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Adding new disk to LVM + crypt

Link to this post 21 Apr 11

Hi.

I have currently disk setup like this:

sda1:boot
sda2:lvm-swap
sda2:lvm-root

sda2 was encrypted prior to lvm.
I need to increase lvm-root size with new disk, but I'm unsure how to do that properly. Suppose my new disk is sdb, I guess it's just something like

fdisk sdb, add new partition of type 8e
mkfs.ext3 sdb1
pvcreate sdb1
vgextend lvmgroup sdb1
lvextend -L 100%FREE lvm-root

Is this correct? And what about encryption, do I just encrypt sdb1 before doing the above, like I did with sda?
I'm just looking forward to do this without any dataloss from lvm-root.

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