On Wed, Oct 18, 2023 at 7:37 PM Osama Albahrani via test <test@lists.fedoraproject.org> wrote:
Hi!

I wanted to test Fedora Rawhide so I ran `dnf system-upgrade download --releasever rawhide --exclude=sdubby` (as per https://bugzilla.redhat.com/show_bug.cgi?id=2243872#c12) to upgrade from Fedora 39 and it finished successfully. However after I ran `dnf system-upgrade reboot` and got a black screen after the system upgrade progress bar. And I can no longer boot into the Fedora partition and only get a black screen. Before that, I was able to use Fedora 39 alongside macOS just fine.

Has anyone been able to run Rawhide on an x86 MacBook Pro (2016) or a similar x86 Mac* device? And what can I do to further investigate the boot issue?

Can you display the GRUB menu (listing all the installed kernels), when you repeatedly press F8 after starting the laptop? (A question is whether Mac keyboard actually sends F8 by default, perhaps connect an external one). If you can see GRUB, try older kernels. On the latest kernel, you can edit the command line and remove "rhgb quit" to see some boot debug messages.
 

Note: I noticed that after the upgrade, the name in the mac boot menu changed from “Fedora” to “UEFI Boot” and the symbol is still the Fedora logo, not sure what this means. So could it be the efibootmgr-related bug that was recently fixed in the Fedora 39 nightly ISO (https://bugzilla.redhat.com/show_bug.cgi?id=2239316)?

Note 2: I also couldn't go past the initial menu when I used the Fedora Rawhide ISO a few days ago (around Oct 10 iirc), not sure if this is related.

If you decide to reinstall F39 on that laptop, I'd recommend just continuing testing with Rawhide ISOs, so that you don't break your system again needlessly. The ISO needs to boot, that's a prerequisite. If it doesn't, please file a bug and link it here, we'll make it a blocker bug for Fedora 40.

Thanks for testing.