Craig Sanders writes:
I believe I see a change in a recent update of a Ubuntu 12.04 LTS machine. I do not see the GRUB selection screen anymore.
ubuntu's grub configuration is fucked up. it was bad enough in previous releases, and it has only got worse in Precise and Quantal.
Worse than needing to hit shift at exactly the right second, after waiting five minutes for the HP/IBM/SuperMicro BIOS to POST? At least extlinux will check CapsLock and ScrollLock, so you can turn on either during POST and it'll still trip extlinux out of "hidden" state.
[How to fix Ubuntu's grub config]
That more or less matches my notes, however I prefer to throw away grub entirely and use the same bootloader I use on CDs, USB keys and PXE... http://www.cyber.com.au/~twb/snarf/extlinux.txt http://www.cyber.com.au/~twb/snarf/extlinux-gpt.page PS: on 3TB disks, extlinux 4.05 worked but 4.06 and 5.something-pre would segfault, I'm not sure if it was the GPT or the deliberately degraded md RAID (was migrating to a larger RAID1 pair).