Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 27 Jul 2002 17:50:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 27 Jul 2002 17:50:18 -0400 Received: from ziggy.one-eyed-alien.net ([64.169.228.100]:20747 "EHLO ziggy.one-eyed-alien.net") by vger.kernel.org with ESMTP id ; Sat, 27 Jul 2002 17:50:17 -0400 Date: Sat, 27 Jul 2002 14:49:22 -0700 From: Matthew Dharm To: David Ford Cc: linux-kernel@vger.kernel.org, linux-usb-users@lists.sourceforge.net Subject: Re: Linux booting from USB HD / USB interface devices Message-ID: <20020727144922.E2730@one-eyed-alien.net> Mail-Followup-To: David Ford , linux-kernel@vger.kernel.org, linux-usb-users@lists.sourceforge.net References: <3D42E333.4010602@blue-labs.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="WBsA/oQW3eTA3LlM" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3D42E333.4010602@blue-labs.org>; from david+cert@blue-labs.org on Sat, Jul 27, 2002 at 02:15:15PM -0400 Organization: One Eyed Alien Networks X-Copyright: (C) 2002 Matthew Dharm, all rights reserved. X-Message-Flag: Get a real e-mail client. http://www.mutt.org/ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2126 Lines: 68 --WBsA/oQW3eTA3LlM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Jul 27, 2002 at 02:15:15PM -0400, David Ford wrote: > Linux booting from USB HD >=20 > 1) Most motherboard vendors (that mention Linux) are indicating Linux=20 > 2.4.x for support. How is the USB Mass storage support in 2.4.19+? It works nicely for many people. > 2) There are some vague comments about some devices requiring the=20 > ability to boot, are there some USB hard drives that are incapable of=20 > acting as a boot device? Yes. They are few, tho. The USB-IF is currently working on a bootability standard to eliminate this problem. > 3) I don't suspect there is anything tricky or nonstandard that I'd need= =20 > to do on the USB drive, do I need corrected? No correction. > 4) What kind of USB hard drives are well supported in Linux? See www.linux-usb.org for a link to a list of good devices. > 5) What kernel issues do I need to be aware of? THe stock kernel won't work. There are patches floating around to make this work. Basically, the kernel needs to pause for a couple of seconds before attempting to mount the root fs so that the plug-n-pray detection can work, identify the drive, and get going. Matt --=20 Matthew Dharm Home: mdharm-usb@one-eyed-alien.= net=20 Maintainer, Linux USB Mass Storage Driver Okay, this isn't funny anymore! Let me down! I'll tell Bill on you!! -- Microsoft Salesman User Friendly, 4/1/1998 --WBsA/oQW3eTA3LlM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE9QxViIjReC7bSPZARArgmAKCp4Fw9l/M/fY3kU1GDNYSIl/nTfwCfZljG W4qIxCQLXyuAUFXBBKBriIE= =SQnb -----END PGP SIGNATURE----- --WBsA/oQW3eTA3LlM-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/