I can manually input the following commands in grub2-signed=1.9~ubuntu12.04.1+1.99-21ubuntu3.5 and grub2-sign=1.9+2.00-7ubuntu11 on USB drive to show GRUB menu.
search.fs_uuid 4B61-C71D root hd1,msdos1 set prefix=($root)/boot/grub configfile $prefix/grub.cfg So the problem seems to be that it will not read grub.cfg under the (hd1,msdos1)/EFI/BOOT/ by default. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1087653 Title: grub2-signed doesn't support removable drive. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1087653/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
