Two different things. The boot directory is /boot, the root directory is /. You don't need to use --boot-directory unless you want to install grub to somewhere other than /boot.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1020045 Title: "grub-install" inserts wrong UUID when 2 disks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1020045/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs