Proxmox is a fine open-source product and version 4 is recently it’s newest version.
If you’re using Proxmox in a production set-up consider purchasing a Subscription at: http://proxmox.com/en/proxmox-ve/pricing.
If you’re only using it personally like I do I’d like to get rid of alle annoyances like not being able to update/upgrade and the pop-up once you log-in.
After installing Proxmox 4 you’ll probably encounter a popup with the following:
You do not have a valid subscription for this server. Please visit www.proxmox.com to get a list of available options.
If you don’t have a subscription this pop-up can be quite annoying so here’s how to remove it.
sed -i.bak "s/data.status !== 'Active'/false/g" /usr/share/pve-manager/ext4/pvemanagerlib.js
PVE No Subscription list
Having removed this pop-up won’t mean you can upgrade your PVE instance.
Here’s how to use the PVE No Subscription list:
echo "deb http://download.proxmox.com/debian jessie pve-no-subscription" > /etc/apt/sources.list.d/pve-no-subscription.list mv -v /etc/apt/sources.list.d/pve-enterprise.list ~/.
Now apply those upgrades
apt-get update apt-get upgrade