Now, to update Proxmox to the latest versions you need a paid subscription. I don’t mind, it’s a way of supporting their business and they still allow you to download their latest version on an ISO to download.
The subscription is fairly cheap for a production site and their support, AFAIK, is fast.
I have paid subscriptions for my production servers, but I have several testing and development ones I don’t need it, but I would like to update, every once in a while, to newer versions without reinstalling. So the answer is easy: update with the Proxmox ISO.
– Download the latest Proxmox ISO – Mount it on the system as a loop fs:
mount proxmox-ve_3.3.iso /mnt -oloop
– Edit your /etc/apt/sources.list and add this line:
deb file:///mnt squeeze pve
– Update your apt:
– Do dist-upgrade:
– Comment the line you added on /etc/apt/sources.list, reboot, and you’re good to go!