I've got an Ubuntu server set up that has been running happily for a year or so with no problems to speak of. It's configured in a RAID-1 to keep everything nice and backed up. Yesterday we had a brief power flicker following some lightning. When I went to power everything back up today, I got error: out of disk.
Looking around with ls
shows me eight volumes. I get various errors trying to ls
them:
- hd0:
unknown filesystem
- hd1:
unknown filesystem
- md/0:
unknown filesystem
- md/1:
unknown filesystem
- hd0,msdos:
bad filename
- hd0,msdos1:
unknown filesystem
- hd1,msdos2:
bad filename
- hd1, msdos1:
bad filename
Booting into a GUI with a Live CD shows me two drives that I can't access. The searches I've done so far have suggested that the problem might be a corrupted grub.cfg. 1) How can I fix that, and 2) do I need to take any special steps since I've got a RAID-1 setup?
Thanks!
sudo update-grub
instead. If it happened today, I'd try @kraxor's suggestion; good chance this 'ATA disk support' repair option will do the same relocation of grub.cfg, but in a more controlled manner. – Ruud Helderman Jun 17 '14 at 23:50