Ubuntu 22.04 VirtualBox Guest Additions

Before I can write up How To Install Elastic Agent On Ubuntu 22.04, I need to create a virtual machine running Ubuntu 22.04 and install Elastic Agent as I don’t want to take my live server offline if I make any mistakes.

I installed the version without HWE, updated the installer to the latest version and chose the Ubuntu Server (minimized) - I had chosen the English (UK) localisation so surely that should have been “minimised”?

Then:

sudo apt update
sudo apt install bzip2
sudo apt dist-upgrade -y
sudo reboot

After logging back in:

sudo mount /dev/cdrom /media
cd /media
sudo ./VBoxLinuxAdditions.run
sudo reboot

Worked for me.