boot disk uses the wrong scsi driver

[Thomas Vogt]

Hi

I try to boot Fbsd 5.2.1 release from a floppy disk in order to make a 
net installation. The boot disk uses always the wrong SCSI driver. It 
loads every time the "adv" SCSI driver. But I need the "asr" driver. So 
the systems hangs all the time. Is there a possibility to send a 
paramater during the boot session to defines the SCSI right driver? 
Something like "set hint.asr.enable="1"?

regards
Thomas Vogt