Analysis of the attached logs shows: - this was an initial install of Ubuntu, using the 16.04.1 installation media. - your system uses UEFI, so it is correct that the installer tries to install grub-efi-amd64-signed and shim-signed. - the EFI bootloader entries in nvram have been updated successfully to point to shimx64.efi (if the grub-install call from shim-signed had failed, the system would have been left with an "Ubuntu" entry pointing at grubx64.efi instead, since grub-efi-amd64-signed is installed in a different run of apt-get).
If the grub-install call in shim-signed.postinst has succeeded, the only other thing that this script calls that could fail is update-secureboot- policy. Unfortunately, the logs attached to this bug report don't show the actual output from the shim-signed postinst, which makes it impossible to diagnose this failure further. Do you have anything in /var/log/apt/term.log now that mentions shim-signed? ** Changed in: shim-signed (Ubuntu) Status: New => Incomplete ** Summary changed: - package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 + 16.04.1, initial install, efibootmgr succeeded: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 ** Summary changed: - 16.04.1, initial install, efibootmgr succeeded: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 + 16.04.1, initial install, system is UEFI: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1608172 Title: 16.04.1, initial install, system is UEFI: package shim-signed 1.18~16.04.1+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/1608172/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs