> Has this happen to anyone...
> 
> It has happened twice so far. The first time I'm not sure what the 
> circumstances were, but the second time, I happened to have a dos floppy
> in the a: drive while trying to boot NetBSD-1.0 off the hard drive.
> 
> When I got the message that the diskette in the drive was the wrong format,
> I took it out so the reboot could continue. 
> 
> Just then I noticed that it kept on rebooting as if someone kept hitting
> the reset button or <crtl-alt-del>.
> 
> I don't know if the floppy in drive a: had anything to do with it, that was
> just the last thing that had happened before it started acting funny. Before
> that, everything was fine.
> 

It happened to me once. There was dos virus on floppy which spoiled 
Master Boot Record of HD. 
Boot from floppy and disklabel your HD (I think "disklabel -B -b ..." 
is sufficient in case of dos virus) if it seems to be your case.

Zdenek Salvet
salvet@nyx.dcs.muni.cz