[dm-crypt] Open raid1 with luks encryption after a raid re-create

Arno Wagner arno at wagner.name
Mon Nov 23 04:35:04 CET 2015


On Sun, Nov 22, 2015 at 23:30:23 CET, Sven Eschenberg wrote:
[...]
> Now to your question, once you know the offset of the header:
> 1.)Setup a loop device from your image (You can use an offset into
> the image where your loop device starts with sector 0) see --offset
> in losetup man page.

Ah, yes. That would save copying it.

> Inspect loopdevice if the LUKS Header now is on sector 0
> 2.)Try a cryptsetup luksopen in readonly mode

Good idea. With that it may be reasonaly safe to work
with the original disk. I still would make a full
backup before.

Regards,
Arno
-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno at wagner.name
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