Install Windows 8 and Ubuntu 13.04 using UEFI boot and third boot as Backtrack 5r3 and grub to select OS at startup

Solution 1:

You can fix this problem in many ways, but either of the following is likely to be easiest:

• Boot a live CD-R or USB flash drive in EFI mode and run Boot Repair. This should get GRUB up and running with Windows detected. The trick is forcing an EFI-mode boot of a live CD. You may need to play with your firmware's boot options. Typically, hitting a function key (which one varies) produces a boot menu, and you should select the one for your live CD that mentions "EFI" or "UEFI."
• Download the CD-R or USB flash drive image of my rEFInd boot manager and prepare a medium with it. You should then be able to boot to it. If rEFInd lets you boot both Windows and Linux, boot to Linux, mount your EFI System Partition (ESP) to /boot/efi, and install the Debian-package version of rEFInd. You'll then use rEFInd to select your OS on subsequent boots.

If one of these fails, try the other one. If you continue to have problems, post back with the URL that Boot Repair provides; this will give us detailed information on your system's configuration.