i have same problem on Thinkpad X1 Carbon Gen 6 using Fedora 35 (latest) when i disable Secureboot and run fwupdmgr upgrade and reboot then it waits for a minute and then reboot into grub again.
only ME update is failing for me, i have sent debug info from fwupdmgr. I managed to upgrade bios using fwupdmgr update <Device ID> -- 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