Replacing a failing HD

Craig Deal craig at advantagecomputer.biz
Tue Oct 18 14:19:56 PDT 2005


 
> > 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 at freebsd.org mailing list 
> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> > To unsubscribe, send any mail to 
> "freebsd-questions-unsubscribe at 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 at freebsd.org mailing list 
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to 
> "freebsd-questions-unsubscribe at 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



More information about the freebsd-questions mailing list