linux-kernel - Re: Moving MD/LVM from PPC to x86

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Date:	Mon, 2 Jul 2007 10:52:53 -0400
From:	"John Stoffel" <john@...ffel.org>
To:	Neil Brown <neilb@...e.de>
Cc:	Turbo Fredriksson <turbo@...our.com>,
	Alasdair G Kergon <agk@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Moving MD/LVM from PPC to x86

>>>>> "Neil" == Neil Brown <neilb@...e.de> writes:

Neil> On Saturday June 30, turbo@...our.com wrote:
>> Quoting Alasdair G Kergon <agk@...hat.com>:
>> 
>> > On Thu, Jun 28, 2007 at 11:02:39PM +0200, Turbo Fredriksson wrote:
>> >>   2. How do I move a VG/PV/LV from PPC to x86?
>> >
>> > The on-disk LVM2 metadata should be accessible from both
>> > architectures.
>> 
>> Well, when I move the disks, the intel machine say that one of
>> the disks don't have a partition table and that the other don't
>> have any MD superblock...

Neil> Version 0.90 MD superblocks (still the default) uses host-endian
Neil> values so you cannot move between architectures directly.
Neil> However isn't too hard to make it work.

So if we have version 1.0, 1.1 and 1.2 superblocks, why aren't they
the default yet?  I assume they're useful, so let's use them!  

John
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