Although Proxmox is free to use to create a server that you can use to virtualize various types of resources (such as operating systems, storage, and more), every type you sign in to the web, you will receive the “No valid subscription” dialog that reads “You do not have a valid subscription for this server” message.
The message is tailored to enterprises as the subscription model is how the company makes revenue while keeping the virtualization hypervisor free.
You can always click the “OK” button and continue managing the server. However, if you don’t want to see the message again, there’s a workaround to edit the system settings to disable the “No valid subscription” warning that works on the latest version of Proxmox.
This guide will teach you the steps to remove the invalid subscription message that appears every time you sign in to the Proxmox server through the browser.
Disable ‘No valid subscription’ notice on Proxmox
To turn off the invalid subscription warning when opening Proxmox, use these steps:
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Open Proxmox server (web).
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Select the server from the left navigation pane.
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Click on Shell.
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Type the following command to disable the subscription message and press Enter:
sed -Ezi.bak "s/(Ext.Msg.show\(\{\s+title: gettext\('No valid sub)/void\(\{ \/\/\1/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service
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Close the console.
Once you complete the steps, the “You do not have a valid subscription for this server” message will no longer appear when logging in to the Proxmox server. However, if an update brings back the message, you will have to run the command again.
When running the command from the web, the console will disconnect and reconnect after a few moments.