How do you update the firmware on a Sup720 (WS-SUP720)? Is that possible or not? recommended? I have tried to look for documentation on cisco's website but have had no luck. Thank you.

I just purchased a 2948g layer 2 switch.Everytime I boot the switch up it stops at the promptrommon1>If I type in boot it will load the switch. Also my passwords I set did not save.Are you suppose to save any configurations when you make any?How do ...