The attached patch fixes the issue, as it allows grub-installer to use the boot device passed to grub_default() when no GRUB installation device is explicitly set like in 'Erase disk and install'. As such, if the target is /dev/sdb, GRUB will no longer try to be installed to /dev/sda (assuming both are non-removable drives), and instead will just install to /dev/sdb.
** Patch added: "ubiquity-grub.patch" https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/704763/+attachment/4282696/+files/ubiquity-grub.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/704763 Title: boot loader not installed to target disk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/704763/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs