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Ran DDRescue_GUI, missing the img and drive now
http://forum.hddguru.com/viewtopic.php?f=7&t=41816		 Page 1 of 1
Author:  Cannedfog [ October 21st, 2021, 17:10 ]
Post subject:  Ran DDRescue_GUI, missing the img and drive now
I tried to clone a drive (it has a partition which doesn't mount) using DDRescue_GUI and after the scan completed (no bad sectors, didn't need to make a second pass, no indication of problems) it wouldn't create the image file, and now the destination drive no longer mounts at all.

I must have done something wrong, since it wouldn't mount. I tried to rescue the contents of the DDRescue_GUI clone using DMDE and (demos of) R-Tool, and UFS, but it's showing errors, no file structure, and doesn't appear to have preserved the current state of the troubled drive..and now I have a new troubled drive showing new errors in those recovery programs.

The newly scanned info is in worse shape because that at least still has file structures on one partition appearing in the finder, and doesn't show the same errors in the recovery apps that recognize the drive and partition name. But the DDRescue scan only did 1 pass and didn't show any issues.

Is there a way to remedy this situation with the DDRescue_GUI scan?

Is the DMDE sector by sector function worth trying?
Author:  Arch Stanton [ October 22nd, 2021, 8:28 ]
Post subject:  Re: Ran DDRescue_GUI, missing the img and drive now
Sure you imaged to file then? I never use ddrescue but if destination was drive rather than image file then story makes sense.

What's the file system of the partition that refused to mount? And what happened to it? If all these quite good tools are unable to reconstruct a file system then either the file system wipes meta data upon deletion, formatting etc. or file system is quite severely damaged. So, IOW with some file systems or with certain type of damage RAW recovery is expected, in others it's not.
Author:  Cannedfog [ October 22nd, 2021, 15:15 ]
Post subject:  Re: Ran DDRescue_GUI, missing the img and drive now
Arch Stanton wrote:
Sure you imaged to file then? I never use ddrescue but if destination was drive rather than image file then story makes sense.

What's the file system of the partition that refused to mount? And what happened to it? If all these quite good tools are unable to reconstruct a file system then either the file system wipes meta data upon deletion, formatting etc. or file system is quite severely damaged. So, IOW with some file systems or with certain type of damage RAW recovery is expected, in others it's not.


Thanks for the reply.

DDRescue is supposed to create a mountable file from the data it clones, drive to drive. It didn't do that for me. The drive I captured to is also now greyed out.
The app is supposed to re-scan bad sectors, but it didn't spot any, despite there obviously being problems.

I'm on OSX.
It's a USB drive, and one of the partitions wasn't showing in the finder, and now I don't have access to it at all.
The disk has 2 partitions, 1 is intact and accessible still (but DDRescue failed with that one too).
I had made a .DMG file of the problematic partition using the built in Disk Utility. The rescue software got me my file directories and files with the right size, but a portion were corrupted, so I was trying to do a better attempt at cloning to work off and this time copy the whole disk.

My goal is to rebuild my user files, so RAW files are fine if I can find them.

Thanks again.
Author:  Arch Stanton [ October 22nd, 2021, 19:06 ]
Post subject:  Re: Ran DDRescue_GUI, missing the img and drive now
You can not expect a volume that can not be mounted due to some logical issue to be mountable after cloning it. It does not work like that. You clone it including FS corruption.
Author:  Cannedfog [ October 22nd, 2021, 19:16 ]
Post subject:  Re: Ran DDRescue_GUI, missing the img and drive now
Right, what I'm trying to mount is the DDRescue image, which is what every tutorial says to do, I'm not expecting a recovered drive that's mountable as if it were the original.

DDRescue isn't supposed to make an initialized drive go grey in the finder.
Author:  ddrecovery [ October 22nd, 2021, 19:20 ]
Post subject:  Re: Ran DDRescue_GUI, missing the img and drive now
Cannedfog wrote:
DDRescue isn't supposed to make an initialized drive go grey in the finder.

Are you sure you imaged the correct drive to the correct drive?
Author:  Arch Stanton [ October 22nd, 2021, 20:04 ]
Post subject:  Re: Ran DDRescue_GUI, missing the img and drive now
Cannedfog wrote:
Right, what I'm trying to mount is the DDRescue image, which is what every tutorial says to do.


I don't care what every tutorial says. Simply cloning an un-mountable volume will not make it mountable, or at least not as an accessible file system.
Author:  Cannedfog [ October 24th, 2021, 14:17 ]
Post subject:  Re: Ran DDRescue_GUI, missing the img and drive now
ddrecovery wrote:
Cannedfog wrote:
DDRescue isn't supposed to make an initialized drive go grey in the finder.

Are you sure you imaged the correct drive to the correct drive?


Definitely. The recovery apps are confirming my files got duped over at least.
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