Here the details of the bug. The bug is completely reproducible. Hardware: HP ENVY 6-1160ez - Chip: Intel® Core™ i5-3317U (1,7 GHz, 3 MB L3-Cache) - RAM: 8 GB DDR3 - Disk: 500 GB SATA (5400 U/min) + 32 GB mSATA SSD - Display: HD BrightView LED-Display mit einer Diagonalen von 39,6 cm (15,6") und Hintergrundbeleuchtung (1366 x 768) - Graphic: Intel HD Graphics 4000 (bis zu 1,65 GB) - Details: http://www8.hp.com/h20195/v2/GetPDF.aspx/c03548945.pdf - the Laptop comes with pre-installed Windows 8 and UEFI I generated a bootable USB-Stick with another computer under Fedora 17 with: "livecd-iso-to-disk --format --reset-mbr --efi Fedora-18-Beta-x86_64-Live-Desktop.iso /dev/sdg" whereas /dev/sdg is the unmounted USB stick I then inserted the USB stick in the HP-Laptop and booted: -> ESC to enter the startup menu -> press F9 to enter the Boot Manager -> in the Boot Manager select: USB Hard Drive (UEFI) - LaCie iamaKey Then an error message follows: "Selected boot image did not Authenticate. Press <Enter> to Continue." that brings me back to the Boot Manager As an alternative in the Boot Manager: -> in the Boot Manager select: Boot from EFI File -> select: LIVE [Acpi(PNP0A03, 0)/Pci(1410)/Usb(2,0)/HD(Part1, SigEFAOEA4E-3994-49FC-BE59-92E4B42C4336)] -> select <BOOT> -> select BOOTX64.efi (-> alternative select grubx64.efi brings the same solution) Then an error message follows: "Selected boot image did not Authenticate. Press <Enter> to Continue." that brings me back to the Boot Manager My interpretation: The image is correctly put to the USB stick. The USB-stick is correctly recognized by the laptop. Grub does not start because the UEFI-key is not correctly presented. Anybody can provide help? Please let me know if any additional info is required.
Here some additional information to this bug: If I change the setting in the HP computer to "Legacy Support = Enabled" which results at the same time "UEFI = Disabled" then the grub comes up from the USB stick and the Fedora 18 Live Image is loaded correctly. My interpretation: This confirms that the USB stick is correctly setup and the problem is with UEFI
I just gave it another try with Fedora-18-TC3-x86_64-Live-Desktop.iso I generated a bootable USB-Stick with another computer under Fedora 17 with: "livecd-iso-to-disk --format --reset-mbr --efi Fedora-18-TC3-x86_64-Live-Desktop.iso /dev/sdg" whereas /dev/sdg is the unmounted USB stick I then inserted the USB stick in the HP-Laptop and booted: ... and it worked perfectly :-)) . Grub loaded and the started Linux correctly. Perfect!! (Let's see what will happen next)
This is clearly SB. Beta images did not have the MS signature; Final TC3 onwards does. Closing as a dupe of the 'shim is not signed' bug, as that was essentially the 'bug' here. *** This bug has been marked as a duplicate of bug 872272 ***