[Info-vax] Request description of UFS for VMS person

AEF spamsink2001 at yahoo.com
Wed Apr 29 21:54:07 EDT 2009


On Apr 29, 8:07 pm, glen herrmannsfeldt <g... at ugcs.caltech.edu> wrote:
> AEF <spamsink2... at yahoo.com> wrote:
> > The primary one I can think of is that everything on the volume really
> > *is* a file. Everything in the volume is "transparent". In Unix, at
> > least the ones I have access to I don't know how to dump the super
> > block or inodes. And on one of them I can't even dump a directory!
> > So can you or anyone else tell us more of the advantages? And on the
> > Unix side if there is a way to read the super block and inodes? So
> > much for "everything is a file in Unix".
>
> If you can read or write the raw device, you can see or change
> anything on the disk.  (Some might be in cache, so you have
> to be careful while it is mounted.)
>
> With dd and the raw device you can extract a copy of the superblock.

How? And it's still not a file.

>
> -- glen

AEF



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