I have similar problem, but both Windows 7 64bit and Kubuntu are on the same drive - sda1 and sda6 respectively. Windows reboots after few second when animated logo shows, probably just before loading desktop.
Your workaround never worked for me, I just installed grub1 which works just fine. On another computer with similar configuration (the same Windows and Ubuntu) Grub2 boots windows correctly. This bug is probably related to bug #402154 which is marked as solved, but shouldn't be. Another bug concerns Windows XP, but can put some light on this one: bug #454930 Another bug #475881 similar to this, describes the same situation I had. -- Grub2: Windows 7 infinite reboot loop https://bugs.launchpad.net/bugs/486499 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
