FYI, I just gave up and changed system. (still some of the functionality is lost)
I assume that the problem is the same (or very similar) and is related to miss-understanding the current hardware configuration by grub or some other configuration program. The solution would probably be to copy whatever is one the old system working so the change will be from an old working system to a new working system. Breaking the boot should be prevented as first priority. Only after the system boots properly the installer may offer improved (but risky) boot options. In short: don't break the computer when doing upgrades. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574104 Title: grub-install: error: cannot find EFI directory. package shim-signed 1.12+0.8-0ubuntu2 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/shim-signed/+bug/1574104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
