I'm using KNOPPIX to erase some HDs prior to decommissioning PCs. The command to do this is quite simple:
dd bs=4096 if=/dev/zero of=/dev/hda
/dev/sha, depending on what kind of drive it is.)
When I initially boot KNOPPIX, it seems perfectly responsive. However, after a minute or two of erase activity, the system becomes massively unresponsive. Like, the screen went blank, so I pressed a key to make it come back, and I could actually watch the system drawing the individual characters onto the screen, a few per second.
There's no CD activity while this happens, and there's no swap partition defined, so I'm at a loss as to what the hell is taking so long just to display some text.
Similarly, if I press the caps lock key, it takes about 15 seconds for the light on the keyboard to respond. That's an awfully long time, IME.
I'm running at runlevel 2, if that makes any difference.
Does anybody know what's taking so long? (And, ideally, how I can make it not do this.)