===  Add an ISO to your proxmox installation on the server via SSH ====

\\
For example: if we have an **ubuntu-20.04.1-desktop-amd64.iso** image, we will scp the iso to the server and then:
<code bash>
cp ubuntu-20.04.1-desktop-amd64.iso /var/lib/vz/template/iso/
</code>

And now you can use this ISO to create virtual machines!