There are some docs about this at:
You need to set your BIOS to boot from CDROM.
When the blag CD boots, it will show a screen with a
prompt. At this prompt type:
This will automagickly partition your hard drive, format it, and install blag. This will erase the hard drive, so don't do it on any data you want to keep. The "blagblagblag" install takes just under 2 gigs. If your hard drive is under 3 gigs, you probably want to do a leaner install. For a smaller drive type:
at the boot: prompt.
Have fun, :)