How to revert dd command?
 

Hi,

this is my first post here, I clicked the above button but no similar threads showed up.

I issued a dd command with the wrong external drive connected.
It only worked for 3 or 4 seconds. After that I disconnected the cable.
But now I can't access the data. Is there a way to reverse this?

I can recover most of it with foremost and photorec, but I loose all the folder tree. And some files created with OpenOffice don't show as well.

Thank you in advance for any help.

Regards,
Pedro.

Welcome to Linux Questions!

Photorec, testdisk is the best one. You my also use a hexeditor to find data (hard).

The filesystem metadata (like directory entries) is at the start of the filesystem. Anything those tools can't recover is likely gone forever.

No backup I'm guessing ...

OK, I was afraid of this. No, the wrong cable leads to the backup.

Thank you for your answers. I'll mark the thread as solved.