From owner-freebsd-hackers@FreeBSD.ORG Thu May 28 01:48:07 2015 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 9C02F785 for ; Thu, 28 May 2015 01:48:07 +0000 (UTC) (envelope-from rpokala@panasas.com) Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0083.outbound.protection.outlook.com [65.55.169.83]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (Client CN "mail.protection.outlook.com", Issuer "MSIT Machine Auth CA 2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 40713E2 for ; Thu, 28 May 2015 01:48:06 +0000 (UTC) (envelope-from rpokala@panasas.com) Received: from CY1PR08MB1803.namprd08.prod.outlook.com (25.162.218.25) by CY1PR08MB1803.namprd08.prod.outlook.com (25.162.218.25) with Microsoft SMTP Server (TLS) id 15.1.172.22; Thu, 28 May 2015 01:47:57 +0000 Received: from CY1PR08MB1803.namprd08.prod.outlook.com ([25.162.218.25]) by CY1PR08MB1803.namprd08.prod.outlook.com ([25.162.218.25]) with mapi id 15.01.0172.012; Thu, 28 May 2015 01:47:57 +0000 From: "Pokala, Ravi" To: "freebsd-hackers@freebsd.org" Subject: Quick question re: dual-booting Thread-Topic: Quick question re: dual-booting Thread-Index: AQHQmOhRwFcAubfNGkewxHqQPpAgtw== Date: Thu, 28 May 2015 01:47:55 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.4.9.150325 authentication-results: spf=none (sender IP is ) smtp.mailfrom=rpokala@panasas.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [64.80.217.3] x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:CY1PR08MB1803; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(601004)(5005006)(520003)(3002001); SRVR:CY1PR08MB1803; BCL:0; PCL:0; RULEID:; SRVR:CY1PR08MB1803; x-forefront-prvs: 0590BBCCBC x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(6009001)(164054003)(189002)(199003)(2501003)(99286002)(106116001)(106356001)(2351001)(50986999)(2656002)(92566002)(83506001)(102836002)(87936001)(86362001)(101416001)(64706001)(5001860100001)(68736005)(5001830100001)(36756003)(110136002)(46102003)(2900100001)(122556002)(105586002)(450100001)(4001350100001)(40100003)(66066001)(107886002)(54356999)(62966003)(97736004)(5001960100002)(77156002)(229853001)(81156007)(4001540100001)(5002640100001)(189998001); DIR:OUT; SFP:1101; SCL:1; SRVR:CY1PR08MB1803; H:CY1PR08MB1803.namprd08.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en; received-spf: None (protection.outlook.com: panasas.com does not designate permitted sender hosts) Content-Type: text/plain; charset="us-ascii" Content-ID: <8D558176661A674D97636EC60B039A63@namprd08.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: panasas.com X-MS-Exchange-CrossTenant-originalarrivaltime: 28 May 2015 01:47:56.0076 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: acf01c9d-c699-42af-bdbb-44bf582e60b0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR08MB1803 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 May 2015 01:48:07 -0000 Hi folks, For doing some apples-to-apples comparisons on a piece of hardware, we want to be able to easily flip back and forth between FreeBSD (10.1, amd64, traditional non-UEFI bootstrap w/ GPT) and Linux. To minimize the chance of an installer going wrong and nuking something, we're installing one drive, installing FreeBSD on it, then swapping in another drive and installing Linux on it. Then we'll install both drives, and let the bootloader control which one gets booted. The question is: how do we tell the bootloader which OS to boot? If we can do it using loader, great! If we have to use something like grub, that's fine too. But either way, I need some guidance. Thoughts? Thanks, Ravi