Ubuntu 20.04 – Installing Linux Kernel 5.8

With the new linux kernel out, Linux Kernel 5.8 to be precise, I thought I would give it a try. I had read online that Kernel 5.7 could fix the brightness issue on HP Envy laptops so the release timing for 5.8 couldn’t have been any better.

For Ubuntu, you should grab the kernel files from


Download these 4 files with curl or wget:

Linux Headers - All

Linux Headers - Generic

Linux modules - Generic

Linux Image - Generic

Install the downloaded files:

sudo dpkg -i *.deb


Once the system is up and running, check the kernel version with:

uname -r

Note: If you have secure boot enabled, you will have to sign the kernel for Secure Boot. If you do not do that, you will end up looking at the following:

vmlinuz-5.8.0-050800-generic has invalid signature

Ubuntu will not boot in this scenario but you can boot it from Grub with the advanced options by selecting the older version of kernel. Once logged in, sign the kernel and use it instead.

I will write up a post on signing kernel files shortly.

2 thoughts on “Ubuntu 20.04 – Installing Linux Kernel 5.8

    1. Not sure what you mean by incomplete but you need to relax a bit and not be ridiculous yourself and look for another post that I made related to this post. Thanks for visiting the blog.

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