBA.
:
:1.0A works and boots all the way.
:
:-- 
:Jeroen Ruigrok van der Werven <asmodai(at)wxs.nl> / asmodai / kita no mono

    Again with the LBA mode.  Try setting your BIOS to access the disk in
    LBA mode and see if it works with the most recent boot code.

    --

    I've looked at the CHS code and I can't find anything wrong with it.
    I tried booting my test box with it set to CHS and it fails, but for
    some reason the BIOS seems to be changing the disk parameters when I
    switch it into CHS mode.

    My BIOS reports that my HD's cylinders/heads/sectors is 4997/255/63 in
    LBA mode, and 19679/16/255 in CHS mode.  19679/16/255 is illegal.  The
    int 0x13,8 BIOS call that reports CHS style cylinders/heads/sectors
    is limited to 63 sectors per track (there aren't any more bits available
    for more then that), not 255, so I just don't see how the boot code
    could ever possibly work in CHS mode with my BIOS.

    What I think I may try doing is reordering the boot1/boot2/loader code
    to always try packet mode first, and only fall back to CHS if packet
    mode fails.  Then packet mode will be used for any BIOS that is 
    packet-mode enabled, regardless of the mode set in the BIOS.  That way
    fdisk's cylinder/head/sector parameters could be completely broken
    but it would still work.

					-Matt
					Matthew Dillon 
					<[e-mail]>