Comment 9 for bug 2043101

Just to note this caught me out. I switched my Mantic system to use an encrypted root some weeks ago, and used luks2 (with pbkdf2 as Argon2 isn't supported by grub2).

This was working fine, but I decided to upgrade early to Noble today, only to find my system unbootable. I managed to sort it once I realised what the problem was (by converting to luks1), but I personally would have preferred this functionality left in, even if it's not supported by the official Ubuntu installer.