Hi, Le vendredi 09 décembre 2016 à 09:15 +0100, Heinz Nimmervoll a écrit : > System: > Embedded board with Atmel SAM9x25 > Debian Wheezy Kernel 3.11.6 > 32GB Samsung SDHC card with ext4 root- partition (journal activated) > After system running two weeks or so superblock from rootfs (ext4) at > block 0 got overwritten with "trash data". Here is a hex comparison > between the an original superblock and the faulty: What tool did you use to create this picture? > How is it possible, that even the magic number (and everything else) > got overwritten? > Why could it ever be overwritten? > Thx for your help! Unfortunately I have no answer to give. Any program running as root can write anywhere on the disk…
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