Tag Archives: Linux

RFID Exploration

I recently picked up a USB RFID reader/writer pod to play with, partly to learn enough to be dangerous about the tech, and partly hoping to tamper with the RFIDs in the current university ID cards. I’m pretty sure I … Continue reading

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Rescuing Ancient FreeBSD Discs with Linux

The ancient FreeBSD/i386 box that was running cgi.aggregate.org finally keeled over. I just blew my afternoon/evening scraping the data off of it because while the most critical stuff was backed up, not everything was. Some keyword and error string filled … Continue reading

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Command Line Bullshittery?

I started responding to Philip Guo’s Helping my students overcome command-line bullshittery that passed through my news feeds today, and my thought quickly outgrew the appropriate size for social media, so it’s going up here. I understand and often share … Continue reading

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Inspiron 11-3000 Notes

The KAOS lab recently bought a fleet of five Inspiron 11 3000 3138[PDF Warning] (Celeron N2815/4GB/500GB)laptops. They’re tiny little machines with 8 hour claimed battery lives, they’re pretty cute and sort of obstinate. I borrowed one to play with, notes:

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WNR3500L Repair

Some years ago the KAOS lab bought a number of Netgear WNR3500L routers to use as network glue. A pair of them have been in constant service since 2011 in the lab and machine room, and both of those died … Continue reading

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Debian init Decision

The Debian ctte init discussion, which has been the drama that keeps on giving, appears to have finally had a decisive vote for systemd [EDIT: I was over-ambitious about decisive. The drama continues.] as the jessie init. Some notes: I … Continue reading

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chdk-ptp PKGBUILD

In another episode of fixing things for the Cameras as Computing Systems class I’m taking, I made a PKGBUILD that apparently correctly builds and installs chdk-ptp on Archlinux systems. Chdk-ptp is a tethered-control application for Canon cameras running CHDK, that … Continue reading

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Udisks2 Misfeature Fix

Apparently David Zeuthen committed a patch back in February (appears in udisks2 >= 2.0.91, afik) that lets you single-point (or selectively) switch Udisks2 back to the nice, sane, predictable “Removable drives mount to /media” behavior instead of the asinine “Drives … Continue reading

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I got into another discussion about Linux init systems. Since I still get a lot of hits about that, I figure I should put a link, as the long two-part post is a reasonably clean and complete explanation of my … Continue reading

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I want my UNIX groups back

The breakage of permissions under recent PolKit/logind is flabbergasting. They have completely subverted UNIX groups/permissions in a difficult-to-unbreak way. And I get cheerful little update messages saying things like “You no longer need to be in the camera group to … Continue reading

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