[linux-lvm] SuSE/LVM boot problem

Andi Kleen ak at suse.de
Wed May 31 16:18:03 UTC 2000

On Wed, May 31, 2000 at 06:13:08PM +0200, Christoph Hellwig wrote:
> Andi Kleen schrieb:
> > > 
> > >  - lilo needs to understand about lvm and use the lvm provided ways to
> > >    get physical mappings.
> >
> > That's complicated. Someone did a similar hack for RAID0, but LVM is more
> > complicated than MD RAID0. Better just supply the real block numbers to lilo
> > and rerun it as needed (LVM could warn about it) 
> Don't use lilo, use grub. I'm trying to implement lvm support in grub. The idea 
> is that grub should read the first lvm on each pv. This first lv must be only on 
> this pv. (and have a special name, eg lv_root, so grub can find it)

Limiting to the ``first LV'' sounds ugly. When you read the first, is it
that hard to read the second (and allow arbitary names)  ?

> > > 
> > >  - the kernel needs to be able to reconstruct enough of the lvm
> > >    descriptors to mount / at boot time.
> The kernel should know about all lvm descriptor and the /etc/lvm* should only be 
> used for pvcreate an similar programs. 

And who maintains that ? Using linuxrc and the normal LVM tools makes much
more sense IMHO. Just say no to kernel bloat.


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