From owner-freebsd-questions Tue May 12 07:31:09 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id HAA10993 for freebsd-questions-outgoing; Tue, 12 May 1998 07:31:09 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from tidal.oneway.com (tidal.oneway.com [205.177.9.252]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id HAA10982 for ; Tue, 12 May 1998 07:30:55 -0700 (PDT) (envelope-from jay@oneway.com) Received: from localhost (jay@localhost) by tidal.oneway.com (8.8.5/8.8.3) with SMTP id KAA01452 for ; Tue, 12 May 1998 10:39:00 -0400 (EDT) Date: Tue, 12 May 1998 10:39:00 -0400 (EDT) From: Jay To: questions@FreeBSD.ORG Subject: Duplicating drives using dd.. won't work? Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG 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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message