how to "boot cdrom -s" in sol10 x86

Hi,

Let say I have sol10x86 installed in an instance in ESX3.

Now I want to boot that instance from cdrom.

The sol10x86 cdrom is in my notebook xp.

In sparc machine, I just insert the cdrom into the server and when boot press "STOP A" and type "boot cdrom -s"

How do I do the samething in Sol10x86 in ESX

thanks