From owner-freebsd-performance@FreeBSD.ORG Sun Nov 30 20:26:25 2008 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7B837106564A for ; Sun, 30 Nov 2008 20:26:25 +0000 (UTC) (envelope-from gofp-freebsd-performance@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id F41AD8FC12 for ; Sun, 30 Nov 2008 20:26:24 +0000 (UTC) (envelope-from gofp-freebsd-performance@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1L6ss3-0007YX-7F for freebsd-performance@freebsd.org; Sun, 30 Nov 2008 20:26:23 +0000 Received: from 93-138-125-188.adsl.net.t-com.hr ([93.138.125.188]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 30 Nov 2008 20:26:23 +0000 Received: from ivoras by 93-138-125-188.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 30 Nov 2008 20:26:23 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-performance@freebsd.org From: Ivan Voras Date: Sun, 30 Nov 2008 21:25:59 +0100 Lines: 52 Message-ID: References: <492B3E3E.1000001@softhammer.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig410B2DB8F0B166CEADBBBF9B" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 93-138-125-188.adsl.net.t-com.hr User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) In-Reply-To: <492B3E3E.1000001@softhammer.net> X-Enigmail-Version: 0.95.7 Sender: news Cc: freebsd-questions@freebsd.org Subject: Re: boot loader bug??? X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Nov 2008 20:26:25 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig410B2DB8F0B166CEADBBBF9B Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Stephen Sanders wrote: > This may be a bad list to post to for this problem but I'm having an > issue where in it appears that the boot loader fails and then overwrite= s > the MBR with 0. >=20 > The system boots to : >=20 > F1 - Linux > F3 - FreeBSD > F5 - Drive 1" >=20 > Default: >=20 > But then fails on "boot error". Rebooting will not even make it to the= > prompt above and if one checks the MBR (via a PXE boot), it has been se= t > to 512 bytes of 0. >=20 > Sound familiar? Thanks This is definitely not the right list for your question. Please take it to questions@. There has been one report that points out that some broken BIOSes change disk IDs after booting so that the loader overwrites the boot sector on the wrong disc, but this doesn't look like it's applicable to your problem. You can disable MBR modification by the boot loader with the "noupdate" options to boot0cfg(8). --------------enig410B2DB8F0B166CEADBBBF9B Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkky9tcACgkQldnAQVacBchSxACfdDQUkdeIkfBl3I4H759j9CcU y70AoKRVniHF0sjbtbkKPgcf+h9O76JO =CZ06 -----END PGP SIGNATURE----- --------------enig410B2DB8F0B166CEADBBBF9B--