I have got a newly bought ASUS N56V with Windows 8 preinstalled.
I needed to install Ubuntu so i partitioned the disk and after having disabled the Secure Boot option from Windows 8 i successfully installed Ubuntu 12.10 from a Live USB. The problem is that if i try to access both to
Windows 8 (loader) and
Windows Recovery System (loader) from the GRUB menu, these two errors show:
can't find command 'drivemap' and
invalid EFI file path and it goes back to the grub menu.
In conclusion I do not have access to my Windows 8 partition but can only use Ubuntu. How can I solve the problem? I am pretty new to the matter.