F21 install experience on iMac (5K retina)

[Chris Murphy]

On Mon, Jan 26, 2015 at 12:51 PM, Andreas Tunek <andreas.tunek at gmail.com> wrote:

> Problems
>
> Linux can't find the correct resolution of the screen, see
> https://bugzilla.redhat.com/show_bug.cgi?id=1184204

Not sure about that.

>
> The computer seems to boot into Linux as default, it would have been
> nice if you could choose that somehow.

If you hold the option key during the boot chime, you'll get the
option to boot OS X. Then you can go to System Preferences > Startup
panel, and choose OS X to boot by default again. And then to boot
Fedora, you can use the option key at boot chime.

I haven't really figured out the logic, but different Mac models and
firmware versions have different priorities for NVRAM boot entries vs
a hint in the HFS+ volume header for which volume to boot by default.
Therefore using efibootmgr -n or  -O may or may not work on your
particular model; but the OS X Startup panel appears to alter
something on disk and has been more reliable for me for setting
default boot OS.



-- 
Chris Murphy