I have UEFI, Ubuntu is installed in UEFI mode I confirm. I've fixed using this method: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1571925/comments/7
The strange thing is that EFI partition is not mounted, but it is in the / partition Problem solved -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1707497 Title: package shim-signed 1.32~17.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: il sottoprocesso installato script di post- installation ha restituito lo stato di errore 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1707497/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
