<blockquote>dd if=/dev/urandom of=containerFile
bs=1M count=GroesseInMB
</blockquote>
<blockquote> sudo cryptsetup -c aes-xts-plain64 -s 512 -h sha512 -y luksFormat /dev/sda3 </blockquote>
<blockquote>
cryptsetup luksOpen /dev/sd* neuesDevice
</blockquote>
<blockquote>
cryptsetup luksHeaderBackup /dev/sd* –header-backup-file headerBackup
</blockquote>
<blockquote>
cryptsetup luksOpen –header headerBackup
/dev/sd* neuerName
</blockquote>
<blockquote>
cryptsetup luksClose neuesDevice
</blockquote>