From owner-freebsd-current@FreeBSD.ORG Fri Sep 5 17:37:25 2014 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 8F410FEF; Fri, 5 Sep 2014 17:37:25 +0000 (UTC) Received: from webmail2.jnielsen.net (webmail2.jnielsen.net [50.114.224.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "webmail2.jnielsen.net", Issuer "freebsdsolutions.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 52A1A150C; Fri, 5 Sep 2014 17:37:24 +0000 (UTC) Received: from [10.10.1.198] (office.betterlinux.com [199.58.199.60] (may be forged)) (authenticated bits=0) by webmail2.jnielsen.net (8.14.9/8.14.9) with ESMTP id s85HbLQm075507 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Fri, 5 Sep 2014 11:37:24 -0600 (MDT) (envelope-from lists@jnielsen.net) X-Authentication-Warning: webmail2.jnielsen.net: Host office.betterlinux.com [199.58.199.60] (may be forged) claimed to be [10.10.1.198] Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: UEFI display frozen on Retina MacBook Pro From: John Nielsen In-Reply-To: <20140905173019.GF36287@hub.FreeBSD.org> Date: Fri, 5 Sep 2014 11:37:21 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: <97975F21-B733-4549-8ED8-8E86CBE6DEA7@jnielsen.net> References: <9C939A39-79DA-44A7-8C8C-48B6423B50D4@jnielsen.net> <20140905173019.GF36287@hub.FreeBSD.org> To: Glen Barber X-Mailer: Apple Mail (2.1878.6) Cc: FreeBSD Current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Sep 2014 17:37:25 -0000 On Sep 5, 2014, at 11:30 AM, Glen Barber wrote: > On Fri, Sep 05, 2014 at 11:20:21AM -0600, John Nielsen wrote: >> I have a "MacBook Pro Retina, Mid 2012" (MacBookPro10,1) on which I'd = like to be able to boot FreeBSD from an external USB drive. For testing = I've been using the mini-memstick images from the -CURRENT snapshots, = most recently the one from 20140903. >>=20 >> I am able to select "EFI Boot" on the USB device from the Mac's boot = menu, and it does _something_, but the screen never changes--the image = of the boot menu is displayed indefinitely. I think it is actually = booting since there is drive activity and the caps lock key indicator = starts working a few seconds in, but the screen just stays the same. = Thinking the resolution of the Retina display may have been an issue, I = tried booting with it disabled (lid closed) and an external monitor and = keyboard. The result was the same--Mac boot menu frozen on the external = display. >>=20 >> Is there anything I should try to troubleshoot or debug this issue? = Anything else I should include in a PR? I can test patches if needed = (probably after building an image including the patch from a VM). >>=20 >=20 > To be clear, which boot menu do you see? If you see the FreeBSD = loader > menu, escape to the loader prompt and try: >=20 > set kern.vty=3Dvt > set hw.vga.textmode=3D1 > boot >=20 > I am a bit unclear under which conditions 'hw.vga.textmode=3D1' is > required, though. No, I don't ever see the FreeBSD loader. I see the menu you get on a Mac = when you hold down the option (alt) key while booting--big disk icons = representing the bootable disks/partitions in the system. In my case it = was the "Macintosh HD" volume (Mac OS Mavericks), my Windows partition, = and the USB stick with the FreeBSD memstick image on it, which the Mac = just called "EFI Boot" (and the icon was that of a USB disk). There is = also a little section at the bottom that allows wifi network booting (if = you've done all the black magic (not PXE) to get that to happen). It = shows a circular activity animation while it scans for wireless = networks. That animation stops when I select the USB EFI icon and press = enter (and that is the only visual indication I get that I made a = selection). JN