I investigated this duplicate https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/716865 Its FlexNet sector was sector 50. I compared that sector50 with this sector32, the first 8 bytes are identical: d8 41 a0 f5 02 00 02 00 So this is the signature of FlexNet.
If the command below finds the signature you are at risk: sudo dd if=/dev/sda count=63 2>/dev/null | hd | grep "d8 41 a0 f5 02 00 02 00" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/730225 Title: grub-install trashes ntfs partition when sector 32 of the hard disk is occupied by Adobe FlexNet -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs