I got it figured out. Someone sugested those two commands but it looks
like grub only wants you to tell it about the disk device, not the
partition as well. It seems that it accepts device(hd0,4) only it
ignores the ,4 part. I left out that line and then had to use the
geometry command to specify the correct geometry for the drive and now
it's working.
I'm now using grub to dual boot windows and ubuntu on a sata hardware
fakeraid raid 0. If anyone is interested in how, instructions can be
found here:
https://wiki.ubuntu.com/FakeRaidHowto
Phillip Susi wrote:
I have an unusual disk setup where the hard disk can not be accessed
using the conventional /dev/hda device. I have been trying to explain
the proper mapping to grub, but it looks like it doesn't understand.
I tried to explain the mapping with these commands:
device (hd0,4) /dev/mapper/via_hfciifae5
device (hd0) /dev/mapper/via_hfciifae
As you can probably guess, the raw disk itself is accessed using the
block device /dev/mapper/via_hfciifae and the first extended partition
is accessed via /dev/mapper/via_hfciifae5. This partition is
formatted with ext2 and I mount under /boot. The bios sees
/dev/mapper/via_hfciifae as bios block device 0x80, so grub should
have no trouble booting from it.
When I issue the root (hd0,4) command I get an error message stating
that the partition table is corrupt. When I enable debug messages and
verbose mode, I see a debug message saying that it is reading from
/dev/mapper/via_hfciifae5. It looks like grub is looking for the MBR
on the partition block device instead of the disk block device, and I
think that is a bug.
Because I explained to grub with the device (hd0) command that it
should open /dev/mapper/via_hfciifae, it should look there for the
MBR, but it isn't. Am I doing something wrong or is this a bug?
For reference I am running ubuntu breezy which appears to have the
package "grub (0.95+cvs20040624-17ubuntu7)" installed.
_______________________________________________
Bug-grub mailing list
[email protected]
http://lists.gnu.org/mailman/listinfo/bug-grub
_______________________________________________
Bug-grub mailing list
[email protected]
http://lists.gnu.org/mailman/listinfo/bug-grub
