As a seasoned administrator, staying on top of updates is crucial for maintaining the reliability and security of your Proxmox cluster. In this expert post, we will walk you through the command line interface (CLI) to update your Proxmox nodes efficiently.

Step 1: Logging in
Start by SSHing into your Proxmox node or accessing it directly from the console if you prefer a graphical interface.

Step 2: Updating installed packages
To keep only the installed packages up-to-date, execute the following command:

apt-get update && apt-get upgrade

Step 3: Upgrading the entire node
If you want to update the entire node, including system upgrades and package dependencies, use this command:

apt-get update && apt-get dist-upgrade

Step 4: Rebooting if necessary
After completing the upgrades, check for any reboot requirements. Most kernel updates or critical dependency changes will prompt you to reboot the node.

Conclusion:
Mastering Proxmox updates through CLI is an essential skill for administrators. By following these steps, you’ll be well-equipped to keep your Proxmox nodes up-to-date and secure.