Jeramy is correct.

If Knoppix doesn't like your version of APM, then it will just 1. drop you at RL2 prompt; 2. Tell you to remove the disk and hit Enter; or 3. do as mine does (with either a Knoppix of Debian style install, BTW) and end the session only, restart or shut 'er down.

I use an Asus P4C800-E Deluxe MOBO with the latest BIOS version, if it matters.

And yes, along with lang=us, nomce and such, there is a flag on each kernel for apm=power-off.

Best regards,

FastVFR