Hi, Heinz Nimmervoll wrote: > https://i.stack.imgur.com/ciaLG.png
Hard to say from what the right side data might stem. Left side indeed beared the ext4 magic number at bytes 0x38 and 0x39. > How is it possible, that even the magic number (and everything else) got > overwritten? Most natural explanation would be direct writing to the partition device or its overall storage device rather than via the filesystem driver: dd of=/dev/sda if=/file/with/right/side/data Of course it could also have been a mad filesystem driver, a mislead partition editor and/or filesystem formatter, a hardware error, ... Have a nice day :) Thomas

