not a real bug just a headup/hint, cause the box runs well with it.
I see this in my log with dmesg:
...
[ 0.024310] Kernel command line: root=/dev/ram0 rdinit=/init usbcore.autosuspend=-1 BOOT_IMAGE=/KERNEL boot=UUID=1BD6-475D disk=UUID=d90fcae6-4a95-436b-807c-b61b8355cb56 i915.enable_guc=2 quiet
[ 0.024354] Setting dangerous option i915.enable_guc - tainting kernel
[ 0.024363] Unknown kernel command line parameters "BOOT_IMAGE=/KERNEL boot=UUID=1BD6-475D disk=UUID=d90fcae6-4a95-436b-807c-b61b8355cb56", will be passed to user space.
...
