We have set up an KERN archive mirror sponsored by ASTRON.
To enable the mirror on Ubuntu 22.04 please run:
$ sudo apt-get install software-properties-common
$ curl -L https://archive.kernsuite.info/kern.key | sudo apt-key add -
$ sudo add-apt-repository -s https://archive.kernsuite.info/kernsuite/kern-9/ubuntu
$ sudo apt-add-repository multiverse
$ sudo apt-add-repository restricted
$ sudo apt-get update
Lets us know when you experience any issues in our issue tracker.