https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows
Boot Ubuntu.
Fire up grub :
sudo grub
At the grub prompt :
Type: Posts; User: bodhi.zazen; Keyword(s):
https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows
Boot Ubuntu.
Fire up grub :
sudo grub
At the grub prompt :
I am not sure what you are asking either, but this thread has some suggestions :
How to Multi-boot (Maintain more then 2 OS) - Ubuntu Forums