Date: Tue, 18 Oct 2005 18:26:48 -0400 From: Bob Ababurko <ababurko@adelphia.net> To: Craig Deal <craig@advantagecomputer.biz>, freebsd-questions@freebsd.org Subject: Re: Replacing a failing HD Message-ID: <435576A8.7070203@adelphia.net> In-Reply-To: <200510181619968.SM01300@craiglaptop> References: <200510181619968.SM01300@craiglaptop>
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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 >>_______________________________________________ >>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" >> > > > 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 > > _______________________________________________ > 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" > 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
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