Here’s a problem I ran into recently: I temporarily switched the root filesystem of my Fedora 14 install from RAID-5 to non-RAID. After I received the new SSD drives, I switched it to RAID-1 but the dracut boot sequence could not find the RAID-1 array and mount the root filesystem, ending in the errors ‘Can’t…
nut 2.6.0 not working with USB CyberPower System UPS, fixed in trunk
Have a USB-attached CyberPower System UPS but can’t get it to work with Network UPS Tools aka nut 2.6.0 (such as from the Fedora 14 or 15 rpms)? See the link to the rpms below I built. The errors you might see (especially when running usbhid-ups -D -D -D) include “could not connect to ups”,…
Hacking the Neato XV-11 robotic vacuum cleaner
Have a Neato XV-11 robotic vacuum cleaner with an intriguing USB port? Check out Hash’s post at the Random Workshop about connecting to the XV-11’s built-in serial subsystem via USB to send and receive commands and data from the vacuum. I’m using a Linux box and minicom. 🙂 Now I just need a miniature…
Fedora 12 to 14 Upgrade
I upgraded Fedora 12 to Fedora 14 over the weekend using PreUpgrade for the first time. (I tried a direct yum distro-sync upgrade first but it got stuck in infinite dependency loops.) Overall I was impressed with the download size reduction and the install speed after rebooting the system for the anaconda installer to apply the…
Chevy Volt test drive
At the Chevy Volt test drive, waiting in line…
Zero Energy Casita in Fort Worth
Inhabit posted a story about a net-zero energy small house (1,051 sq ft) built recently in Fort Worth: Zero Energy Casita in Texas Opens to the Public | Inhabitat – Green Design Will Save the World.
Our Home Efficiency Improvements
Lisa and I recently went on the Austin Cool House Tour co-sponsored by the Texas Solar Energy Society and Austin Energy Green Building. We realized the efficiency retrofits to our home were pretty similar to what we saw on the tour, so for fun I thought I’d write up the green feature list of our…
DNS partially break under Fedora 12 recently?
Did DNS partially break under Fedora 12 32-bit or x64 on your machine recently? It was the strangest thing… DNS problems started for me last week, even though I had not done any software updates since the beginning of April. Machines using my caching nameserver would be fine, but some programs running locally would fail…
When Software Kills…
Buggy software played a part in radiation overdoses given to some cancer patients, leading to deaths. The Radiation Boom – Radiation Offers New Cures, and Ways to Do Harm – Series – NYTimes.com.
Speaking in September
I’ll be speaking at two game development conferences during September: CEDEC 2009 in Japan and GDC Austin in Texas. Details and links follow. CEDEC 2009 – CESA Developers Conference 9/1 – 9/3 in Yokohama, Japan Handling Code and Assets for Huge Projects Using State-of-the-Art SCM What I Have Learnt From Japan (panel) – Tuesday 9/1,…