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There is no superblock on your defective card, neither at the beginning of the partition nor at the location of the first duplicate. There is empty space.

"ext4_validate_block_bitmap" sounds like the name of a function that cross-checks a bitmap by comparing with the block usage extracted from file ...

Please download the 7.3 BETA and try to reproduce the error.
The linux version contains the static version of PhotoRec - no installation is necessary.

Thank you for waiting - and watching me fail in linux! :oops:
I gave you wrong parameters!!!

Replace the device /dev/sdx1 by the name of the partition in question of your good clean device:

The first superblock on your clean device starts at an offset of 1024 relative to the beginning of the ...

Which version are you using?

De rien!

Mais cela vraiment sympa de votre part si vous pourriez utiliser le vrai nom du logiciel qui est supporté par ce forum!

Interesting! What is this mysterious software labeled "TestDrive"?
I never heard of it!

At least you were succesful, finally!

After reading the comment of Christophe that there is no need to modify the partition table I noticed that my statement about the defective partition table was wrong - I looked at the wrong location in your log file - sorry! :? :roll: :oops:

I have no direct recovery ideas anymore.

Your error ...

hello,

thanks a lot for the clues! Was able to ddrescue the card and it completed without reading bad sectors.

fsck returns:

fsck.ext4: Bad magic number in super-block while trying to open /dev/sdc2
/dev/sdc2:
The superblock could not be read or does not describe a valid ext2/ext3/ext4 ...

hello,


First of all, thanks a lot for this forum and for any clue that could be provided as I'm all new to this utility and kind of issues.

The issue is on a raspberry disk which was created by the raspberry imager on a microSD card.
It used to display two main partitions:
bootfs
rootfs
Hooray ...

Does TestDisk have a problem working in Windows 11 (and Windows 10)?

In times past, when I would want to use 'Victoria Drive Utility' (VDU) to find/correct weak/bad sectors on external storage drives, I would:
#1 (In a laptop running Windows 7 & having a backup of the drive), I would delete the ...