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Copy of HP-UX from MO disc

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Copy of HP-UX from MO disc

This is my newbi question. I have HP-UX on a MO drive, need to backup that MO in case of damaging the original. Therefor I need a copy on server and be able to put that copy onto a blank MO to recreate a working bootable disc. This what I did.
First I tried to make a copy with dd

dd if=/dev/dsk/c1t0d0 bs=1048576 count=450 of=backup.copy
The data on disc is about 300Mb so 450 would be enough i thought. Not working, som of the files were corrupted. Tried without the count and just backed up the whole MO, same thing. Tried cat /dev/dsk/c1t0d0 >backup.copy, same thing. But on the latter I came a bit futher, almost of the install sequence before it found a corruped filed and quit. Is there a better way?
I would prefer to specify the filesize, cause it seems unnessesary tu put about 1.3Gb file on server when the files on MO is about 300Mb. Can this be fixed?
Hope someone understand my newbi question....

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File::Copy::Link(3pm)					User Contributed Perl Documentation				     File::Copy::Link(3pm)

File::Copy::Link - Perl extension for replacing a link by a copy of the linked file. SYNOPSIS
use File::Copy::Link; copylink 'file.lnk'; use File::Copy::Link qw(safecopylink); safecopylink 'file.lnk'; DESCRIPTION
"copylink" reads the filename linked to by the argument and replaced the link with a copy of the file. It opens a filehandle to read from the link, deletes the link, and then copies the filehandle back to the link. "safecopylink" does the same as "copylink" but without the open-and-delete manouvre. Instead, it uses "File::Spec::Link" to find the target of the link and copies from there. This module is mostly a wrapper round "File::Spec::Link::linked" and "File::Copy::copy", the functionality is available in a command line script copylink. EXPORT Nothing by default, can export "copylink", `"safecopylink". SEE ALSO
copylink(1) File::Copy(3) File::Spec::Link(3) AUTHOR
Copyright 2003, 2006, 2007 by Robin Barker This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.4 2011-09-30 File::Copy::Link(3pm)

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