apt-get dist-upgradeE: Failed to fetch https://enterprise.proxmox.com/debian/pve/dists/buster/InRelease 401 Unauthorized [IP: 188.8.131.52 443]
E: The repository ‘https://enterprise.proxmox.com/debian/pve buster InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
cd /etc/apt/sources.list.d/ cp pve-enterprise.list pve-no-subscription.list nano pve-enterprise.list
Comment out the first line and save:
#deb https://enterprise.proxmox.com/debian/pve buster pve-enterprise
change deb https://enterprise.proxmox.com/debian/pve buster pve-enterprise
to deb http://download.proxmox.com/debian/pve buster pve-no-subscription
Upgrade should work now.
EDIT: Found a nicer way to do it: https://gist.github.com/whiskerz007/53c6aa5d624154bacbbc54880e1e3b2a
This script will not remove nagging popup with the newer versions of Proxmox, works up to 5.3.x version.
For a newer versions use this command:
Make sure to clear your cookies and cache for this method to work.