From owner-freebsd-fs@FreeBSD.ORG Thu Aug 9 10:57:43 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id CEAD4106566B; Thu, 9 Aug 2012 10:57:43 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from forward4.mail.yandex.net (forward4.mail.yandex.net [IPv6:2a02:6b8:0:602::4]) by mx1.freebsd.org (Postfix) with ESMTP id 3A7D38FC1B; Thu, 9 Aug 2012 10:57:43 +0000 (UTC) Received: from smtp3.mail.yandex.net (smtp3.mail.yandex.net [77.88.46.103]) by forward4.mail.yandex.net (Yandex) with ESMTP id BE0021BC1BDE; Thu, 9 Aug 2012 14:57:41 +0400 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1344509861; bh=R8TuQ+0BEi5A+B5fwi7f4CfO8y7u9soSrse9EKBvdx8=; h=Message-ID:Date:From:MIME-Version:To:CC:Subject:References: In-Reply-To:Content-Type; b=axRggd5l9vpjBy4X4VLzETqw6ecWQYNFYKmeEtwWfFZ7PV3/h8LDXjXsne2DXWi4g 8I5hbh+BWNMa61R1lzn+LGLRAYReYeVxPGXgj33Y0pG61D/TcI/NaR+2kfpOPaUHFr x6cNQNTqgHk6hYjCh1Db0bKjDx0afepVif+UZG7w= Received: from smtp3.mail.yandex.net (localhost [127.0.0.1]) by smtp3.mail.yandex.net (Yandex) with ESMTP id 88CB71BA0344; Thu, 9 Aug 2012 14:57:41 +0400 (MSK) Received: from mail.kirov.so-ups.ru (mail.kirov.so-ups.ru [178.74.170.1]) by smtp3.mail.yandex.net (nwsmtp/Yandex) with ESMTP id vaJ8s03S-vdJ8GRnS; Thu, 9 Aug 2012 14:57:41 +0400 X-Yandex-Rcpt-Suid: lstewart@freebsd.org X-Yandex-Rcpt-Suid: freebsd-fs@freebsd.org X-Yandex-Rcpt-Suid: marcel@FreeBSD.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1344509861; bh=R8TuQ+0BEi5A+B5fwi7f4CfO8y7u9soSrse9EKBvdx8=; h=Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject: References:In-Reply-To:X-Enigmail-Version:Content-Type; b=wTCYaNL6TpwAOm0mfzjmvwz70Fxzb9tlMcWn1Rawi7VMLs0QEXuqcb3C2KjEEJqlr pe3n8MS8wRXZAGyZckiRVYjejP7bD3NfWeTEJmhdSWiEKjxalfKW7+qOU0Ode3/wQ2 dtNkOBpUmEGpJWT3cX/hq4rmJnNSRNwYr2cMrP+w= Message-ID: <5023979B.4010903@yandex.ru> Date: Thu, 09 Aug 2012 14:57:31 +0400 From: "Andrey V. Elsukov" User-Agent: Mozilla Thunderbird 1.5 (FreeBSD/20051231) MIME-Version: 1.0 To: Lawrence Stewart References: <50237B73.9040301@freebsd.org> In-Reply-To: <50237B73.9040301@freebsd.org> X-Enigmail-Version: 1.4.2 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigCB4E32ED76DB1FA8FC647229" Cc: "freebsd-fs@freebsd.org" , Marcel Moolenaar Subject: Re: gpart rewrites pmbr in a way which breaks Win 7 EFI bootloader X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Aug 2012 10:57:44 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigCB4E32ED76DB1FA8FC647229 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable On 09.08.2012 12:57, Lawrence Stewart wrote: > After identifying the cause of the problem and a workaround (please see= the README.txt at the above > URL for full details and pre/post gpart dumps of the MBR+GPT), I have t= he following questions: >=20 > - Should gpart be writing 0x80 (active) in the protective MBR entry? AFAIK, this was added because some BIOS could not boot without it. > - Why is Windows EFI bootloader so sensitive to 0x80 in pmbr? This question you should ask to the Microsoft. :) > - Should gpart be silently rewriting the protective MBR entry at all wh= en only asked to make changes > to the GPT? The PMBR is part of GPT metadata described in the UEFI spec. So, I think = it can. --=20 WBR, Andrey V. Elsukov --------------enigCB4E32ED76DB1FA8FC647229 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) iQEcBAEBAgAGBQJQI5egAAoJEAHF6gQQyKF6QvgH/iPjNJAIYAUuEAa07+mN+TA5 flaGVh3IAYPX6azxkbntjQ3UHmSn9supba+6hLNfMrgNOYdmKdntfFL1WVJR8Tah lkmThWSV5IeLZM/L41G8k4bPe0cwGHhxupYqzG6pddMZamK8pNm2ERsZUBtSYidi L75ZvR3VTfl5lvRmKMzAZ5pKBjFsDBUVh3XMQ6HzZpGvIwH86t1mmZuspZSIr/Kf P65GZUFiNOOJ02xVjKIQR8ljJQM1BnMZ8K8qIurIvK+xaZVRn06EdgvGSJgDSZgX ibG8icV2apwON/trxst0cYXaOlP+CCEJr9H/SStJ8L1mtAN3NS6Tagez16sTEkM= =hjMX -----END PGP SIGNATURE----- --------------enigCB4E32ED76DB1FA8FC647229--