This afternoon the primary Proxmox hypervisor in the homelab refused to boot. Several VMs went offline. Hours of recovery later, every service was back up and no VM data had been lost. This post is the writeup of what failed, what saved the data, and the three hardening layers that have been permanently added so that the next incident in this family does not reach the "blind boot from a serial console" stage.
tag: #proxmox
4 posts
When CVE-2026-31431 dropped on April 29 with a public proof-of-concept and no vendor patches available, every Linux machine in the homelab was affected. Two weeks later the OpenSSH GSSAPIKeyExchange flaw shipped as DSA-6204-1 and the question arose again. This post is the short writeup of how Ansible turned both incidents into routine work.
2 months ago
The Art of Reading Support Files - Systematic Linux Diagnostics Before You Reach for strace
Production debugging is not a data-gathering problem but a reading problem, because most systems have already written down what is broken if you know where to look.
5 months ago
Installing Proxmox on a Dell PowerEdge VRTX
Proxmox on VRTX - fix the megaraid_sas hang.