From owner-freebsd-questions@FreeBSD.ORG Thu Feb 18 02:11:45 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A739C1065670 for ; Thu, 18 Feb 2010 02:11:45 +0000 (UTC) (envelope-from rocwhite168@163.com) Received: from m13-176.163.com (m13-176.163.com [220.181.13.176]) by mx1.freebsd.org (Postfix) with ESMTP id AA0F18FC1D for ; Thu, 18 Feb 2010 02:11:44 +0000 (UTC) Received: from rocwhite168 ( [75.73.20.64] ) by ajax-webmail-wmsvr176 (Coremail) ; Thu, 18 Feb 2010 09:56:39 +0800 (CST) Date: Thu, 18 Feb 2010 09:56:39 +0800 (CST) From: rocwhite168 To: freebsd-questions@freebsd.org Message-ID: <3ef0da.2708.126deca8484.Coremail.rocwhite168@163.com> MIME-Version: 1.0 X-Originating-IP: [75.73.20.64] X-Priority: 3 X-Mailer: Coremail Webmail Server Version SP_ntes V3.5 build 100128(9785.2895.2888) Copyright (c) 2002-2010 www.mailtech.cn 163com X-CM-CTRLDATA: +UKn12Zvb3Rlcl9odG09OTk2OjQ0 X-CM-TRANSID: sMGowKBb2DNXnnxLwPNeAQ--.48932W X-CM-SenderInfo: purf4xplwhilqy6rljoofrz/1tbiqwx7sUgYt1iMFQABsK X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== Content-Type: text/plain; charset=gbk Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Can't boot off the USB image X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Feb 2010 02:11:45 -0000 My computers (Dell SX280 PCs or Dell D600 laptop) seem to refuse to boot off the USB disk with non-Windows images written to it (I have also tried OpenSolaris images). I've tried using dd to write the .img files, or using unetbootin to write either .img or .iso images, or using UltraISO to write the iso files to my USB disk, but all the methods failed. But if the image was a Windows boot disk, it did work. Does anyone know what the problem could be? Is it simply because the computers are old enough? Or do I have to do anything special for the FreeBSD images to make the computers boot off a USB device? Thank you very much!