Hey, Have you changed the hard disk configuration on this machine recently by any chance?
We are used to seeing this error when the install device configured for GRUB have changed. Can you run `dpkg-reconfigure grub-efi-amd64-signed` and see if it prompts you for a new install device? It could potentially have other causes as well, I am just trying to eliminate the common one. Mate -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2055235 Title: package grub-efi-amd64-signed 1.201+2.12-1ubuntu1 failed to install/upgrade: installed grub-efi-amd64-signed package post- installation script subprocess returned error exit status 10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/2055235/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
