Date: Thu, 12 Jan 2006 00:47:09 -0800 From: David Leimbach <leimy2k@gmail.com> To: Julian Elischer <julian@elischer.org> Cc: alan bryan <alanbryan1234@yahoo.com>, freebsd-current@freebsd.org Subject: Re: FreeBSD on Intel Macs? Message-ID: <3e1162e60601120047u3b7d6c29x6ba1f0d69bf2d0fb@mail.gmail.com> In-Reply-To: <43C5B4B2.9000707@elischer.org> References: <20060111212605.79848.qmail@web34104.mail.mud.yahoo.com> <43C57A7A.3080802@elischer.org> <3e1162e60601111405x59e7e70dyf57c74b01e888e8a@mail.gmail.com> <43C5B4B2.9000707@elischer.org>
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On 1/11/06, Julian Elischer <julian@elischer.org> wrote: > David Leimbach wrote: > > > > > > > On 1/11/06, *Julian Elischer* <julian@elischer.org > > <mailto:julian@elischer.org>> wrote: > > > > alan bryan wrote: > > > > >I read that the new Intel (x86) Macs use EFI rather > > >than the traditional PC Bios to boot up. I'm > > >interested in using one of these to multiboot OS X and > > >FreeBSD and am wondering if it is yet known to work or > > >not. Do any changes need to be made to FreeBSD or > > >should it work out of the box? Thanks for any insight > > >and I know that it may be impossible to fully answer > > >until people get their hands on the hardware but I > > >just wanted to start thinking about the possibilities. > > > > > > > > well if they can boot Darwin I'm sure they can be hacked to boot > > FreeBSD. > > It would probabty require a different bootloader binary. > > > > > > > > I don't see what booting Darwin has to do with booting FreeBSD. > > > If they were bastards they could refuse to load anything that wasn't in > some format or didn't > decrypt with some public key. I doubt they wouod do that but since they > control the > horizontal and the vertical they COULD do it. > > It is possible that the boot loader sequence may require a stage that is > in some format > supported by the apple firmware, depending on how wired down they have > made it. > EFI has a pretty interesting specification we can read about. Unless they've done something exceedingly funky to it, I think it should be pretty easy to boot other OSes with it. > > > > However, since FreeBSD boots on IA64 using the FreeBSD bootloader for > > IA64, I *hope* it won't be much work to port whatever changes that > > requires to IA32. > > > On apple hardware? > I haven't heard this.. There is no IA64 apple hardware and likely never will be [Itanium]. I think you may have thought I was talking about x86-64 or AMD64/EM64T. EFI was originally deployed on IA64 years ago and FreeBSD has supported it at at least some point. Also my fellow L4 developers have used the FreeBSD EFI-enabled bootloader to load L4 programs. That's all I was referring to, I didn't mean to imply anyone has run FreeBSD on Apple intel hardware. Dave
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