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List:       linux-lvm
Subject:    Re: [linux-lvm] can't create a PV
From:       Gunther Clasen <gunther_clasen () arcor ! de>
Date:       2006-02-14 18:55:22
Message-ID: 20060214185522.GB8977 () tui ! site
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On Tue, Feb 14, 2006, Luca Berra wrote:

> On Tue, Feb 14, 2006 at 09:19:46AM +0000, Gunther Clasen wrote:
> >
> >Curiously, these 4 partitions had all been used in a software-RAID
> >volume. So I reckon that lvm somehow picked up the metadata of the
> >MD-device and refused to work.
> 
> this is documented in the manpage for lvm.conf
> 
> - snip -
> md_component_detection (If set to 1, LVM2 will ignore devices
> used as components of software RAID (md) devices by looking  for
> md  superblocks. This doesn't always work satisfactorily e.g. if
> a device has been  reused  without  wiping  the  md  superblocks
> first.
> - end snip -

On Tue, Feb 14, 2006, Alasdair G Kergon wrote:

> Not a good version to use.
> The md/partition detection was improved in 2.00.32.

Thank you for your help! So it is a squashed bug... ;-)

I must admit that I hadn't read man lvm.conf, although it hadn't helped:
above snip is not included in my version of it. :-(

Anyway, seems to work fine now...

Gunther

P.S.: Would have liked to use SuSE 10.0 instead of 9.2, but with support
for my modem broken, it's a non-starter :-(((

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