[SOLVED] Cluster nodes are up to date but do not use same kernel version

Damien_vo

New Member
Oct 10, 2018
2
0
1
France
Hello :)

I think, the title is straightforward.

I have just done an update on four cluster nodes, they all are up to date but the running kernels are not the same.

Code:
node1:~# pveversion -v
proxmox-ve: 5.4-1 (running kernel: 4.15.17-1-pve)
pve-manager: 5.4-3 (running version: 5.4-3/0a6eaa62)
pve-kernel-4.15: 5.3-3
pve-kernel-4.15.18-12-pve: 4.15.18-35
pve-kernel-4.15.18-11-pve: 4.15.18-34
pve-kernel-4.15.18-9-pve: 4.15.18-30
pve-kernel-4.15.17-1-pve: 4.15.17-9

node2:~# pveversion -v
proxmox-ve: 5.4-1 (running kernel: 4.15.18-11-pve)
pve-manager: 5.4-3 (running version: 5.4-3/0a6eaa62)
pve-kernel-4.15: 5.3-3
pve-kernel-4.15.18-12-pve: 4.15.18-35
pve-kernel-4.15.18-11-pve: 4.15.18-34
pve-kernel-4.15.18-9-pve: 4.15.18-30
pve-kernel-4.15.17-1-pve: 4.15.17-9

node3:~# pveversion -v
proxmox-ve: 5.4-1 (running kernel: 4.15.18-9-pve)
pve-manager: 5.4-3 (running version: 5.4-3/0a6eaa62)
pve-kernel-4.15: 5.3-3
pve-kernel-4.15.18-12-pve: 4.15.18-35
pve-kernel-4.15.18-11-pve: 4.15.18-34
pve-kernel-4.15.18-9-pve: 4.15.18-30
pve-kernel-4.15.17-1-pve: 4.15.17-9

node4:~# pveversion -v
proxmox-ve: 5.4-1 (running kernel: 4.15.17-1-pve)
pve-manager: 5.4-3 (running version: 5.4-3/0a6eaa62)
pve-kernel-4.15: 5.3-3
pve-kernel-4.15.18-12-pve: 4.15.18-35
pve-kernel-4.15.18-11-pve: 4.15.18-34
pve-kernel-4.15.18-9-pve: 4.15.18-30
pve-kernel-4.15.17-1-pve: 4.15.17-9

I want the nodes to take the last kernel available.
Am I forced to reboot them ?
 
Am I forced to reboot them ?

In general yes, there are some ways of live patching it, but it works not always and mostly provided by external services, not us.
Normally, you free up a node (migrate all important VMs and CTs away to another one) and then reboot it, do this for all nodes in a cluster and you can achieve a downtime-free kernel upgrade (at least with VMs).
 
  • Like
Reactions: Damien_vo

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!