[CentOS] HowTo copy a Logical Volume to another LV

Jim Bartus jbartus at advance.net
Fri Oct 14 19:05:50 UTC 2005

Haven't actually tried it, but how about just a

dd if=/dev/vg00/lv00 of=/dev/vg00/lv01

Assuming both are unmounted/unchanging while you do it.


Jesse Waters wrote:
> hello all,
> Hoping for some help on copying Logical Volumes.
> I would like to copy an existing LV to a newly formed LV.
> I don't want to do a snapshot of an existing LV.
> Only way I've seen is to mount the to LV and:
> mount /dev/vg00/lv00 /mnt/orig
> mount /dev/vg00/lv01 /mnt/copy
> cd /mnt/orig
> tar cf - ./ |(cd /mnt/copy; tar xf - )
> Is there a LV tool to do this?
> Or an option used with lvcreate, such as --autobackup?
> Or maybe pvmove, but that seems more for moving To LV from PV or vesa versa?
> Thanks in advance,
> Jesse Waters
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