Maybe you can install it this way: sudo apt --purge remove virtualbox-dkms sudo apt install http://de.archive.ubuntu.com/ubuntu/pool/multiverse/v/virtualbox/virtualbox-dkms_6.1.10-dfsg-1~ubuntu1.20.04.1_amd64.deb Maybe you can fix the whole issue this way: sudo apt clean sudo apt update sudo dpkg --configure -a sudo apt install --fix-broken sudo apt full-upgrade