Tak nakonec uspech! Jeste jednou jsem zkusil tento postup, ktery mi byl doporucen jinde + jsem ho uz jednou vygooglil:
During boot sequence, press DEL key in keyboard and go to BIOS settings.
Enable Integrated Peripherals > USB Legacy.
Enable Integrated Peripherals > USB Storage.
Set Boot Order to HDD, CD-ROM, Network.
Now plug in Live USB Boot stick and reboot.
Press F12 at the Boot Screen to bring up the Boot Menu.
Choose HDD+ on the Boot Screen, don’t choose other USB options.
Now choose your USB Device on the next screen and press ENTER.
Se 3.0 flashkou mi to nefungovalo, ale s 2.0 se to nakonec chytlo a zobrazilo se to konecne v nabidce v Boot menu. Cista instalace je teda hotova, zaplat panbuh...a samozrejme diky vsem za rady!