My affected system is an ASUS Zenbook UX305FA with Secure Boot turned off. Thanks for all the hints, especially comment #10. My workaround was easy: 1. In grub menu, choose an entry and edit it (key press: e). 2. Add rmmod tpm in a line before the first insmod. 3. Boot with the modified entry (key press: F10). 4. The system might ask for a confirmation, but then it boots into 19.10.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848892 Title: "error: Unknown TPM error." after upgrading to grub 2.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1848892/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
