how to recover system file

Hi everyone

I have a sun fire v880 server there having a system file problem it gets currupted. i haven't taken backup of that.i want to recover system file. i have not any tape drive ,CDDRIVE & machine is also not in network. so how i can recover system file. Is there any procedure for that or any command.
anyone having idea abt that plz help me

regards
prakash

Depends on your OS but on solaris systems with a bootprom you can simply delete the system file (or rename it) and do a boot -p to recreate it.