Re: [PATCH] ignore partition table on disks with AIX label

From: Valdis . Kletnieks
Date: Wed May 17 2006 - 06:14:40 EST

On Wed, 17 May 2006 11:10:56 +0200, Olaf Hering said:
> On Wed, May 17, Valdis.Kletnieks@xxxxxx wrote:
> > One has to wonder if it might not be better to treat this case as
> > "one partition covering the entire disk", or even better, decode the AIX LVM
> > info and see if there's any LVM segments present on the disk, so as to limit
> > the chances of accidentally splatting live data.
> The check can go once someone has implemented proper support to read the
> drives. Up to now the bogus partitions cause only confusion and practical
> doesnt help anyone. So let it go.

Is there any interest in being able to deal with AIX's LVM and/or JFS/JFS2
(probably only read-only)? If so, what level of support would be needed
to make it useful?

(Personally, being able to deal with it on a read-only basis for forensics
work would be useful - currently there's no really good way to deal with
an AIX system in a forensically sound manner, because 'importvg' and
friends have a tendency to scribble on the disks....)

Sanest way to approach it would probably be a mostly-userspace that
grovels out the LVM data and creates a device-mapper target. ISTR there
was such a beast for the EVMS code, but I haven't gone digging for it yet.

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