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Date:      Thu, 02 Dec 2004 10:49:17 +1000
From:      freebsd-stable@auscert.org.au
To:        freebsd-stable@freebsd.org
Subject:   4.x can't read 5.x dump?
Message-ID:  <200412020049.iB20nHiP009543@app.auscert.org.au>

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Hi,

I'm backing up a 5.x machine at the moment with this command:

dump -0Lau -b128 -f - /var | gzip -2 | ssh FreeBSD4 dd of=aacd0s1f.gz

After the dump finishes, I try to read the file on the 4.x destination:

# gzip -dc aacd0s1a.gz | restore -ivf -
Verify tape and initialize maps
Tape is not a dump tape

I can scp the file back to the 5.x machine and it loads just fine, so what
gives? This type of failure is somewhat scary for me right now, given that
I may have to restore files to another destination that may not be 5.x
based.

thanks,
-- Joel Hatton --
Security Analyst                    | Hotline: +61 7 3365 4417
AusCERT - Australia's national CERT | Fax:     +61 7 3365 7031
The University of Queensland        | WWW:     www.auscert.org.au
Qld 4072 Australia                  | Email:   auscert@auscert.org.au



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