root and boot floppy on ISC

[Jan Mikkelsen]

In article <1991Apr12.175337.3858 at crom2.uucp> jim at crom2.uucp (James P. H. Fuller) writes:
[  text deleted ...]
>
>     But you *can't* hack a copy of the boot floppy itself (even though it's
>cloneable by either dd or DOS diskcopy) because it isn't mountable, because
>mount doesn't recognize it as containing any kind of valid filesystem.  It
>isn't 1K, it isn't 2K, it isn't DOS, it isn't XENIX, and that's all the types
>of filesystem that come with ISC.  fstyp(1M) can't make head or tail of the
>boot floppy.  Has anyone got any idea what it is?
>
>                                              James P. H. Fuller
>                                              jim%crom2 at nstar.rn.com

The actual filesystem starts at track one, not track zero.  Track zero
contains the bootstrap, which is read by the ROM BIOS.  Try mounting
/dev/dsk/f0q15d instead of /dev/dsk/f0q15dt ...
-- 
Jan Mikkelsen
janm at dramba.neis.oz.AU or janm%dramba.neis.oz at metro.ucc.su.oz.au
"She really is."