Public bug reported: I don't know if you are still interested in signatures of Windows utilities corrupting grub2, but in case you are, I have attached two hexdumps I made last year when I had this problem with Ubuntu 10.10 and an Acer registration utility. Sorry they are not dd dumps, but it's the same information you requested and I think it is fairly clear what happened (an entire block was overwritten at sector 18 / offset 0x2400). Searching for the signature with Google, I also found these URLs, which report the exact same contents at the same offset:
http://www.siteduzero.com/forum-83-584790-p1-acer-7741g.html http://forum.acronis.com/sites/default/files/forum/2010/04/9913/report.txt http://forum.ubuntu-fr.org/viewtopic.php?id=436731 ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/987022 Title: Signature of Acer utility corrupting grub2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/987022/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
