From owner-freebsd-hackers@FreeBSD.ORG Tue May 31 09:30:49 2011 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1C74F1065670 for ; Tue, 31 May 2011 09:30:49 +0000 (UTC) (envelope-from peterjeremy@acm.org) Received: from fallbackmx07.syd.optusnet.com.au (fallbackmx07.syd.optusnet.com.au [211.29.132.9]) by mx1.freebsd.org (Postfix) with ESMTP id 8A1058FC13 for ; Tue, 31 May 2011 09:30:48 +0000 (UTC) Received: from mail12.syd.optusnet.com.au (mail12.syd.optusnet.com.au [211.29.132.193]) by fallbackmx07.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id p4V7Nt4C021331 for ; Tue, 31 May 2011 17:23:55 +1000 Received: from server.vk2pj.dyndns.org (c220-239-116-103.belrs4.nsw.optusnet.com.au [220.239.116.103]) by mail12.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id p4V7Nm70025655 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 31 May 2011 17:23:50 +1000 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.4/8.14.4) with ESMTP id p4V7NlNI056902; Tue, 31 May 2011 17:23:47 +1000 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.4/8.14.4/Submit) id p4V7Nl35056901; Tue, 31 May 2011 17:23:47 +1000 (EST) (envelope-from peter) Date: Tue, 31 May 2011 17:23:47 +1000 From: Peter Jeremy To: Dieter BSD Message-ID: <20110531072346.GA56848@server.vk2pj.dyndns.org> References: <20110530174243.95200@gmx.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="k+w/mQv8wyuph6w0" Content-Disposition: inline In-Reply-To: <20110530174243.95200@gmx.com> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.21 (2010-09-15) Cc: hackers@freebsd.org Subject: Re: Active slice, only for a next boot X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 May 2011 09:30:49 -0000 --k+w/mQv8wyuph6w0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2011-May-30 17:42:39 +0000, Dieter BSD wrote: >A better approach is to be able to boot whatever slice you >want without having to change the active slice. > >NetBSD can do this. =A0The MBR puts up a menu of the bootable >slices on the disk being booted. =A0You can allow the timer >to time out and boot the default. =A0Or you can enter the number >of the slice you want to boot. =A0Or you can type a function key >F1 F2 ... to boot a different disk, and it will load the MBR >from that disk and run it. =A0There is an alternative for keyboards >without function keys. So can FreeBSD - though only for MBR - this functionality doesn't seem to have made it into the GPT bootcode. >And it works great. =A0Except that one of the 27 stages of boot >code that FreeBSD uses INSISTS on booting the active slice, >so you can tell the MBR to boot slice 3 and slice 3's boot >code sees that slice 4 is active and boots slice 4. Multibooting worked correctly when I last used it (a few years ago). Have you raised this as a PR? >RS-232 console + hardware modem + POTS =3D remote console And even that doesn't fully work unless you have a serial-aware BIOS. --=20 Peter Jeremy --k+w/mQv8wyuph6w0 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (FreeBSD) iEYEARECAAYFAk3kl4IACgkQ/opHv/APuIeN9ACfdJwWxSOlKuosmbgIATQP+wKq YpMAoMFhfRyK4KobphuIXMYk+aXJzJcA =Duuz -----END PGP SIGNATURE----- --k+w/mQv8wyuph6w0--