How to recover my boot/device.hints

[Huajian Luo]

Hi, there

I've just  screwed up my device.hints file when using  echo "blah" >
/boot/devides.hints,
and blasted away all the configure file and now when I boot the
fbsd5.4 there is no
dmesg scroll up the screen, and same to reboot,  so can somebody tell me how to 
recover this file and let me see what's happening during boot and
reboot process.

Thanks,

 whatluo.