[linux-lvm] moving LVM to a new box

[Tupshin Harper]

Jean-Luc Coulon (f5ibh) wrote:

> Le 09.02.2005 14:50:28, Sutto Zoltan a écrit :
>
>> I have a newly installed/configured/updated FC3 with LVM2 on a P3 box.
>> How can I move this working system to a new P4 box with a larger 
>> SATA  disk without reinstalling/upgrading/configuring the whole OS.
>>
>> Any help would be appreciated
>
>
> If I suppose you can install and boot you old disk in you new system  
> together with the new disk, you can do the following (I suppose the 
> old  disk is /dev/hda with a /dev/hda1 partition, and new one /dev/sda 
> with  a /dev/sda1 partition, I suppose your volume group is vg0):
>
> make backups  ;-)
>
> - pvcreate /dev/sda1
> - vgextend vg0 /dev/sda1
> - move all the lv data with pvmove /dev/hda1.
> - vgreduce vg0 /dev/hda2
> - you will have to configure lilo/grub to install and point on your 
> new  disk.
>
> I've done such a way but it was not with lvm2. Maybe there are some  
> pvmove issues with lvm2.

I just did exactly this for a new box, using lvm2, and it worked great. 
(re-emphasize "make backups"). The only issue I has was that pvmove 
failed until I realized that a necessary kernel module (dm_mirror, I 
believe) wasn't loaded.

-Tupshin