I should add the following (and indeed I should have included this within my previous post).
fwupdmgr told me three devices had installable updates: Lenovo diagnostics; a Logitech wireless receiver; Intel TPM. Using @sj's method (and obtaining the device-id via `fwupdmg get- devices`) I managed to install one of diagnostics update. Upon reboot, fwupdmgr told me only one update was outstanding: the tpm one. So: the Logitech update had disappeared; and the TPM update remained uninstalled. One can see from the issue tracker for fwup that Lenovo TPM (or 'ME') updates are notorious for not installing. See: https://github.com/fwupd/firmware- lenovo/issues?q=tpm+is%3Aissue+is%3Aopen+ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1929471 Title: Shim apparently fails to run fwupd64 (hirsute regression?) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1929471/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs