I'm trying to install guest additions for Ubuntu 7.04 (yes, you read that correctly) with a modern Arch Linux host.
Mounting the guest additions iso, I get
Unfortunately, I seemingly have no virtualbox packages available. Maybe this is related to my apt repositories, which are now pointing to old-releases.ubuntu.com
Online, I also found sources suggesting to run sudo rcvboxadd setup, to no avail:
I am glad for any suggestions concerning the installation of guest additions for such an old guest. The host system is Arch Linux, with VirtualBox 5.2.14-1.