Grub Booting Disk On Chip

[Bob Chiodini]

I did some digging, however dangerous that may be.

I put a "phword" call in doc_stage1.S to print out the value of
"doc_seg".  It looks like the routine runs 4 times.  Once for each d000,
d200, d400, and d600, leaving d600 in doc_seg.

The DOC2000 I have is 32M.

Bob...

On Thu, 2002-05-30 at 10:59, Ilguiz Latypov wrote:
    On 30 May 2002, Bob Chiodini wrote:
    
    > 1.  I get "DoC 2000 at D600".  The DOC is really at D000.
    
    Weird.  Looks like BIOS calls DoC 2000 firmware with a different value of
    Command Segment register.  I don't know if addressing D000:0 by offsetting
    the D600 segment with a different value of IP register is possible.
    
    > default=1
    > [...]
    > 2.  I get several messages about GRUB trying to find
    > /boot/grub/menu.lst.  None of the messages indicate drive 0xE0.
    
    Does the "default" parameter in menu.lst makes GRUB attempt to load the
    second entry which refers to the disk 0x80?
    
    Ilguiz
-- 
Bob Chiodini
Sr. Communications Engineer
Dynacs Engineering Company, Inc.
DNX-18
Kennedy Space Center, Florida 32899
321-867-6313 (voice)
321-867-6300 (fax)