Upgrading Proxmox PVE from version 5.1.x to 5.1.43 and install community repo and GPG key

UPGRADING PROXMOX PVE version 5.1 to its newer version!

This is the solution / fix if you encounter this error during 'apt-get update' The repository 'https://enterprise.proxmox.com/debian/pve stretch Release' does not have a Release file. The steps below will upgrade your Proxmox PVE, mine was updated: from: pve-manager/5.1-35/722cc488 (running kernel: 4.13.4-1-pve) to:     pve-manager/5.1-43/bdb08029 (running kernel: 4.13.13-5-pve) STEP 1:  Remove subscription REPO cd /etc/apt/sources.list.d/ rm pve-enterprise.list STEP 2:  Add regular REPO echo "deb http://download.proxmox.com/debian/pve stretch pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list STEP 3:  Download and Install GPG Key wget http://download.proxmox.com/debian/proxmox-ve-release-5.x.gpg -O /etc/apt/trusted.gpg.d/proxmox-ve-release-5.x.gpg

After the pre-requisite steps above you can then execute the following standard distribution upgrade:

apt-get update

apt-get dist-upgrade

OPTIONAL (clean up - to free up disk space):

apt-get purge

apt-get clean

apt-get autoclean

Checking you new PVE version using:

pveversion