you might want to verify its integrity by comparing its SHA-256 checksum available in file:
//www.virtualbox.org/download/hashes/${LatestVirtualBoxVersion}/SHA256SUMS
using
sha256sum -c --ignore-missing SHA256SUMS
Then, we install it as follows:
sudo VBoxManage extpack install --replace Oracle_VM_VirtualBox_Extension_Pack-${LatestVirtualBoxVersion}.vbox-extpack
To verify if it has been successfully installed, we may list the installed extension packs:
VBoxManage list extpacks
To uninstall the extension pack:
sudo VBoxManage extpack uninstall "Oracle VM VirtualBox Extension Pack"
