This is what happened. I was using 12.04 beta. I was asked by update manager to make required updates, which I did. I shut down my pc that night and the next day I was not able to boot in xwindows or graphical interface. I tried several threads from this forum still was unsuccessful, so I decided to remove beta and do a fresh install of Ubuntu 12.04, which I did.
I went in windows 7, in disk management tool I deleted linux volume and swap volume. Then when I rebooted I was stuck with a grub rescue screen. I was not able to boot in windows 7. I went through several threads from this forum and elsewhere and learning that boot-repair (https://help.ubuntu.com/community/Boot-Repair) was the best option. I did that. I clicked on recommended repair and wolla!! I got my windows 7 back. So I decided to install Ubuntu 12.04 again. I did and when I rebooted I was not asked for OS options and was directly taken to windows 7. I tried this thread https://help.ubuntu.com/community/Grub2#Reinstalling_GRUB2 but I am still not able to go into ubuntu or get a boot loader screen. I guess my grub messed up pretty badly when I deleted linux on the first place.
My boot info summary http://paste.ubuntu.com/954260/
Your kindest suggestions will be helpful.