From owner-freebsd-stable@FreeBSD.ORG Tue Nov 11 20:23:40 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A0012106567D for ; Tue, 11 Nov 2008 20:23:40 +0000 (UTC) (envelope-from peter@wemm.org) Received: from wf-out-1314.google.com (wf-out-1314.google.com [209.85.200.175]) by mx1.freebsd.org (Postfix) with ESMTP id 9597C8FC14 for ; Tue, 11 Nov 2008 20:23:40 +0000 (UTC) (envelope-from peter@wemm.org) Received: by wf-out-1314.google.com with SMTP id 24so58849wfg.7 for ; Tue, 11 Nov 2008 12:23:40 -0800 (PST) Received: by 10.142.224.5 with SMTP id w5mr3133011wfg.243.1226435020244; Tue, 11 Nov 2008 12:23:40 -0800 (PST) Received: by 10.142.255.21 with HTTP; Tue, 11 Nov 2008 12:23:40 -0800 (PST) Message-ID: Date: Tue, 11 Nov 2008 12:23:40 -0800 From: "Peter Wemm" To: Volker In-Reply-To: <4919E65C.1020307@vwsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <4912E462.4090608@icyb.net.ua> <491586B9.2020303@vwsoft.com> <4919851B.7050800@icyb.net.ua> <4919E65C.1020307@vwsoft.com> Cc: FreeBSD Stable , Andriy Gapon , freebsd-usb@freebsd.org Subject: Re: usb keyboard dying at loader prompt X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Nov 2008 20:23:40 -0000 On Tue, Nov 11, 2008 at 12:09 PM, Volker wrote: > On 11/11/08 19:55, Peter Wemm wrote: >> ... >> * There were other consequences of using the partition ID hack - I >> think I remember it turning off the apic for msdos mode. >> >> Your problems may be different, but mine were caused by a BIOS >> whitelist of MBR partition id's. What a stupid problem. On that >> motherboard I ended up taking the path of least resistance and using >> the PS/2 adapter plug on the keyboard. > > Peter, > > very interesting what you've found. That reminds me on some > investigations I did as I was hunting USB boot device problems. > > Some BIOSes do not check the partition (slice) ID but are looking for a > file system magic. If a FAT filesystem is detected, the BIOS does some > stupid things (like ignoring the active partition flag and booting the > FAT slice no matter what you've flagged active). Just an example and > off-topic to Andriy's keyboard problem. > > But when combining that with your findings, it may still be a thing to > check for... ;) > > Volker I have long since stopped being surprised by what bios writers come up with. Or should I say "windows boot loader" instead of bios, because that is what it seems to have degenerated into these days. -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com; KI6FJV "All of this is for nothing if we don't go to the stars" - JMS/B5 "If Java had true garbage collection, most programs would delete themselves upon execution." -- Robert Sewell