No subscription
You won't receive updates for Proxmox VE out of the box until you either purchase a subscription for the node or migrate to the no-subscription repositories. The node status page show the warning:
The enterprise repository is enabled, but there is no active subscription!
Remove the enterprise repository:
rm -f /etc/apt/sources.list.d/pve-enterprise.list
Since TLS isn't available for the no-subscription repositories, we'll install the signing keys to a dedicated keyring as an additional precaution:
wget https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg -O /etc/apt/keyrings/proxmox-release-bookworm.gpg
Install the new repositories:
echo 'deb [signed-by=/etc/apt/keyrings/proxmox-release-bookworm.gpg] http://download.proxmox.com/debian/ceph-quincy bookworm no-subscription' >/etc/apt/sources.list.d/ceph.list
echo 'deb [signed-by=/etc/apt/keyrings/proxmox-release-bookworm.gpg] http://download.proxmox.com/debian/pve bookworm pve-no-subscription' >/etc/apt/sources.list.d/pve-no-subscription.list
Finally, test that there are no warnings:
apt clean
apt update
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