Grub Bug

[mrobo]

We have a Compaq Proliant ML370 with a CPQ Smart Array 431
controller. We also have an embedded scsi controller with 2
channels and an Adaptec 39160 scsi controller attached to 2
CMD Raid controllers with 27GB of disk each and one shared
spare. The problem we had was with the initial installation
of RedHat Linux 7.2. The install would proceed without
problem until everything was done and and the system would
reboot. The screen would come up and it would just say
"GRUB" in the upper left corner of the screen and noting
else. We also experienced a similar problem with LILO. To
fix LILO we just had to edit lilo.conf and remove the
partition info from the boot device. For example the
following line was changed from "boot=/dev/ida/c0d0p2" to
"boot=/dev/ida/c0d0". Grub was more difficult. First Grub
could not find our boot device because the device.map file
was wrong. Since our device was not a hda device and was
not directly under /dev and instead was under /dev/ida
Grub was unable to find it. So we manually edited the
device map to add the correct device in. Which was actually
hd0 we then ran the command "grub --device-map=device.map.
Next we had to run the
"grub > setup --stage2=/dev/boot/grub/stage2 (hd0,0)" and
finally we edited grub.conf to point to the correct device
(hd0) not (hd2) which is what the grub installer put in.

I hope this helps.

--Mike