https://linuxize.com/post/how-to-add-swap-space-on-ubuntu-18-04/   Swap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of RAM, inactive pages are moved from the RAM to the swap space. Swap space can take the form of either a dedicated swap partition or a swap … Meer lezen over How To Add Swap Space on Ubuntu 18.04