SunFire V245, External CD/DVD-ROM, Solaris Install

Hey all.

Wondering - I have a pair of V245's with no internal CD/DVD-ROM drives, and I want to install the latest/greatest Solaris 10.

Booting these machines with an external drive plugged in via USB does no good.

Is jumpstart or installing internal drives the only alternative?

I'm a n00b with the SunFire machines.

Any assistance/tips, greatly appreciated!

:-\

you can add a scsi adapter and install with an external scsi drive. but jumpstart is an easy and fast solution for your problem...