Date: Fri, 10 Sep 1999 15:37:34 +0300 (EEST) From: Narvi <narvi@haldjas.folklore.ee> To: Thomas Valentino Crimi <tcrimi+@andrew.cmu.edu> Cc: FreeBSD-Alpha@FreeBSD.ORG Subject: Re: data recovery with bad block 0 Message-ID: <Pine.BSF.3.96.990910153145.30127E-100000@haldjas.folklore.ee> In-Reply-To: <orpzlri00Uw=0kxFY0@andrew.cmu.edu>
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On Thu, 9 Sep 1999, Thomas Valentino Crimi wrote: > > Are there any methods/tools that can aid in recovering the data from a > drive which has suffered a media failure on block 0? (As a matter of > fact, I'm not quite sure yet if the failure is total, or only block 0, > at the time I didn't have anything but SRM and the install floppy to go > on). I'm imagining it should be easy to find the first partition, and > possibly gauge it's size (??) and find the second, and so on.. to > reconstruct the partiton offsets. The drive in question is a SCSI, > which I believe I installed as 'dangerously' dedicated. > What can I do to do this on-disk? Or am I forced to copy the drive > elsewhere? I'm fairly limited in terms of storage, but well motivated > to do it :) I'm picturing the worst will be if block 0 cannot even be > written to, as then the kernel will never accept it? > What kind of a drive is it? Modern drives should be able to remap bad sectors. for copying the drive use dd if=/dev/rdrive of=/free/space/here conv=noerror,sync After replacing drive and the path to the file, of course 8-) > > - Tom > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-alpha" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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