The script is correct. GRUB_DEVICE_BOOT is the /boot partition, and GRUB_DEVICE is your root partition, which is where linux expects to be pointed. What do you mean when you say it finds the incorrect location for vmlinuz and initrd?
** Changed in: grub2 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/990567 Title: update-grub set an invalid location To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/990567/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs