How to point grub to usable efi vmlinuz files?

[Geezanansa]

Hi all,

Have recently taken an interest in EFI boot feature on newer systems.

Using an Ubuntu 12.10 amd64 Desktop dvd on an EFI capable machine have Grub boot options screen running in EFI mode. Selecting "Try Ubuntu without installing" or "Install Ubuntu" gives "can not read cd/0" and "the kernel needs to be loaded first" errors.
Trying latest release of other distros gives similar results. Trying booting newer and older flavours of Ubuntu gives similar results when booting EFI mode and trying any of the options available to boot to.
Dropping to grub command line and trying

search -f /vmlinuz

or

search -f /sbin/init

only confirms missing EFI files.
**Update:** Can not repeat the results using those commands but do get similar output from using

ls -l

from grub prompt which gives


How to point grub to usable EFI files in order to boot "Try Ubuntu without installing"?

[Geezanansa]

This question was reasked/moved to http://ubuntuforums.org/showthread.php?t=2149013