PVE upgrade 6.4 to 8

LGTMozart

New Member
Sep 3, 2023
13
0
1
Hi,

My PVE 6.4-15 must be upgrade to the last version 8. So I have big work...
I have to upgrade 6.4 to 7 first Upgrade 6.x to 7.0 then I will have to upgrade to 8 Upgrade 7 to 8
It seems I have to upgrade my ceph luminous to nautilus Luminous to nautilus then to octopus Nautilus to octopus

First, I don't understand what is Ceph. I don't think I use it.
When I run pve6to7, ceph is not detected.
Ceph_error02.png
Is the ceph's upgrade required?

When I run ceph osd dump | grep ^flags I have
Ceph_error01.png

On PVE I have only one node with 6 VMs. When I go mynode>Ceph, the text "Ceph is not installed on this node. Would you like to install it now?" pops-up (so it is installed on PVE but on my node?). If I try to install it I can choose the version to install (nautilus or octopus, not luminous). I want to select the octopus (15.2) version so I will not have to upgrade from nautilus. But I want to be sure I will not make a mistake: can I install this version from no one installed on my node? Even if my ceph is in luminous?


In the upgrade-how-to, it's "required" to make backups before. All my VMs are backuped on un PBS 2.4-3.
  • if the upgrade goes wrong, can I install a PVE 8 from zero then link it to my PBS to recover the VMs?
  • the PVE runs in an enterprise. What files may be backup to restore my conf?
 

About

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!