troubleshooting - CapturedByNguyen

Upgrade PVE 8 to 9 systemd-boot ZFS rpool UEFI: the path that works

Upgrade PVE 8 to 9 on systemd-boot with a ZFS rpool and UEFI. The extra steps matter, and here's the order that gets it done cleanly.

NguyenSeptember 2, 20262 min read

Technical

Proxmox LXC out of memory tmpfs journald: fix the OOM kill

journald's tmpfs usage can OOM-kill small LXC containers. Fix it by capping journald's memory with RuntimeMaxUse and SystemMaxUse in journald.conf.

NguyenSeptember 1, 20262 min read

Technical

Deploying a Proxmox VE Worker Node on an Air-Gapped Network

Step-by-step: build an offline apt repo, transfer packages via USB, and join a PVE cluster without internet. Tested on Proxmox VE 8.

NguyenSeptember 1, 20262 min read

Technical

Can You Prevent NIC Reset During ISO/Install Start in Proxmox?

Yes, you can prevent the NIC reset when a Proxmox VM starts an ISO install. It's the bridge setting and a kernel module option. Here's the fix.

NguyenAugust 31, 20261 min read

Technical

Exclude Node from Migration Targets List: Proxmox Workaround

Proxmox shows every cluster node as a migration target by default. Here's how to exclude a node from the migration targets list using the REST API and a

NguyenAugust 30, 20261 min read

Technical

Web Browser Tab Freezing and High Memory Usage When Running Dynamic Automation Tools Alongside Proxmox VE Web GUI

Browser tab freezing and high memory usage when running dynamic automation tools alongside Proxmox VE web GUI is usually the browser, not Proxmox.

NguyenAugust 29, 20262 min read

Technical

website monitoring service: an uptime monitor that pages you for the wrong thing is worse than none

A website monitoring service that alerts on every blip will train you to ignore it. Here's the rule I use: alert on real failure only, silence is the default.

NguyenAugust 29, 20266 min read