Michael Marxmeier writes:
> Brian Kress wrote:
> > LVM has to run a userspace program vgscan to load the location
> > of the lvm partitions into kernelspace. It does this by scanning
> > EVERY device in /dev for an LVM signature. While I really like LVM,
> ^^^
> Nope. Only block devices.
>
> > this part strikes me as rather unclean. Devfs does help with this
> > a bit, since then at least its not scanning non-existant devices. An
>
> /proc/partitions is used. So again only known block devices are
> scanned.
> And this needs to be done in order to detect pv signature and
> construct the volume groups.
>
> > MD style kernel-based autodetect for LVM would be really nice, but I
> > think Heinz is really busy (since LVM 0.8 for 2.2.x still hasn't
> > shown up).
>
> IMHO there is no need to rush and bloat the kernel.
> It is not too hard to place vgscan/vgchange in the kernel but
> there are other options (like a temporary root block device)
> which should be considered.
> IMHO the initrd aproach should work reasonable for now.
No, we don't want the added complexity of initrd. Anyway, the MD
solution is available.
Regards,
Richard....
Permanent: rgooch@atnf.csiro.au
Current: rgooch@ras.ucalgary.ca
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