> What would be the easier way ? I did:
# curl https://www.virtualbox.org/download/oracle_vbox_2016.asc | gpg --dearmor > /usr/share/keyrings/virtualbox-keyring.gpg $ sudoedit /etc/apt/sources.list.d/virtualbox.sources And filled the file virtualbox.sources with: Types: deb URIs: https://download.virtualbox.org/virtualbox/debian Suites: bullseye Architectures: amd64 Components: contrib non-free Signed-By: /usr/share/keyrings/virtualbox-keyring.gpg I found help on [1] and [2]. 1. https://wiki.debian.org/DebianRepository/UseThirdParty 2. https://unix.stackexchange.com/questions/332672/how-to-add-a-third-party-repo-and-key-in-debian/582853#582853 -- Marcelo