Kernel Update from 4.4 (Ayufan) on Ubuntu 20.04

[db579]

I started with Ayufan's 0.9 image (Ubuntu 18.04) - the minimal server variant. I then apt-installed ubuntu-gnome-desktop, and then upgraded the Ubuntu version through the graphical software updater to 20.04. So far so great, but I'm curious about upgrading the kernel.

Code:

$ uname -r
4.4.190-1233-rockchip-ayufan-gd3f1be0ed310

Suggests that the OS upgrade was just userland, not kernel. Am I right in thinking RockPro64 support has been fully mainlined into the Linux Kernel as off 5.8? If so is there any reason not to upgrade to it?

Basically would

Code:

$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8.13/arm64/linux-headers-5.8.13-050813-generic_5.8.13-050813.202010011235_arm64.deb
$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8.13/arm64/linux-image-unsigned-5.8.13-050813-generic_5.8.13-050813.202010011235_arm64.deb
$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8.13/arm64/linux-modules-5.8.13-050813-generic_5.8.13-050813.202010011235_arm64.deb
$ sudo apt install ./*.deb

Break my system or get me onto working mainline 5.8 kernel? (Also am I right in assuming the RockPro64 does not require a signed kernel image to boot?)