Am Donnerstag, 16. August 2007 schrieb the.real.kabel:

> I'm trying to setup and use encryption on my Gentoo-System. I want to do
> this with cryptsetup. Now after a few tries I followed the how-to's of
> the internet, for example the on on the German  Gentoo wiki, or the
> official dm-crypt guide. And always I get the same error:
>  cryptsetup -y -c aes -h ripemd160 -s 256 create home /dev/sda5

First: Better use the LUKS variant - emerge cryptsetup-luks. See 
http://luks.endorphin.org for details.

Make sure your kernel has support for dm-crypt + the hash and cipher 
algorithm(s) you want to use compiled either as module or into the kernel 
directly.

If this is the case, you can then

cryptsetup -y -c aes -h ripemd160 -s 256 luksFormat /dev/sda5
cryptsetup luksOpen /dev/sda5 home

HTH...

        Dirk

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