how to set up another location/partition/disk for swap in osX ?

[Anne et Bertrand]

It's a little off topic for this list, but it's plainly related to mol 
for me :
I 've installed Panther in a disk file. But, for some reason, pdisk had 
always failed to write partition tables on big disk images for me (core 
dump) . I've once created one of 2 GB and could install osX on it, but 
os X takes almost all the available space on it. So I've duplicated the 
disk file and declared it as another disk in mol, I've formatted it in 
osX and could have a little more space.

But my first osX "disk" is still almost full, and the swap files in it 
take lots of place (could you believe I run osX with only 100MB of "ram" 
in mol, because I only have 140MB of ram ?).

So I want those swap files to be created on this second "disk".

After searching a little, a couple of "grep swap", I found it was set up 
at boot time in /etc/rc, to be created in /private/var/vm.
I've tried to edit /etc/rc in osX to specify this "disk" as swap 
location for osX (located in /Volumes/Disque2).

But then, osX creates at boot a Volumes/Disque2 directory, and mount the 
second disk at "/Volumes/Disque2 1"). So my swap is always on the the 
first disk, but now in /Volumes/Disque2, not in /private/var/vm anymore ...
It seems that the swap is created before disks are mounted at boot time...

Any idea ?

Or could I create disk file for swap and set it up as a swap disk (not 
file) in osX ?

Thanks,
Bertrand Dekoninck