Just get rid of the commment line added by knoppix. If you get rid of the comment the line after it will not be changed on startup. Hopefully this helps this problem drove me nuts until i found the solution.
I installed 3.4 on HD last night, and customized it to suit my needs. I had been using 3.3 for a while, and it's worked wonderfully for me. Anyway, I fixed up fstab to mount my (pre-existing) /home and /data partitions, set up my static IP, added rc files for the services I need, etc... all is groovy. After a re-install, all of my changes in /etc are gone! fstab is overwritten, system attempts to use DHCP to get network settings (and fails...), rc3.d and rc5.d directories are empty again...
There's gotta be a script somewhere that is doing this, but I can't find it. Any ideas?? I can reset everything, but if my wife ever reboot's the machine, she's toast! Of all the config tweaks to loose, fstab has to be the worst...
Just get rid of the commment line added by knoppix. If you get rid of the comment the line after it will not be changed on startup. Hopefully this helps this problem drove me nuts until i found the solution.

Vintage Apple Extended Keyboard II M3501 Mechanical ADB - Tested & Working
$54.99
Apple Mac OS9 Cloth Banner Think Different 64 x 24 inches NEW ORIGINAL Vintage
$99.99
Vintage Apple Computer Keyboard Model M0110A, Good condition, Untested
$125.00
Vintage Apple Macintosh IIsi Computer, Monitor, Keyboard & Mouse Complete Setup
$199.99
Apple IIc Home Computer Vintage Model A2S4100 Retro Computer Untested
$149.00
Vintage APPLE Computer Keyboard M0110 and Mouse LOT M0100 & Desktop Bus
$129.00
Vintage Apple I 6502A CPU: Kim 1, Pet, = (Synertek MOS), Unused, gold Ceramic
$299.99
Vintage Apple Keyboard II M0487 ADB Keyboard w/ Coiled Cable 🍎
$44.99
Apple cloth fabric banner iBook tangerine orange New Old Stock Vintage
$99.00
VINTAGE Apple PowerBook G3 Lombard M5343 400MHz 192MB Working Mac OS X Bundle
$299.00