Blank screen on booting Ubuntu 11.10 from RAID
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
grub-installer (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
I run a network of machines each having 4 hard drives. Most are installed as JBOD (just a bunch of disks), but some are installed as RAID, where / is on a RAID1 device. After upgrading to 11.10, the RAID machines display a blank screen right at the beginning of the boot process and stop there - most of the time. The system does respond to Ctrl+Alt+Del at that state, and, every once in a while after many successive reboots, the system does boot successfully. I tested this on two different hardware configurations (nVidia chipset and Intel chipset) and with both 64- and 32-bit Ubuntu with no difference in results. The JBOD machines do not suffer from this issue.
Turning off modesetting does not seem to help. Given that the non-RAID (jBOD) setup works fine, I am thinking the issue is probably a GRUB+RAID issue, not a graphics issue. I noticed in 11.10 that /boot/grub/grub.cfg uses mduuid/* as opposed to md/*. Could that have something to do with the problem? I wonder if there is a preseed configuration to instruct grub-installer to use md/* instead of mduuid/*.
I edited /boot/grub/grub.cfg and modified mduuid/* to md/* everywhere, but the issue did not go away.