[Gllug] LVM & RAID

[Nix]

On Mon, 06 Mar 2006, Rich Walker suggested tentatively:
> Bruce Richardson <itsbruce at uklinux.net> writes:
> 
>> On Mon, Mar 06, 2006 at 08:50:36PM +0000, Nix wrote:
>>> >                  Mine is. I guess it's possible that grub groks Linux
>>> > software RAID these days, though.
>>> 
>>> AIUI, grub does not but LILO does, at least RAID 1. (But my GRUB knowledge
>>> is woefully outdated.)
>>
>> Grub does software raid.
>> http://www.planamente.ch/emidio/pages/linux_howto_root_lvm_raid.php
> 
> That's ... a hack ... and a half.

Certainly compared to LILO, for which you pretty much just have to say

boot=/dev/md0
raid-extra-boot=mbr-only

in the lilo.conf.


Oh, and that document is wrong: sticking the whole system in LVM has
always been possible with the aid of an initrd, and even space-efficient
thanks to uClibc and busybox. You have to constrain your /boot LV to be
located only on a single RAID1 PV, but that's unlikely to be killingly
difficult; --contiguous and the PV name as options to lvcreate, and
you're home free.

(Not that I'm using an initrd anymore. The sooner those horrible kludges
die, and pivot_root() along with it, the happier I'll be.)

-- 
`... follow the bouncing internment camps.' --- Peter da Silva
-- 
Gllug mailing list  -  Gllug at gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug