Renaming a Node - Revision history

Tinker: Created page with "[https://forum.proxmox.com/threads/changing-name-of-nodes-in-cluster.136623/#post-707583 Original Source] PVE Node Rename Test{{!}}Working? Sample Stopped all VMs [ Also Moved all important VM to another Node for my peace of mind] Actually... Just back them up. They're gonna bork anyhow... From the node terminal which I want to rename, I ran these and made changes for '''new_hostname''' * cp -r /etc/pve /root/pve_backup
2024-10-26T16:04:35Z

Created page with "[https://forum.proxmox.com/threads/changing-name-of-nodes-in-cluster.136623/#post-707583 Original Source] [[PVE Node Rename Test{{!}}Working? Sample]] Stopped all VMs [ Also Moved all important VM to another Node for my peace of mind] Actually... Just back them up. They're gonna bork anyhow... From the node terminal which I want to rename, I ran these and made changes for '''new_hostname''' * <span style="color: rgb(0, 128, 128);">cp -r /etc/pve /root/pve_backup</spa..."

New page
[https://forum.proxmox.com/threads/changing-name-of-nodes-in-cluster.136623/#post-707583 Original Source]

[[PVE Node Rename Test{{!}}Working? Sample]]

Stopped all VMs [ Also Moved all important VM to another Node for my peace of mind]

Actually... Just back them up. They're gonna bork anyhow...

From the node terminal which I want to rename, I ran these and made changes for '''new_hostname'''
* <span style="color: rgb(0, 128, 128);">cp -r /etc/pve /root/pve_backup</span>
** <span style="color: rgb(0, 128, 128);">Backing up the entire pve directory?</span>
* vi /etc/hosts /etc/hostname /etc/mailname /etc/postfix/main.cf
** Change all occurrences of existing '''old_hostname''' to '''new_hostname'''
* hostnamectl set-hostname '''new_hostname'''<br>
* vi /etc/pve/corosync.conf
Change'''old_hostname''' to '''new_hostname'''
increase the '''config_version''' from (add 1 to whatever is there currently)
* <span style="color: rgb(0, 128, 0);">pvecm updatecerts</span>
** <span style="color: rgb(0, 128, 0);">This is only really valid if you're using the built-in certs...</span>
* systemctl restart pveproxy<br>
* systemctl restart pvedaemon
* cd /etc/pve/nodes
* <span style="color: rgb(0, 128, 128);">cp -r /etc/pve/nodes/'''old_hostname'''/ /root/oldconfig</span>
** <span style="color: rgb(0, 128, 128);">why back it up like this?</span>
* <span style="color: rgb(0, 128, 0);">cp /etc/pve/nodes/'''old_hostname'''/lxc/* /etc/pve/nodes/'''new_hostname'''/lxc</span>
* <span style="color: rgb(0, 128, 0);">cp /etc/pve/nodes/'''old_hostname'''/qemu-server/* /etc/pve/nodes/'''new_hostname'''/qemu-server</span>
** <span style="color: rgb(0, 128, 0);">These last two seem to be trying to repeat something already done (probably by one of the above restarts...)</span>
* rm -rf /etc/pve/nodes/'''old_hostname'''
* cd /var/lib/rrdcached/db/pve2-node/
* cp -r '''old_hostname''' '''new_hostname'''
* cd /var/lib/rrdcached/db/pve2-storage/
* cp -r '''old_hostname''' '''new_hostname'''
* reboot
* <span style="color: rgb(0, 128, 0);">After restart I also changed my storage settings as well</span>
<span style="color: rgb(0, 128, 0);">vi /etc/pve/storage.cfg</span>
* <span style="color: rgb(0, 128, 0);">Not sure what changes you did...</span>

<span style="color: rgb(128, 0, 0);">Unfortunately, while this does indeed rename the node, it kinda borks any existing VMs & containers as well as extra local storage (volume groups, thinpools, directories, possibly ZFS) created in the UI. The data isn't gone, just the mounts for these things...</span>

For now:
* go to '''local-lvm''' & delete the content of '''VM Disks''' & '''CT Volumes'''
* reconstruct your extra local storage.
* Restore your VMs & CTs from backup...

<span style="color: rgb(128, 0, 0);">More research is needed...</span>

Note: A minor thing, but it'll mess with you... Any Web UI sessions open to another node will still show the old name as a (broken) node until cleared from your browsers cache. Just closing the tab & then opening it fresh works...