[arch-releng] LVM Installation Issues

Thomas Bächler thomas at archlinux.org
Tue May 11 14:23:40 CEST 2010

Am 11.05.2010 13:13, schrieb Matthew Monaco:
> I've done a number of lvm2/luks setups. On the luks end, are you setting
> your keysize too low? For aes-xts-plain, the key size can only be 256 or
> 512, so if you set it to 128 you'll have a problem.

aes-xts-plain also allows 384.

> The other thing I've wound up doing every time for it to work is to make
> sure I use the same exact name for the encrypted disk and the vg. So
> typically I call the dm-crypt parition "vg0" so it mounts to
> /dev/mapper/vg0

That isn't necessary. The name of the dm-crypt volume doesn't matter at
all actually. I always call it "lvm" or "pv".

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