Any alternative to type parameters at the boot prompt Solaris 10

I dont know why I can not type any thing in the boot prompt (like a unplugged keyboard).

The issue is , I've an AMD 64 proc. and I want to boot with the specific kernel, so I must type

b /platform/i86pc/kernel/amd64/unix -vs

Can I specify this parameter in a file that Solaris will read in the booting process, so I dont need to type it?

If yes, what if there are some wrong with the execution of this parameter within the file, Will the boot process of solaris aborted?

Thanks a lot.

[530 byte] By [jfvm] at [2007-11-25 22:55:06]