On Saturday June 30, [email protected] wrote:
> Quoting Alasdair G Kergon <[email protected]>:
>
> > 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...
Version 0.90 MD superblocks (still the default) uses host-endian
values so you cannot move between architectures directly. However
isn't too hard to make it work.
Firstly, use
mdadm --examine --metadata=0.swap /dev/DEVICE
to check that you have the right devices.
Then
mdadm --assemble /dev/md0 --update=byteorder /dev/DEV0 /dev/DEV1 ....
That should assemble the array and update the superblocks so that they
are in the right byteorder and will assemble easily in future.
NeilBrown
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