How to upgrade Proxmox 7 to Proxmox 8

How to upgrade Proxmox 7 to Proxmox 8
Proxmox VE (Proxmox Virtual Environment) is an open-source server virtualization management solution allowing users to manage virtual machines, such as Windows or Linux machines and Linux containers. It’s based on the Debian Linux distribution and combines two virtualization technologies, KVM (Kernel-based Virtual Machine) and LXC (Linux Containers), managed through a web-based interface.
The launch of Proxmox VE 8.0 marks a significant milestone in the evolution of open-source virtualization software. The bedrock of this release is Debian Bookworm, a name that has become synonymous with reliability and quality.
You can upgrade from 7 to 8, regardless of your Proxmox VE subscription status.
Prerequisites:
- Update to the latest version of Proxmox VE 7.4 on all nodes. You can do that with:
apt-get update && apt-get upgrade -y
-If you have a hyper-converged Ceph, upgrade it to Ceph 17.2 Quincy before starting the Proxmox VE upgrade to 8.0.
- Ensure reliable access to the node.
- Ensure you have a valid and tested backup of all VMs and CTs.
- Ensure at least 5 GB free disk space on the root mount point.
- Check known upgrade issues.
- Use the pve7to8 checklist script: pve7to8 --full
- Update all Debian and Proxmox VE repository entries to Bookworm with the following command:
sed -i 's/bullseye/bookworm/g' /etc/apt/sources.list
- Refresh the repositories’ package index with
apt update
- upgrade the system to Debian Bookworm and Proxmox VE 8.0: Start the upgrade process with:
apt dist-upgrade
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[@gorillaau]

Nice run down. I had this playing in the background while doing my first PVE upgrade. It seems to have been flawless. I did have the Upgrade from 7 to 8 wiki page open at the same time. I was kind of enjoying the process, I wish I had some more nodes to upgrade. :)

[@Liv4IT]

Cool, thanks!😉

[@JamesHice]

how can you upgrade the turnkey appliances? so far my searching hasn't come up with a good process

[@Liv4IT]

sudo apt-get update sudo apt-get upgrade sudo turnkey-upgrade The turnkey-upgrade command may prompt you with instructions or questions during the upgrade process. Follow the on-screen instructions . Then reboot

[@JamesHice]

Thanks! I don't know if the container I was looking to upgrade has a new major turnkey version upgrade yet (bullseye ->bookworm for the jellyfin server)