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Date:      Tue, 12 May 1998 10:39:00 -0400 (EDT)
From:      Jay <jay@oneway.com>
To:        questions@FreeBSD.ORG
Subject:   Duplicating drives using dd.. won't work?
Message-ID:  <Pine.BSF.3.96.980512103102.1445A-100000@tidal.oneway.com>

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Good Morning,

	 I've read the archives, and have gotten conflicting answers, so I
wanted to ask here and hopefully get a definitive one. 
	I have a SCSI drive that I wish to make an exact copy of.  The
drives that I am going to be copying onto are identical to the master
(same model). 
	I tried using dd in single user mode to duplicate the disks:

		dd if=/dev/rsd0c of=/dev/rsd1c bs=32768
	
	And this seems to work... except when I attempt to use the newly
created disk, I get all sorts of errors...  fsck freaks out on the drive.
After awhile, I can get it to repair the drive, but either I lose some
files or things get corrupted.

	In the mailing lists I have seen people suggest doing the copy via
dd... and others saying not to...  It does not seem to work as is.  

  I'm not a newbie to FreeBSD, and would really like to understand what is
happenning here.  Can anyone point me in the right direction?

Thanks,

Jay


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