[Wolves] Linux software RAID ?

[Ron Wellsted]

On Sun, 2003-12-28 at 13:02, Dan Jones wrote:
> Ron Wellsted wrote:
> > On Sat, 2003-12-27 at 16:28, Ade wrote:
> >>Hi
> >>
> >>I was wondering, how easy is it to setup software RAID ?
> >>Would I be able to put my OS on say two disks setup as RAID 0? Or can 
> >>the OS not live on a software RAID partition?
> >>
> >>Cheers
> > Hi Ade,
> > 
> > The OS can only reside on a software RAID1 partition. This works as both
> > disks contain an identical copy of the partition either of which can be
> > used by the boot loader. The full software RAID support is not available
> > until the kernel and the relevant modules have been loaded.
> 
> 'ang on a minute....
> 
> Maybe I'm being thick (a distinct possibility :) ) but I thought you 
> could put /boot in a diddy little partition containing an initrd or 
> somesuch and have the rest as software RAID0 (since the modules and 
> whatnot could be loaded as the initial ramdisk)?
> 
> Or maybe I am tripping, or complicating things.

You CAN do this but it really complicates the disk partitioning and the
slightest slip up in a kernel upgrade can result in an unbootable system
(unless you have a boot floppy with the right kernel & modules).


-- 
Ron Wellsted
http://www.wellsted.org.uk
ron at wellsted.org.uk
N 52.567623, W 2.137621