Indeed this is due to missing options in the installer: with some manual fiddling, it's long been possible to make grub boot from encrypted disk (thus removing

Indeed this is due to missing options in the installer: with some manual fiddling, it's long been possible to make grub boot from encrypted disk (thus removing the need for a separate /boot and its space issues): https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1062623 https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1062623 You could probably fix this on your system without installing from scratch, but it would take some careful planning (mostly wrt backups!). You'd need to boot from a recovery cd or such, copy /boot into /, edit /etc/fstab accordingly, and then follow the last few steps in the bug report above (from the chrooting onwards). I'd probably test this in a VM first.