0ct0pu5
/
tutorials


			
				
					
						
						
							1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889
							    <!DOCTYPE html>
    <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
      <head>
        <title>Renaming a Proxmox VE Node</title>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <meta charset="UTF-8">
        <meta name="keywords" content="How To Rename A Proxmox VE Host,How To Rename A Proxmox VE Node,Rename Proxmox Host,Rename Proxmox Node,Change Proxmox Host Name,Change Proxmox Node Name,Debian,Host,Hypervisor,Linux,Node,Proxmox,Proxmox Tutorial,Proxmox VE,Rename,VM,Home Lab,Virtual Machine,Proxmox Node,Proxmox Host,How To,Tutorial,i12bretro">
        <meta name="author" content="i12bretro">
        <meta name="description" content="Renaming a Proxmox VE Node">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
				          <link rel="icon" type="image/x-icon" href="includes/favicon.ico">
				  <script type="text/javascript" src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
				        <script type="text/javascript" src="includes/js/steps.js"></script>
        <link href="css/steps.css" rel="stylesheet" type="text/css" />
      </head>
      <body>
        <div id="gridContainer">
          <div class="topMargin"></div>
          <div id="listName" class="topMargin">
            <h1>Renaming a Proxmox VE Node</h1>
          </div>
          <div></div>
          <div id="content">
          <p>I recently upgraded my homelab Proxmox host server and wanted to repurpose my existing server to use as a testing environment. Below are the steps I used to rename the old Proxmox instance. These steps worked for me. Please let me know in the comments if you try these steps and any issues arise that I didn&#39;t have in my environment.</p>

<p><em>NOTE: Renaming a node that is part of a cluster is not recommended. These steps are intended for standalone nodes. Always make backups of important VMs before attempting to modify the Proxmox host. </em></p>

<ol>
	<li>Log into ProxMox VE, either at the console, via SSH or the web UI and launch the web shell</li>
	<li>Run the following commands, alternatively you can manually edit each file mentioned with nano or vi and replace the old hostname with the new one
	<div class="codeBlock"># set the old hostname and write to ini<br />
	echo &quot;OLD_HOSTNAME=$(hostname)&quot; &gt; ~/pmrename.ini<br />
	# set the new hostname in ini, update as needed<br />
	echo &quot;NEW_HOSTNAME=vm-dev&quot; &gt;&gt; ~/pmrename.ini<br />
	# read variables from ini<br />
	source &lt;(grep = ~/pmrename.ini)<br />
	# edit hostname file<br />
	sed -i.bak &quot;s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi&quot; /etc/hostname<br />
	# edit hosts file<br />
	sed -i.bak &quot;s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi&quot; /etc/hosts<br />
	# edit mailname if it exists<br />
	[ -e &quot;/etc/mailname&quot; ] &amp;&amp; sed -i.bak &quot;s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi&quot; /etc/mailname<br />
	# edit main.cf if it exists<br />
	[ -e &quot;/etc/postfix/main.cf&quot; ] &amp;&amp; sed -i.bak &quot;s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi&quot; /etc/postfix/main.cf<br />
	# copy config files to new node name<br />
	cp &quot;/var/lib/rrdcached/db/pve2-node/$OLD_HOSTNAME&quot; &quot;/var/lib/rrdcached/db/pve2-node/$NEW_HOSTNAME&quot; -r<br />
	cp &quot;/var/lib/rrdcached/db/pve2-storage/$OLD_HOSTNAME&quot; &quot;/var/lib/rrdcached/db/pve2-storage/$NEW_HOSTNAME&quot; -r<br />
	cp &quot;/var/lib/rrdcached/db/pve2-$OLD_HOSTNAME&quot; &quot;/var/lib/rrdcached/db/pve2-$NEW_HOSTNAME&quot; -r<br />
	# reboot<br />
	reboot now</div>
	</li>
	<li>Wait for the Proxmox host to come back up</li>
	<li>Log back in and continue with the following commands
	<div class="codeBlock"># read variables from ini<br />
	source &lt;(grep = ~/pmrename.ini)<br />
	# update storage config<br />
	sed -i.bak &quot;s/nodes $OLD_HOSTNAME/nodes $NEW_HOSTNAME/gi&quot; /etc/pve/storage.cfg<br />
	# mv vm configs<br />
	mv /etc/pve/nodes/$OLD_HOSTNAME/qemu-server/*.conf /etc/pve/nodes/$NEW_HOSTNAME/qemu-server/<br />
	# mv ct configs<br />
	mv /etc/pve/nodes/$OLD_HOSTNAME/lxc/*.conf /etc/pve/nodes/$NEW_HOSTNAME/lxc/</div>
	</li>
	<li>Test that Proxmox web UI and all VMs are working as intended</li>
</ol>

<h2>Cleaning Up</h2>

<ol>
	<li>After fully testing everything is working, run the following commands to clean up backup files
	<div class="codeBlock"># read variables from ini<br />
	source &lt;(grep = ~/pmrename.ini)<br />
	rm /etc/hostname.bak &amp;&amp; rm /etc/hosts.bak<br />
	[ -e &quot;/etc/mailname.bak&quot; ] &amp;&amp; rm /etc/mailname.bak<br />
	[ -e &quot;/etc/postfix/main.cf.bak&quot; ] &amp;&amp; rm /etc/postfix/main.cf.bak<br />
	rm /var/lib/rrdcached/db/pve2-node/$OLD_HOSTNAME -r<br />
	rm /var/lib/rrdcached/db/pve2-storage/$OLD_HOSTNAME -r<br />
	rm /var/lib/rrdcached/db/pve2-$OLD_HOSTNAME -r<br />
	rm /etc/pve/nodes/$OLD_HOSTNAME -r<br />
	rm /etc/pve/storage.cfg.bak<br />
	rm ~/pmrename.ini</div>
	</li>
</ol>

<p>Source: <a href="https://pve.proxmox.com/wiki/Renaming_a_PVE_node" target="_blank">https://pve.proxmox.com/wiki/Renaming_a_PVE_node</a></p>
          </div>
        </div>
      </body>
    </html>