Viewing posts tagged computers
Just a quick heads-up: My co-located machine martes.yaina.de keeps crashing after a reboot. I'm going to move to a rental machine ASAP (on Monday at earliest,) but it will take a couple of days until everything is working again. The current plan is:
I don't understand much about SQL, but even I know it's not supposed to be done like this...
CREATE TABLE prg_knowledge (
creating_date timestamp with time zone,
changing_date timestamp with time zone,
timestampfield01 timestamp with time zone,
timestampfield02 timestamp with time zone,
I drove to the data center yesterday. The machine didn't even shutdown. All fans running, memory okay...Okay, no hardware issue after all. In fact, it was a broken maintenance script which was supposed to set up the chroot environment for postfix. Instead, it copied everything to the root directory and changed the permission of /tmp to 755 and ownership to user "postfix". Thus, a couple of processes just crashed. At least the machine continued to process incoming e-mail. Well, almost exclusively.
Luckily, MacOS X is based on some kind of BSD, in other words: it is a Unix system. It even comes with X11. However, as a desktop system many tools I like and need aren't present. I already had an ancient version of Darwinports running since 10.2. That old installation was terribly broken, though, and almost nothing compiled anymore on 10.4. Thus, I removed it and started again. There are several alternatives available, two of them being based on (Free)BSD ports, and one on Debian packaging.
The machine running yaina.de crashed twice within the last two months, so I decided to do some maintenance work. At the data center which is housing the system I discovered that my suspicions were right: Indeed, the CPU fan didn't move, and the power supply fans were stuck as well. Hence, I decided to take the machine home and fix it. First problem: I could not get the heat sink from the CPU (which I had to remove to get the fan off the heat sink),instead the CPU came out of its socket. Luckily, a colleague showed me how to get it off: take the blade of a box cutter, place it on the gap between the heat spreader and the heat sink and hit the blade carefully with a hammer. (Naturally, this will only work with chips that have a metal heat spreader plate. Try at your own risk.)