On Thu, Jul 26, 2012 at 01:17:58PM -0400, Peter Jones wrote: > On 07/26/2012 06:32 AM, Pasi Kärkkäinen wrote: > >UEFI boot fails with all of the listed operating systems. Symptoms: > > > >- I get the Fedora/RHEL EFI boot menu, and I let it boot with the default > >options. > >- I get text on the screen about allocating memory pages for Linux-EFI, > >loading VMLINUZ, etc. > >- The screen goes empty/black, there's only a cursor blinking, and nothing > >happens.. > >- The boot failed or is stuck with nothing happening. I need to reset the > >box. > > > >It looks like Linux kernel doesn't get started at all.. so it could be a UEFI > >firmware or a bootloader problem. > > > >I'm actually expecting this is an Intel BIOS/UEFI firmware bug, because I've > >seen reports about UEFI boot problems on other Intel 7-series chipset > >as well. > > > >Does anyone know how to debug/troubleshoot UEFI boot problems? > > The fact that the cursor is blinking is a bit strange; if grub has attempted > to boot the kernel, that's unexpected. Nevertheless, one thing to try is > to add "noefi" to the kernel command line. If it gets farther, that's an > indication that we're hitting a kernel bug. > "noefi" kernel cmdline option didn't help unfortunately. When booting Fedora 17 x64 there's the GRUB bootloader with graphical background image, I let it boot the default entry "Fedora 17", I see it the allocating memory pages, loading VMLINUZ etc, and then the display mode / resolution changes, and then there's just blank screen and a cursor blinking.. Does that ring any bells? I forgot to mention earlier that fedora/rhel works OK using legacy BIOS boot, so only UEFI is problematic on this box. I'm pretty sure this is a Intel firmware bug, but it'd be nice to be able to confirm that somehow.. Thanks for the reply! -- Pasi -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
