Migrating KVMs and OpenVZ from Proxmox 3 to Proxmox 8

Not open for further replies.


New Member
Oct 2, 2023
Hello forumers,

I am working on the migration from old Proxmox 3 VE to the newest version. As I know one of the simplest ways to move KVM from old environment is using backup and restore options:
vzdump < VM_ID > --dumpdir /var/lib/vz/dump/ --compress gzip --mode stop --node < NODE_NAME >
In case of containers it should be converted from OpenVZ to LXC because OpenVZ isn't available since Proxmox VE 4.x series.

But backup and restore functionality inside of proxmox even when moving to a new host machine restores all original settings and OS version. Surely, OS version is too outdated on it (Debian 7). There is any way how can I restore all staff of VMs to new VMs based on the latest OS version (Debian 12) on my new Proxmox 8 server?
Posted already here, so closing this one.
Not open for further replies.


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!