Install Ubuntu Release Upgrader on an older system.
Export block devices list as JSON and parse using jq utility.
Configure a lightweight compressed cache for swap pages to mitigate the performance impact of swapping on your desktop.
Configure compressed swap using zram device at system boot.
Take advantage of compressed RAM based block devices to create temporary filesystems and swap disks.
Use the native IPsec stack to connect multiple networks over the internet.
Fix multipath daemon error about missing path when using VirtualBox.
Install Kubernetes on LXD. Essential information to just get you started.