Overwritten files on ext4 formatted SD card
Posted: 25 Sep 2017, 16:11
There are some files on my ext4 formatted SD card which have been overwritten with files of the same filename.
There is plenty of space left on the SD card. So I thought, the new written data should have been written to previously free and unused sectors on the SD card due to flash memory wear leveling. However, PhotoRec cannot find the overwritten files - only the current files.
I couldn't find out, if the files are unrecoverable, because the overwriting has written onto the same sectors - or if there is a chance to recover the files, be it due to the design of the ext4 file-system or due to flash memory wear leveling or something else.
I tried to describe my problem as extensive as possible. If I could add something else to clarify the issue, please tell me.
Thank you very much
There is plenty of space left on the SD card. So I thought, the new written data should have been written to previously free and unused sectors on the SD card due to flash memory wear leveling. However, PhotoRec cannot find the overwritten files - only the current files.
I couldn't find out, if the files are unrecoverable, because the overwriting has written onto the same sectors - or if there is a chance to recover the files, be it due to the design of the ext4 file-system or due to flash memory wear leveling or something else.
I tried to describe my problem as extensive as possible. If I could add something else to clarify the issue, please tell me.
Thank you very much