GRUB2 fails with RAID1 with non-matching partition tables

[Florian Besser]

How to reproduce:

Use 1 PC with 2 HDDs, run Ubuntu on first HD, Windows on second HD. -> Ubuntu uses msdos Partition table, Windows uses (in my special case) GPT Partition table. Everything works great so far.

Decide that you'd like to use RAID1 on that PC, with those 2 aforementioned HDDs, and install only Ubuntu on that Raid (so throw out Windows).

Get your server installation (I used an USB Stick), try to install: Partitioning the disks works great, creating the RAID works, formatting RAID works, installation of system works. Installation of GRUB2 DOESN'T work, and fails.

-> when restarting, only grub prompt is available, but system is bootable with:
linux /vmlinuz root=/dev/md0
initrd /initrd.img
boot

So obviously the HDDs work correctly. The system also works, as far as I can tell. Manual installation via "sudo grub-install /dev/sdb" still fails (since /dev/sdb uses GPT, remember?)

So, one is stuck ;)

Only solution is to create a new Partition table in /dev/sdb (I used a 11.04 Live-CD for that).

Hope you get that fixed or allow the installer to manually create/alter partition tables.

Greetings
Flo

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for grub2 (Ubuntu) because there has been no activity for 60 days.]