fwupd/contrib/qubes/doc/uefi_capsule_update.md

UEFI capsule update

The qubes-fwupd handle the UEFI capsule update under several conditions. The fwupd uses ESRT tables to read GUID, and that causes trouble when the OS is running under a hypervisor. The Xen does not pass the ESRT tables to paravirtualized dom0, so the Qubes is not able to provide sysfs information. More information you can find it this thread:

https://patchwork.kernel.org/patch/11715901/

Requirements

Qubes OS

You need Qubes R4.1 to use the UEFI capsule update.

Hardware

Make sure that your hardware has available firmware updates in the LVFS

UEFI capsule update - downgrade

UEFI capsule updates and downgrades were tested on DELL XPS 15 9560.

sudo qubes-fwupdmgr downgrade

UEFI capsule update - update

sudo qubes-fwupdmgr update

Update process

Capsule found

ME updated

Success