[SOLVED] Re: seeking help on "adding a disk"

[Peter]

--- Jerry McAllister <jerrymc at clunix.cl.msu.edu> wrote:

> > 
> > 
> > --- Jerry McAllister <jerrymc at clunix.cl.msu.edu> wrote:
> > 
> > [snip]
> > 
> > > > # newfs -U /dev/ad2s1e
> > > 
> > > Newfs used to require the raw device name, as in
> > > 
> > >    newfs -U /dev/rad2s1e
> > > 
> > > but I see the man page doesn't show that in its example now, so
> > > maybe it no long does.   Try it once and see.
> > 
> > > > > The newfs should then work after the bsdlabel is fixed up.
> > > > 
> > > > Nope.  Same error.  Retries of newfs causes crashes at random
> > > sectors. 
> > > > I am guessing that the 40-wire cable is causing poor signaling.
>  I
> > > also
> > > > tried changing the offset of 'e' to 0 and modifying the 'size'
> so
> > > that
> > > > it matches 'c'.
> > > 
> > > Could be.  If using rad2s1e doesn't help, then maybe that is your
> > > problem.
> > 
> > 
> > This is all I have:
> > 
> > $ ls -lh /dev/r*
> > crw-rw-rw-  1 root  wheel    0,  10 Apr  9 15:55 /dev/random
> > 
> > No raw devices.
> 
> Yes.  devices don't just show up and stay there any more.  They
> are managed by devfs.   I haven't studied that to see just how
> it works yet, so I don't know at which point it should start showing
> up in /dev if ever.
> 
> I just figured trying a newfs with the /dev/r... might be something
> to try out to see what happened - sort of an experiment and if that
> doesn't do it, then maybe the thing to pursue is your concern about
> the cables.
> 
> If that doesn't work, I think this has gone beyond any problems I
> have
> ever had so I don't know what else to suggest.  Hopefully someone
> else 
> will have some thing to say.
> 
> ////jerry


I changed to a UDMA 133 cable (80-wire) and that solved the problem;
the newfs command succeeded!

Peter

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