I opened bug 701351 to track the nearly-identical problem, as it occurs for mdraid version(s) 1.0, 1.1 and 1.2
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/527401 Title: grub-installer fails to install on a raid1 array -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs