Date: Tue, 18 Oct 2005 19:04:09 -0500 From: "Craig Deal" <craig@advantagecomputer.biz> To: <freebsd-questions@freebsd.org> Subject: RE: Replacing a failing HD Message-ID: <200510181904296.SM01300@craiglaptop> In-Reply-To: <435576A8.7070203@adelphia.net>
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> -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Bob Ababurko > Sent: Tuesday, October 18, 2005 5:27 PM > To: Craig Deal; freebsd-questions@freebsd.org > Subject: Re: Replacing a failing HD > > Craig Deal wrote: > > > > > >>>Hope it's ok to continue this thread, but can you explain in more > >>>detail how to use dd to copy a HD. I read "man dd" and was > >> > >>unable to > >> > >>>figure out how this is done. > >>> > >>>Thanks, > >>>Craig > >>> > >>>_______________________________________________ > >>>freebsd-questions@freebsd.org mailing list > >>>http://lists.freebsd.org/mailman/listinfo/freebsd-questions > >>>To unsubscribe, send any mail to > >> > >>"freebsd-questions-unsubscribe@freebsd.org" > >> > >>This is what I have done in the past. > >> > >>dd if=/dev/da0 of=/dev/da1 bs=8192b > >> > >>where da0 is the disk you want to copy and da1 is the new, > blank disk. > >>I should also mention that it is wise to do this in single > user mode. > >>I actually have read this somewhere and understand the point of it, > >>but I must also say that I have done it both ways and they > have both > >>worked. > >>YMMV I would have to say it is all dependant and what you have > >>running. > >> > >>I have done this too many times to count and it is very easy. > >> > >>peace, > >>Bob > >> > > > > > > I tried this and got the following error: > > > > ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> > > error=40<UNCORRECTABLE> > > LBA=8387712 > > > > Any ideas what the problem might be? Do the hard drives have to be > > identical? One is a 30Gb and the other is a 60GB. > > > > Thanks, > > Craig > > > > > > I would think that you can dd from a small drive to a large > drive, but if the is possible _definitely_ not the other way > around. Which size are source and dest. drive? > > -Bob I should have been clearer. The source is 30GB and dest 60GB. Craig
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