Can you try 1.99~20110112-1ubuntu1, once it builds? I think that may well fix it (see bug 700147).
If this still doesn't work, I'd like to see /proc/self/mountinfo. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/700910 Title: Unable to install GRUB2 to the same device as contains aufs in natty -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs