I have an older system where serpent works faster than aes. So what I tried is to partition the drive, creating, mounting and formatting a LUKS volume to store the system root on and then selecting it as "/" in the setup wizard.
What happens, however, is that upon first boot, I am dropped into the initramfs-shell where it appears it is missing the code to mount an encrypted root (complains about missing /conf/conf.d/cryptroot file if I remember correctly).
I'm wondering if it is possible to achieve this configuration? Maybe if I name it using the wizard's naming scheme (sdaX_crypt)?
Second, is it technically possible to have an encrypted /boot since the setup wizard won't permit it.