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Re: [linux-lvm] LVM2 compatible with LVM1?



On Wed, Jul 17, 2002 at 07:00:26AM +0200, Ph. Marek wrote:
> Hello everybody,
> 
> I've got a question I couldn't find an answer yet.
> Is LVM2 compatible with LVM1? That is, are the on-disk-storage and the 
> command-line-parameters the same, do they present themselfes via devfs in the 
> same manner? (The last point I take as given, as it's only a logical sight 
> via my given names)
> 
> If it's possible I'd like to change the kernel, substitute the userspace-tools 
> (at startup, depending on whether LVM1 or LVM2 is used currently) and reboot 
> AND use the existing data.
> 
> Is that possible?

Yes, I do this all the time. In fact most of my kernels have both LVM1 and
device-mapper in them and I switch between the two without rebooting - remember
to vgchange -an first though !

If you do find any incompatibilites then please let us know.

patrick




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