Date: Tue, 1 Oct 1996 16:08:13 +0200 (MET DST) From: grog@lemis.de (Greg Lehey) To: rgrimes@GndRsh.aac.dev.com (Rodney W. Grimes) Cc: questions@FreeBSD.org (FreeBSD Questions) Subject: Re: disk-to-disk copy Message-ID: <199610011408.QAA21860@allegro.lemis.de> In-Reply-To: <199609280752.AAA14955@GndRsh.aac.dev.com> from "Rodney W. Grimes" at Sep 28, 96 00:51:55 am
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Rodney W. Grimes writes: > >> I have 2 SCSI disks which are going bad, and I've already >> gotten (identical) replacement drives. I'd like to copy >> everything (data, partition tables, etc) from the old drives >> to the new ones. Is there an easy way to do this? >> >> Nothing jumped out at me from the man pages. I'd rather >> not have to go through disklabel, dump, restore, etc. > > If they are truely identical in block count this will do it: > dd if=/dev/rsdX of=/dev/rsdY bs=8192 > > Note that hard errors are going to cause this to abort, so turn > on ARRE to try and minimize them with: > scsi -f /dev/rsdX -m 1 -P3 -e I've been waiting to see if anybody said aye or nay about this one. Last time I tried it, about a year ago both on 2.1-prerelease and 2.2-current, it didn't work: there are various interlocks which prevent you from overwriting volume labels. I don't have the time to check if it's still the case, but I'd be very interested in feedback. Greg
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