I think we first need to have a better idea what the setup for these Thinkpads is, since I routinely do test specifically Thinkpads multiple times are part of the shim update process, both before signing by Microsoft and after, before uploading.
Could you describe the setup in the system's firmware (BIOS), or take a screenshot of the screens? We should know what the setup is for booting, if CSM is enabled, etc. ** Changed in: shim-signed (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1747889 Title: (Acer Aspire V3-372) System not booting after update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1747889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs