Okay, First: I still use a B&W as my primary machine, but it's dual IDE disks, not SCSI as yours is, but that shouldn't matter too much... And sometimes my descriptions aren't 100% what you'll read, that's because I'm Dutch, and I'm sometimes guessing at what the translation is..; But you should get my drift...
The good news is, you were halfway there :D And I think there is no bad news :D:D
Okay, I'm going to go through this step by step, don't feel offended if I point out the obvious at places, some people with similar problems might be reading this too, and I always like my explanations thourough (or overly boooooring, heh)
-put CD in drive -restart, holding the 'c' key untill you start to see text -when the text stops, it wants you to select an install, if you just press <enter> it will do the default install, but you can do other stuff (but I'm already going offtopic...) (so...I assume you press <enter>)
After some text flashing by, you get to the proper installer, you can't use the mouse, but have to do selections by using your arrowkeys, pressing enter is selecting/commiting to stuff, ...
-select language; -select country; -keyboardlayout; -set up your network (if this doesn't seem to work rightaway, choose (do setup later); -give a name to your computer (mine is oldblue);
And then you enter the menu of the diskpartitioner. (DumDUMdum...)
you'll get some choices (roughly translated should read like: )
-Erase entire disk SCSI xyz GB
-Use largest continuous space -Manual partitioning
Now, as you pointed out, you don't care about the OS9 residing on it, select "erase entire disk" (arrows+enter)
After a while you see something like > computing blahblah... And then a text warning you about stuff... It should say something like:
Partition tables of following devices are changed:
SCSI blahblah... following partitions are going to be formatted part #3 of ..... as ext3 part#4 of ... as swap write changes to disk? Now, I personally always want to double-check my stuff, so I suggest you do so too, and select the (default) NO answer... Which will bring you to a screen showing your partitions. And that should say something like:
SCSI1 (0,0,0) (sda) - 9.1 GB IMB DDRS-39130D
#1 32.3kB Apple #2 1.0MB (lightning arrowicon)(black smiley) boot untitled #3 8.xxGB (white smiley) ext3 untitled/ #4 127MB (white smiley) swap swap swap
Note that the memory-allocations are rough guesstimates of mine, I have other disksize and memory...
Okay, if you see this, you should be a happy chappy and use the arrowkeys to select the option> finish partitioning and write changes to disk and hit <enter> to continue the install.
However, if you still see the dreaded
SCSI1 (0,0,0) (sda) - 9.1 GB IMB DDRS-39130D
32.3 KB APPLE
9.1 GB FREE SPACE
then use your arrowkeys to highlight the 'FREE SPACE' and hit <enter>
then you get a new window where you select > automatic partition free space hit <enter>, and you should see the table as described above (with the smileys...) and continue from there.
if this doesnt work, then you've got a problem...