How can we make F17 be able to boot on Macs (with or without reFit)

Adam Williamson awilliam at
Fri Dec 2 18:55:45 UTC 2011

On Fri, 2011-12-02 at 19:48 +0100, Andreas Tunek wrote:
> 2011/12/2 Adam Williamson <awilliam at>:
> > On Fri, 2011-12-02 at 12:08 +0100, Andreas Tunek wrote:
> >> As you all might know, it is currently impossible to boot the default
> >> install of F16 on Macs.
> >
> > I'm not entirely sure that's correct. We had several reports of
> > successful EFI installs of F16 in the relevant bug reports at RC stage.
> >
> > What are you basing this apparently authoritative declaration on?
> > --
> As far as I know, you can only install if you use the nopgt kernel
> parameter or change the partitions after the install. I could of
> course be wrong, but nothing I found contradicted these facts.
> On my own iMac, when I tried to do preupgrade from the working F15 to
> F16 the system would not boot into F16. I the tried to install the
> live CD and I could not get that to boot either. I tried both using
> reFit and using the whole disk.
> Has anyone managed to install F16 on a Mac without using any extra
> options such as nopgt or changing partion flags after install?

Probably the guy who has the best handle on it is Chris Murphy, though I
don't know if he follows this list. He did quite a lot of testing of F16
on Macs and seems to have the best understanding of how exactly Apple's
Very Very Special firmware works. See .
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | adamwfedora

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