How-To use fwupd

As one cannot use fwupd on Qubes OS to update firmwares this is a quick How-To for using fwupd on Grml for future me.

• boot into Grml.
• mkdir /efi ; mount /boot/efi to /efi or set OverrideESPMountPoint=/boot/efi/EFI if you mount to the usual path.
• apt update ; apt install fwupd fwupd-amd64-signed udisks2 policykit-1
• fwupdmgr get-devices
• fwupdmgr refresh
• fwupdmgr get-updates
• fwupdmgr update
• reboot into Qubes OS.