Ubuntu
debian-installer package

  1. Bug #31435
  2. Comment #14

Comment 14 for bug 31435

Revision history for this message
Carl Karsten (carlfk) wrote : Re: "put grub where?"

I think the bug here is that the installer allows /boot to be on a raid or LV volume, which grub doesn't support (based on: http://grub.enbug.org/TodoList Add support for software RAID. Add support for LVM)

I think the installer should reject or at least warn against it.

There are some exceptions:
2 partitions (example: hda1 and hdb1) raid1 (mirror) – grub can use one copy of the mirror (hda1) to boot from, and then the kernel will mount /boot on md0. This 'works' but isn't really 'working' because if hda1 fails, the box won't boot because grub isn't making use of the redundant copy. OTOH, the hdb1 copy would still be intact and could be used to manually rebuild hda1. No clue if the installer could create this setup. I think if someone wants it, they should use the installer to create /boot on hda1, nothing on hdb1 and create the raid post install.