Skip to main content

Alpha testing, Day 2: A new kernel, new problems

Got up this morning and checked to see if rhea was still okay after its upgrade. It was still operational and reporting that about 66 or so new upgrades were ready to drop in, including an upgrade to the kernel (2.6.24-12-generic). So I let all 66 install, rebooted, and low and behold I had no sound. So I rebooted back to the prior kernel (2.6.24-11-generic) and sound worked again.


So I rebooted back into 2.6.24-12-generic, and looked for sound and snd entries in dmesg. Sure enough all the sound devices (drivers) had 'unknown symbols' (lots of them), indicating the kernel hadn't been configured properly before it was built. Oh, well. The -11 kernel worked, so I figured I'd just go and comment out the -12 entries in /boot/grub/menu.lst. No big deal, right?


When I tried to run 'sudo vi menu.lst' I got a failure in sudo: 'unable to resolve host rhea'. I checked in /etc/hosts, and sure enough the 127 entries are missing rhea as an entry. So, how can I gain rootly powers when sudo seems broken? Turns out that gksudo still worked, so I use that to fire up gedit and edit the hosts file. Then I can use sudo to edit menu.lst. The sudo issue was already reported (Bug #195308) back in late February.

The fun you have running new software. I'm real curious how 2.6.24-12-generic got out the door with the sound subsystem as broken as it appears.


Popular posts from this blog

cat-in-a-box channels greta garbo

So I'm sitting at my computer, when I start to notice a racket in back. I ignore it for a while until I hear a load "thump!", as if something had been dropped on the floor, followed by a lot of loud rattling. I turn around and see Lucy in the box just having a grand old time, rolling around and rattling that box a good one. I grab the GX1 and snap a few shots before she notices me and the camera, then leaps out and back into her chair (which used to be my chair before she decided it was her chair).

Just like caring for Katie my black Lab taught me about dogs, caring for Lucy is teaching me about cats. She finds me fascinating, as I do her. And she expresses great affection and love toward me without coaxing. I try to return the affection and love, but she is a cat, and she takes a bat at me on occasion, although I think that's just her being playful. She always has her claws in when she does that.

She sits next to me during the evening in her chair while I sit in mi…

vm networking problem fixed

Over the weekend I upgraded to Windows 8.1, then discovered that networking for the virtual machines wouldn't work. Then I tried something incredibly simple and fixed the problem.

Checking the system I noticed that three VMware Windows services weren't running; VMnetDHCP, VMUSBArbService, and VMwareNatService. VMware Player allows you to install, remove, or fix an existing installation. I chose to try fixing the installation, and that fixed the problem. The services were re-installed/restarted, and the virtual machines had networking again.

Once network connectivity was established there was exactly one updated file for Ubuntu 13.10, a data file. This underscores how solid and finished the release was this time. Every other version of every other Linux installation I've ever dealt with has always been succeeded by boatloads of updates after the initial installation. But not this time.

Everything is working properly on my notebook. All's right with the world.

sony's pivotal mirrorless move

I'm a died-in-the-wool technologist, even when it comes to photography. I have always been fascinated with the technology that goes into manufacturing any camera, from the lenses (optics) through the mechanical construction, the electronics involved, and especially the chemistry of the film and the sophistication of the digital sensor. It's amazing that the camera can do all it's asked of it, regardless of manufacturer.

Of all the types of cameras that I've really taken an interest in, contemporary mirrorless (again, regardless of manufacturer) are the most interesting because of the challenging problems the scientists and engineers have had to solve in order to build a compact but highly functional camera. In particular I've followed the sensor advances over the years and watched image quality climb (especially with μ4:3rds) to exceed film and rival one another such that there's very little difference any more as you move from the smaller sensors such as 4:3r…