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From: | BALATON Zoltan |
Subject: | Re: [Qemu-devel] osx bootloader |
Date: | Wed, 29 Jan 2014 12:29:17 +0100 (CET) |
User-agent: | Alpine 2.02 (LMD 1266 2009-07-14) |
On Tue, 28 Jan 2014, Gabriel L. Somlo wrote:
But now I think it's starting to make sense. Chameleon's stage2 loader, named "boot" (which we're starting via "-kernel boot", and which is the only piece of Chameleon we need) is apparently equivalent to Apple's "boot.efi", which it bypasses, and which I think is what
AFAIK Chameleon's boot is based on Apple's older, pre-EFI boot loader (http://opensource.apple.com/source/boot/boot-132/) that performs similar functions but does not require EFI and works on BIOS based machines. It is updated to work with recent EFI-only releases, also provides some EFI stuff that's needed by OS X (fake_efi) and has some means of patching up non-Apple hardware to work with OS X. To make sure it's not trying to patch anything try to remove all modules (may need to recompile to get rid of built-in modules) and make sure all *Enabler options are disabled.
Alex was talking about (i.e., eventually getting TianoCore to pick up and run "boot.efi" as left behind by the vanilla OS X installer).
I've also found this: http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=OvmfPkgwhich might be what we need for using Apple's boot.efi but I don't know how ready is it and if it works with OS X.
Regards, BALATON Zoltan
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