upgrade from 5.x to 6.x

[de Thysebaert]

Hi, I know is late but I have a cluster with 3 nodes to upgrade to v6 version form last v5 version.
I'm followi the tutorial here https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0#In-place_upgrade

I have to update first all package in the v5 version
than upgrade on each nodes the corosync version to v3
than chnage the repository to upgrade to proxmox v6

My question is
After the corosyns upgrade to v3 , restarted the corosync on all nodes and verifyed the healthy of the cluster may I add a new nodes in the cluster with a v6 version of proxmox and migrate somes critical VM on this new node before uprade the other nodes ?

Thx

 

[spirit]

My question is
After the corosyns upgrade to v3 , restarted the corosync on all nodes and verifyed the healthy of the cluster may I add a new nodes in the cluster with a v6 version of proxmox and migrate somes critical VM on this new node before uprade the other nodes ?

yes, sure, no problem.

 

[de Thysebaert]

Hi,
Thanks for your response.
Corosync was succefuly updated to V3 et status is fine.
I'll try to add a new server (proxmox-ve: 6.4-1 (running kernel: 5.4.157-1-pve) to the cluster running proxmox-ve: 5.4-2 (running kernel: 4.15.18-26-pve)
In my case I have public IP on on interface with the GIU (with Lest'encrypt certificate activated) and I have some vlans on the second interface on private network
in /etc/hosts on ALL server I have an FQDN name linked to the public IP and an short name linked to the private IP
I can ping all nodes with short name responding with the correct IP
I can SSH all nodes

when I try to add the new node with private IP or short name I get ...

Please enter superuser (root) password for '172.16.7': ****************** Establishing API connection with host '172.16.7' 500 Can't connect to 172.16.7:8006 (hostname verification failed)

when I try to add thenew node with public FQDN name I get :

Establishing API connection with host 'prox07.**************' Login succeeded. check cluster join API version No cluster network links passed explicitly, fallback to local node IP '172.16.0.8' Request addition of this node An error occured on the cluster node: Parameter verification failed. ! property is not defined in schema and the schema does not allow additional properties Cluster join aborted!

any ideas ?

 

[de Thysebaert]

Hi
I read some post and It's seams that adding a new node in V6 to a cluster is not possible.
in a post

https://forum.proxmox.com/threads/cant-add-new-node-to-cluster-error400.56960/

And also We only really support PVE 5 and 6 nodes coexisting during the upgrade of a whole cluster, and then the cluster need to be formed before starting the upgrade. So existing are possible, but new ones not during that.