I used to dual boot Windows 7 and ubuntu 12.10 on my Dell XPS 15, now I installed Windows 8 Pro and now Ubuntu does not appear during Boot.
There was a similar question asked in some other forum and the solution suggested was to boot with the ubuntu CD.
I did the same and tried to boot with the CD , I get the error that
No Operating system found and Windows 8 loads again.
I will be really grateful if someone can suggest a solution for this.