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From: yar@cs.su.oz (Ray Loyzaga)
Newsgroups: comp.unix.misc,comp.unix.admin
Subject: Re: backup difficulties
Message-ID: <1769@cluster.cs.su.oz.au>
Date: 7 Jan 91 22:51:06 GMT
References: <SHAWN.91Jan7121818@litsun8.epfl.edu>
Sender: news@cluster.cs.su.oz.au
Reply-To: yar@cluster.cs.su.oz (Ray Loyzaga)
Distribution: comp
Organization: Basser Dept of Computer Science, University of Sydney, Australia
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In article <SHAWN.91Jan7121818@litsun8.epfl.edu> shawn@litsun.epfl.ch writes:
> 
>   DUMP: Date of this level 9 dump: Mon Jan  7 12:00:02 1991
>   DUMP: Date of last level 0 dump: the epoch
>   DUMP: Dumping /u/giraud to /dev/rst8
>   DUMP: bad sblock magic number
>   DUMP: The ENTIRE dump is aborted.
> 
> 
> When I to a "dump f /dev/rst8 /u/username "
> I get the above error message. What's my problem?

try specifying the filesystem device, not the directory path of its mount.
I think sblock stands for "super block" in this case.

Do you realy just want a level 9 dump? You should probably also set the
u flag to update the dumpdates file and some sort of blocking factor
to speed it up. The sun manual on dump is not very explicit on how it
treats a filename argument rather than a filesystem argument.

The cartridge drive is not the problem in the above.