Unable to update device firmware: fwupdx64.efi cannot be found
I can’t remember ever having an issue with updating the firmware of my XPS 13 7390 on Ubuntu. Today, however, Ubuntu 21.10 (Impish Indri) decided to throw an ugly-looking warning in my face after proudly proclaiming that it had a new device firmware update ready to be installed. To add insult to injury, Ubuntu told me to reboot the system to install the new firmware, after GNOME Software correctly informed me that it had failed.