Re: [PATCH, RFC, RFT] Mactel integration

[Mads Kiilerich]

On 11/28/2011 02:25 PM, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> Hello all. Based on the information from
> http://mjg59.dreamwidth.org/7468.html I intend to add support for such
> install. It requires a small HFS+ volume mounted at /boot/mactel. I also
> simplify handling of EFI directories by adding explicit option to
> specify it and removing some "compatibility" kludges (they don't make
> anything compatible with anything since "old behaviour" was mostly not
> to install at all) which made the code in question difficult to
> maintain.

Matthew will perhaps give a more thorough response, but I would like to 
add a few quick comments.

Matthew also created http://www.codon.org.uk/~mjg59/mactel-boot/ , so 
there seems to be some duplicate work there.

His approach is discussed further on 
https://bugzilla.redhat.com/show_bug.cgi?id=755093 .

A quick summary is that it (in my opinion) is a bit unclear what Macs 
_really_ needs. There are several ways grub can be used to boot Macs, 
and it is not completely clear whether HFS blessing or HFS is necessary 
at all. The Mac boot loader detects FAT partitions and will by default 
also boot from /EFI/BOOT - also on the system partition. The OS/X 
"Startup Drive" configuration is a bit more sensitive, but it seems like 
what it writes to PRAM/VRAM is more important than the HFS blessing.

/Mads