Michael's Domain

The fact that everything looks different doesn't mean that all has changed

Hardware


Pinnacle PCTV Deluxe and Linux support

I bought a USB TV card; a Pinnacle PCTV Deluxe. There is only one program for Linux available: dunerec. Here is how I got it working:

  1. Download and untar (tar -xvzf) dune2-linux.tar.gz
  2. After untarring you have two directories: dunetools and dunelib, two shell scripts (which function escapes me) and one README.txt with some installation instructions.

Hardware (harddisk) failure (dma timeout error, dma_timer_expiry)

A while ago our server seems to have a hard disk failure as the following error messages kept coming up: hda: dma timeout error: [...] hda: dma_timer_expiry: [...] We exhanged the 20 GB HD against my old Mac's 4.7 GB HD and reinstalled the system. A friend of mine tried the "broken" 20GB HD on a Windows system and said it works fine.


The BIOS Password of Macintosh computers (Open Firmware)

Macs don't have a BIOS. They have something called Open Firmware instead. So the BIOS password is called Open Firmware password. You boot into Open Firmware by pressing the command (=apple), option, O and F keys simultaneously during system boot. To set the password type password To enable the protection type setenv security-mode full An then reboot by typing reset-all Apart from the full security mode you can also set "none" (= don't ask password during boot) and "command" (=gives you only limited access to Open Firmware without the password.


How to boot into the BIOS of a Dell Precision WorkStation 410MT to change to SCSI booting

Why do all hardware producers make up their own key combinations to access the BIOS? I never remember. This time it was an old DELL, that forced me to download the user manual: It is Ctrl+Alt+Enter. I needed to change the boot priority in the BIOS to enable scsi booting. Funnily grub confuses the disks and you manually have to specify the correct root(hd0,1) in the /boot/grub/menu.lst. Grub writes its guess of hard disk order to /boot/grub/device.map, but the guess was wrong in my case.


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© Michael Jeltsch 2006

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