Acer V5-171 Windows 8 + Ubuntu help

[Artifex Maximus]

Hello!

I have an Acer V5-171 laptop with Windows 8 preinstalled. I resize my
partition and left around 32 GB to Ubuntu 13.04 64bit. I would like a dual
boot system.

My system is Secure Boot enabled by default. If I set password for BIOS I
am able to disable Secure Boot which I do not really want at the moment or
add new entries to allowed .efi applications. The BIOS add function only
detect FAT32 formatted drive therefore install CD/DVD is not working.

I format my pendrive to FAT32 and copy all the files from install disk to
USB then I am able to add Ubuntu boot (bootx64.efi) to allowed
applications. On boot when select my new Ubuntu entry, which loads
bootx64.efi, the screen becomes black and nothing else happens. No loading
screen no installer. CTRL+ALT+DEL works so system is probably working and
not hang.

The question is how make such boot pendrive for Secure Boot install? If I
install Ubuntu in UEFI mode is that not break the installed Windows 8? If I
install GRUB on UEFI is it possible to chainload Windows 8?

If the install is impossible with enabled Secure Boot then I try with
disabled SB but first I would like to try with SB enabled.

Bye,
a
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