Hi,
No idea for SUp 32 but I am using below method for SUP 720 might help you.
While in console
1/ run command # dev hit enter
2/ Check for diferent disk available...for example if it give you disk0: option then
3/ run command # dir disk0: hit enter
4/ check for image file you want to load..copy name of image file then
5/ run command # boot disk0: hit enter
if it does not work solution might be different in your case.
Hope this helps
Regards # Mahesh