McGarrah Technical Blog

Dell Wyse 3040 CMOS CR2032 Battery Replacement

· 5 min read
Replacing the proprietary CMOS battery connector on Dell Wyse 3040 thin clients using heat shrink tubing and standard CR2032 cells — $23 for nine units versus $90 for pre-made replacements.

Sharing file systems between WSLv2 instances

· 3 min read
Sharing 500GB of ML models and repos between WSL2 Ubuntu 22.04 and 24.04 instances using bind mounts in /etc/fstab without duplicating data.

Hard Drives for the Homelabs

· 1 min read
Storage has hit a penny per GB. A 20TB renewed drive for $200 and a 20TB USB-C enclosure for $220 make the math work for a Ceph offsite backup strategy.

Backlog of Posts

· 4 min read
A mid-2024 status dump of unpublished drafts and stalled projects: site-to-site VPN, LAG/LACP, PiKVM, Ceph performance, Kubernetes, and a growing media server backlog.

Posts