Re: ruined partition. Can data be recovered?

On Fri, 27 Jan 2006 16:51:14 +0000, Leo (Bing) Whiteway wrote:

> ray wrote:
>> On Fri, 27 Jan 2006 07:19:35 +0000, Leo (Bing) Whiteway wrote:
>>
>>
>>>My system is AMD 1600 XP with 512 megs ram, a 200 gig ide hard drive, an Aopen
>>>dvd/cd/rw and a D-link router/adsl modem.
>>>
>>>I have been having troubles with my hard drive or cables or motherboard.
>>>The problems with my hard drive were I was getting dma errors and often the
>>>drive could not be found by the bios.I replaced the 80 wire cable 6 times with
>>>no reliable results. I have now installed a 40 wire cable and it seems more
>>>reliable.
>>>
>>>In trying to fix my problem I have somehow made a partition unreadable.
>>>
>>>It is a spare partition that I was saving data to. I have only partially saved
>>>one dvd of data but the drive had 18 gigs and I would really like to restore it
>>>or maybe get the data back.
>
> <snip>
>
> > I have recovered partitions from a disk with a corrupted partition table
>> and bad block errors. I did:
>>
>> 1) ran sfdisk to identify the offsets and sizes of the partitions
>> 2) used dd to save data to a file, using offsets to get to the partitions
>> and sizes to capture the whole partition. Also used conv=noerror to keep
>> it from stopping on error and conv=sync to fill in bad blocks with nulls.
>> 3) loop mount the file to which I captured the data.
>>
>> At this point, you can fsck the loop mounted file and recover data.
>> My experience was with reiser partitions and reiserfsck reported back no
>> errors on the loop mounted file system.
>
> I wish I knew what you mean. I have always printed my partition table so I know
> the sizes etc. I will have to read about dd etc. and loop mount.
> Are you saying that reiserfs is more repairable?
> Thank you.

on that other message, of course, it would be /dev/hda. You may also be
able to get it from /dev/hda20 with no offset or count if the partition
table shows ok. I'd really recommend finding out what is the basic problem
with the disk before you proceed.

.

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