Re: Repair partition after dd

["neroni_andrea@yahoo.it" <neroni_andrea@yahoo.it>]

Hi,

> Since the partition now begins by a valid and complete ISO 9660 filesystem

> it might be necessary to deface the filesystem before any search for
> remnants of the original file system structure can get onto the right track.
>
> So if the rescue effort does not show sufficient results, then the whole
> ISO filesystem could be erased in order to point the rescue team to the
> interesting rest of the partition.

Yes, I aws afraid that having a valid filesystem on top of the previous one could lead to some misunderstanding in TestDisk. I'll definitely try what you are suggesting.

> - Determine the byte size of the ISO image that was copied to /dev/sda5.

>
> - To get some reasonable throughput, divide the byte size by 2048 which
>  will yield the block count. Let's assume the result is 714752.
>
> - Now zeroize the ISO's range in /dev/sda5:
>    dd if=/dev/zero bs=2048 count=714752 of=/dev/sda5

Thanks. Hopefully something good will come out. In any case I already did a PhotoRec run to extract as many files I could from the partition. Something has been retrieved, I'll need a lot of time to go over everything though.

Thanks again!

Andrea