As reported by 宋文武 at
<https://lists.gnu.org/archive/html/guix-devel/2015-11/msg00096.html>:
Follow the manual to setup encryted root, using the desktop.scm
template, but
at the final step, it failed with:
Path '/mnt/boot/grub' is not readable by GRUB on boot.
Installation is impossible. Aborting.
(can be reproduced by `grub-install /dev/sdb --boot-directory
/mnt/boot')
After search, it seems that an un-encrypted boot partition is needed:
https://wiki.archlinux.org/index.php/Dm-crypt/Encrypting_an_entire_system#Preparing_the_boot_partition
So, I run fdisk to add a boot partiotion, finally install finished!
But it can't boot, I have to mount the encrypted root in Grub's cmdline:
insmod cryptodisk
insmod luks
cryptomount hd0,msdos2
Ludo’.
