[ubuntu] Grub 2 dual boot issue with windwos 8

I have a samsung laptop with preinstalled windows 8. I installed ubuntu 12.10 without any error. After ubuntu install I could not boot ubuntu, so I started it from DVD and execute the boot repair. With recommended repaire the entire boot messed up - no ubuntu, no windows 8. Then I ran boot repair / advanced option and checked the secure boot flag in. Then grub boot ubuntu, but does not boot windows, although there are 4 grub entries for windows 8:
Windows UEFI loader
- it stops with can't find drivemap command
Windows 8 (loader) (on /dev/sda2)
Windows 8 (loader) (on /dev/sda4)
- this two stops with inappropriate EFI path
Windows Recovery Environment (loader) (on /dev/sda6)

Then I went through on this entry: http://ubuntuforums.org/showthread.php?t=2072950
and created the custom grub 2 entry for windows 8
menuentry "Windows 8" { insmod part_gpt insmod fat insmod search_fs_uuid insmod chain set root='(hd0,gpt1)' search --fs-uuid --no-floppy --set=root 4f84-ee2e chainloader (${root})/efi/Microsoft/Boot/bootmgfw.efi }

It results "secure boot forbids loading module from... " error message.



I attached the bootinfo output.

Any help would be appreciated - since I have no idea how to proceed.