Sunday 23rd August 2009 - 13:59:37

Chip

It's a nice warm day today. The kids are out terrorising each other in the yard. I cut some pine earlier for another project and Liam is riding around on his bike (his truck) with the pine and a selection of tools in the back. I'm in the shed resurrecting an old 1U server for my fermentation controller project.

 

I've chosen this old dual P3 server because it pulls under 100 Watts - but still has enterprise server goodies, SCSI hot-swap, ECC RAM (because you need that in a fridge controller). The other reason I chose this server (an NEC 8500 120ra-1) is because it has serial and parallel facilities. The parallel was actually a nice find - I was going to use a USB converter, but I found an entry in the BIOS for parallel configuration. So I took a closer look and found a weird header on the mainboard - I plugged in a DB-25 ribbon cable and tested it with a live CD. Good news! The parallel header-ribbon to DB-25 actually came as surplus electronics in my electronics class in highschool! I was lucky that I still had it.

 

I replaced the CD with a DVD drive and attempted to install CentOS 5.2. Unfortunately the DVD drive is bad, so I downloaded the net install cd image for Centos 5.3 and re-installed the original CD-ROM drive. Looks like the net install is going to take a few hours.

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