cg0: bad magic number

[Roland Smith]

On Sat, Aug 14, 2010 at 11:35:11PM +0200, Dick Hoogendijk wrote:
>   My 1Tb sata2 drives work very well with FreeBSD. They can be sliced, 
> partitioned and newfs can be run.
> However, no matter what I try (sysinstall, gpart) when I slice my 500Gb 
> drive and create a partition in it (1 block smaller than the slice) I 
> can not newfs the /dev/ad8s1a
> It always end up with a *cg0: bad magic number*

Can you show the output of 'gpart show ad8' and 'bsdlabel ad8s1'?

It might be that newfs is clobbering the partition table.

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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