dual boot vista and ubuntu, lost after changes to vista
i dual boot vista and ubuntu, i run ubuntu of a usb harddrive. a while back i made some changes to vista and when i restarted my dual boot screen did not come up. i looked for answers couldnt find any and just reinstalled ubuntu. i now have a back up of grub file but i need to know how i can fix this if it happens again. i saw something like this
but that did not work for me because the hd i use for ubuntu is usb and i dont know the directory for it. what to do?