I was upgrading from 16.10 to 17.04 and got this error. I did a boot repair and all is now well. I believe the problem was that the efi partition was not mounted. I don't know why - I've not changed anything since 16.10.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1682839 Title: package grub-efi-amd64-signed 1.80+2.02~beta3-4ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1682839/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
