In Proxmox we can enable updates via apt without a paid license.
Establish a shell on your Proxmox server. Replace
pve with the hostname or IP address of your Proxmox server.
I’m going to use vi to edit files, but nano is a better choice if you aren’t familiar with a modal editor like vi. I normally use vim, but only vi is available until you get apt working and have the ability to install it.
# pve-no-subscription repository provided by proxmox.com, not recommended for production use deb http://download.proxmox.com/debian/pve buster pve-no-subscription
Comment out the single entry there.
#deb https://enterprise.proxmox.com/debian/pve buster pve-enterprise
Run the following commands.
wget http://download.proxmox.com/debian/proxmox-ve-release-6.x.gpg -O /etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg sha512sum /etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg apt update
That’s it. You can update and install what you wish.
apt update apt install vim curl -y
Perform a distribution upgrade if you wish.