I also installed edgy this morning in my desktop pc. I let the livecd installer do all the work with grub. I got 3 hard disks at this pc, and i installed ubuntu at /dev/hdc1 (Got Windows/NTFS at hda1 and a storage drive/FAT32 at hcd2).
When i restart the system, hiddenmenu was activated, Windows was not detected and Ubuntu didn't start boot. I think there's something weird with the script that writes menu.lst that screw up the count to set grub devices, because i did correct all settings manually and add Windows to the menu.lst file. So i did boot with livecd and i did mount the ubuntu partition, edit menu.lst and notified that the script configured ubuntu to start from (hd1,0) instead of (hd2,0). I correct it and add the windows entry, remove menu.lst and everything works now. I Think the problem is there. -- Grub upgrade erases Windows boot option https://launchpad.net/bugs/2646 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs