Date: Sat, 8 Apr 2006 11:50:14 +0100 From: Bruce M Simpson <bms@spc.org> To: Luigi Rizzo <rizzo@icir.org> Cc: Mark Sergeant <msergeant@snsonline.net>, freebsd-current@freebsd.org Subject: Re: [DOCUMENT] Re: Intel Macs that boot FreeBSD? Message-ID: <20060408105014.GV80492@spc.org> In-Reply-To: <20060408034357.A44217@xorpc.icir.org> References: <4433CFA1.90509@centtech.com> <2C74BB8F-271B-4505-9D94-B270B3A4ACBA@nordahl.net> <44348603.9070503@FreeBSD.org> <20060406190944.G56354@lexi.siliconlandmark.com> <4435B303.5040205@FreeBSD.org> <196C209A-A585-4AD5-B7C9-A27DD57ECD8C@snsonline.net> <20060408103224.GR80492@spc.org> <20060408034357.A44217@xorpc.icir.org>
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On Sat, Apr 08, 2006 at 03:43:58AM -0700, Luigi Rizzo wrote: > Ii wonder if we can do more progress if we use > a picobsd-like approach namely bypass btx and load the kernel > directly. Reading your list we may well get stuck at the pci > probe, but at least we should see the initial kernel messages. I would suggest that anyone who wants to get FreeBSD booting on the mini-mac purchases a port 0x80 POST diag card (<$10 on eBay), and instruments the early boot paths to output to such a device. If hacking kernel code then probably quicker to just use NFS and PXE for starter bootstrap :-) Of course those of us who are lucky enough to have a PCI logic analyzer (not me, though I bought an FPGA card explicitly for this purpose, ENOTIME to learn hardware design language) will be able to do this right away. It shouldn't be too difficult to implement PCI Configuration Register Type 1 support. Ideally of course we'd support EFI natively w/o the shim. Regards, BMS
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