I spent an embarrassing amount of time today diagnosing what appeared to be a Heisenbug in Python. I was debugging a method, and each time I added a debug statement to peek at a value, the value itself would be returned and then… just disappear. It was as if observation changed the results. First the… Read More
I recently upgraded from Fedora 20 to Fedora 23, and I was shocked to find how much Gnome usability took a giant leap backwards. My useful shell extensions were no longer functioning, and I couldn’t figure out how to access the icons in the notification area, since it is now hidden by default. Menus have… Read More
WebEx can be a real pain when it comes to cross-platform use. The Windows installer usually takes care of business, and the Mac installer will usually work with only minor headaches. On the other hand, the Linux installer only installs the WebEx components, without the dependencies, so you end up with a WebEx that can… Read More
I’ve recently been hacking on the mighty Linksys WRT-1900AC router. In this blog post I cover the installation of a permanent TTL-serial port on the unit, and the construction of a 3.3v USB-TTL serial adapter. It took a couple of years for the manufacturer to make good on their promise to provide open source developers… Read More
Here is the process for modifying libvirt-compatible disk images for use in OpenStack. These images are used to boot virtual machines, or in the case of TripleO the images are used to build OpenStack nodes. When I searched for information on libguestfs for Red Hat Enterprise Linux I found a lot of obsolete information. For… Read More
