From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757769Ab2CLWXh (ORCPT ); Mon, 12 Mar 2012 18:23:37 -0400 Received: from terminus.zytor.com ([198.137.202.10]:55506 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757339Ab2CLWXg (ORCPT ); Mon, 12 Mar 2012 18:23:36 -0400 Message-ID: <4F5E775D.7080702@zytor.com> Date: Mon, 12 Mar 2012 15:23:25 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120209 Thunderbird/10.0.1 MIME-Version: 1.0 To: Shea Levy CC: linux-kernel@vger.kernel.org, matt.fleming@intel.com Subject: Re: EFI Boot Stub Early Console References: <4F5E46EA.7020602@shealevy.com> <4F5E47E4.2070303@shealevy.com> <4F5E74A0.60001@zytor.com> <4F5E761B.7010608@shealevy.com> In-Reply-To: <4F5E761B.7010608@shealevy.com> X-Enigmail-Version: 1.3.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/12/2012 03:18 PM, Shea Levy wrote: > On 3/12/12 6:11 PM, H. Peter Anvin wrote: >> On 03/12/2012 12:00 PM, Shea Levy wrote: >>> On 3/12/12 2:56 PM, Shea Levy wrote: >>>> console=tty0 >>> Sorry, that should have been console=ttyS0 >> Have you tried earlyprintk=serial,ttyS0? >> >> -hpa >> > > Just tried. Still nothing in the VirtualBox window, serial port showed > boot output up until "[ 0.000000] console [tty0] enabled, bootconsole > disabled", when the rest of the boot process happened in VirtualBox. > That sounds like one would expect, no? I don't think anyone has implemented an EFI earlyconsole yet, and you can't rely on EFI handing over the screen in a mode the kernel can handle with earlyconsole=vga, so there aren't really any other alternatives. -hpa