This article will show to use the most up to date ceph repositories in Proxmox.

The default ceph packages in the Proxmox repos are Ceph v12, and are out of date. It is recommended to use the same version of Ceph on the Proxmox as the external cluster

This applies to using Proxmox with an external Ceph cluster.

Reference: https://pve.proxmox.com/wiki/Package_Repositories

• Ceph Cluster Configured
• Proxmox Environment

On each proxmox node create a apt.list file

echo "deb http://download.proxmox.com/debian/ceph-octopus buster main" > /etc/apt/sources.list.d/ceph.list

echo "deb http://download.proxmox.com/debian/ceph-octopus buster main" > /etc/apt/sources.list.d/ceph.list