Actually, They Mostly Fly

I have written in glowing terms in the past about Sherwood Forest Faire, and I’m still a big fan now, twelve(!) years from my first visit. But I’d like to tell you about (and show you) a specific event within Sherwood that merits more attention: the Hawk Walk.

Retina Scan

Right-20140625@155858Left-20140625@155918More medical imaging. I present for your consideration the insides of my eyeballs. (Click thumbnails to view original full-size images.) The images shown were taken on Jun 25, 2014 using an Optomap wide-field retina scanner, probably the 200Dx model.

So now I have plausible deniability for anything that I’m alleged to have done on a system using retina scans for biometric authentication…

Ubuntu 12.04.1 LTS: Recovering from a Broken libc

Note: Reasonably heavy UNIX-geekery ahead. Mostly Linux-specific, somewhat Debian-specific and a little bit Ubuntu-specific. Skip if that isn’t your cup of ichor.

I recently did something incredibly ill-considered while logged in (as root, natch) to my Ubuntu server box at home. In essence, I told the package manager to uninstall libc.

On a scale from good to bad, this is bad.

Now, I could have booted up from a rescue disk and fixed it. I could have re-installed easily enough (using the trick where you just keep your existing partitions and don’t format them — though this would have inevitably led to some fallout as various config files and customizations got clobbered). Heck, I even had a reasonably recent backup at hand. None of these sounded especially fun, mostly because the machine was in a place where it’s a hassle to stick a head on it. I had three things working in my favor: an open root-privileged shell prompt, Internet connectivity and my native cunning.

Read on after the jump for the full tale.

Dem Bones

The foot-bone’s connected to the… whole lot of other stuff, it turns out. I sprained my ankle recently (at fair, whilst doing something completely stupid reasonable and prudent), and got some nifty digital X-rays to make sure nothing was broken. (Nothing was.) Original-resolution lossless PNG also available (1.5MB download). Original DICOM data files on request.