[Gllug] Grub on lvm

[Stephen Nelson-Smith]

Hi,

I have a machine set up as follows:

2 disks in a software raid1 presented as /dev/md0

Those disks make an LVM PV, in which there is one VG - /dev/lvmvolume

4 LVs - one for swap, root, home, and var.

The machine currently has lilo on it, and I've been asked to install grub.

What should I use as the INSTALL_DEVICE?

root at wol2:~# grub-install /dev/sda
/dev/mapper/lvmvolume-root does not have any corresponding BIOS drive.
You can run grub-install on your RAID device [/dev/mapper/lvmvolume-root],
or you can define [/dev/mapper/lvmvolume-root] in [/boot/grub/device.map].
root at wol2:~# grub-install /dev/mapper/lvmvolume-root
/dev/mapper/lvmvolume-root does not have any corresponding BIOS drive.
You can run grub-install on your RAID device [/dev/mapper/lvmvolume-root],
or you can define [/dev/mapper/lvmvolume-root] in [/boot/grub/device.map].
root at wol2:~# grub
Probing devices to guess BIOS drives. This may take a long time.

       [ Minimal BASH-like line editing is supported.   For
         the   first   word,  TAB  lists  possible  command
         completions.  Anywhere else TAB lists the possible
         completions of a device/filename. ]
grub> root (hd0)
root (hd0)
grub> setup (hd0,0)
setup (hd0,0)

Error 17: Cannot mount selected partition
grub>

The machine is running Ubuntu 8.04

S.
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