Date: Wed, 13 May 1998 01:58:22 -0400 (EDT) From: Jay <jay@oneway.com> To: questions@FreeBSD.ORG Cc: Jos Backus <J.G.E.Backus@urc.tue.nl> Subject: Re: Duplicating drives using dd.. won't work? Message-ID: <Pine.BSF.3.96.980512234426.2608A-100000@tidal.oneway.com>
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> > 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). > If you look at the disks with fdisk (``fdisk sd0;fdisk sd1'' comes to > mind), do they both have the exact same geometry according to FreeBSD? Yes... I did a disklabel -e on the destination drive and gave it all the settings (exactly) from the source drive. I decided to try it a little differently. I used the same command: dd if=/dev/sd0c of=/dev/sd1c bs=32768 Only this time I booted from the boot floppy and the fixit floppy to do it. It worked that way. So it seems like you can't dd with a source drive which has a filesystem mounted. My new question is why doesn't it work even if the filesystem is mounted read-only. If someone knows why that is I am very interested in knowing that. Thanks alot to everyone who replied, Jay K. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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