Big problem with cluster configuration or not ?

[Daniel G. Prez]

Hi, english isn't my lenguaje, please forgive my errors.
I have a Proxmox with many VM running, this Server was installed with a number IP xxx, but in some time i changed this IP address only change in /etc/network/interface. I did not know that I had to change also in other files, but my server always still working well.
Last weekend i wanted to add other server and setup my proxmox as a cluster and just put "pvecm create xxx" and i receive an error message. Now my proxmox is working but a can't do backup of my VM why i have permissions error and i wanted to reboot another VM and isn't working with error 500 permission etc.
I was changing other configuration files but there are one file (/etc/pve/corolync.conf) i can't change for permissions error, this file have 600 permision and i am root.
Now i am afraid to lose my VM with old files and a don't know what i do with my proxmox.
I have 2 options i think, first, simply reboot the proxmox and pray to start my VM, or maybe change the IP address to my first IP and pray to the proxmox start all the VM.
any other suggestions ?

 

[dcsapak]

you have to edit your /etc/hosts so that the nodename resolves to the ip you set

 

[Daniel G. Prez]

you have to edit your /etc/hosts so that the nodename resolves to the ip you set

Thanks dcsapak, i do it, and i changed /etc/corosync/corosync.conf, /etc/hosts, /etc/issue, but i don't have permission to write in /etc/pve/corosync.conf. Now, i don't know if is better change my old IP in all files and reboot, i am scared to lose all my VM.

 

[Daniel G. Prez]

Hi, i found https://pve.proxmox.com/wiki/Editing_corosync.conf, i tried it in other PC and seems that it's ok, i'll do it tomorrow in my server. Any other suggestions ?

 

[Daniel G. Prez]

Thanks to the forum and how to's from Proxmox and God, the cluster is working again