From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 1C8261381F3 for ; Sun, 20 Oct 2013 13:31:11 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id BDC39E0C4B; Sun, 20 Oct 2013 13:31:06 +0000 (UTC) Received: from mx1.hadt.biz (sil.hadt.biz [5.9.16.100]) (using TLSv1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id B5FF3E0C43 for ; Sun, 20 Oct 2013 13:31:05 +0000 (UTC) Received: from [192.168.255.100] (p5DCC73A1.dip0.t-ipconnect.de [93.204.115.161]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.hadt.biz (Postfix) with ESMTPSA id 7907240007 for ; Sun, 20 Oct 2013 15:31:04 +0200 (CEST) Message-ID: <5263DB18.6020409@hadt.biz> Date: Sun, 20 Oct 2013 15:31:04 +0200 From: Michael Hampicke User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: [O/T] RAID help - now won't boot References: <201310150834.21103.michaelkintzios@gmail.com> <201310201054.45575.michaelkintzios@gmail.com> <5263D33E.2050509@hadt.biz> <201310201413.59198.michaelkintzios@gmail.com> In-Reply-To: <201310201413.59198.michaelkintzios@gmail.com> X-Enigmail-Version: 1.5.2 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="vN9oHNVlLtseRm39sDgcOjfq9L7wCHWEO" X-Archives-Salt: 6af4f999-ea2d-44a9-9ce7-7eca91c57b8c X-Archives-Hash: 2d7621f31d5416a16828a927efb9d282 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --vN9oHNVlLtseRm39sDgcOjfq9L7wCHWEO Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Am 20.10.2013 15:13, schrieb Mick: > On Sunday 20 Oct 2013 13:57:34 Michael Hampicke wrote: >> Am 20.10.2013 11:54, schrieb Mick: >>> Any ideas why the Ubuntu installation won't boot? >> >> My guess would be, you cannot boot, because if you install grub in >> /dev/md0. >> >> Upon boot the bios cannot find stage1 of the bootloader, which normall= y >> lies in the MBR (which also houses the partition table). >=20 > I see ... so installing the MBR code in the /dev/md0 block device is fu= rther=20 > down the disk than where BIOS is looking for it and that's why it error= s out? >=20 That would be my guess. Maybe someone more knowledgeable on how mdadm writes stuff on the disk can jump in and provide additional info. But I'm pretty sure, if you install grub in md0, it's not in that place on the disk where the bios is actually looking for. >=20 > It seems to me then that I *have* to create normal partitions on /dev/s= da &=20 > /dev/sdb, or I would need a different boot drive. Is there another way= to=20 > overcome this problem.=20 Maybe create two mds. md1 (sda1, sdb1) is a small boot partition which contains stage2+, the kernel and the initramfs. And md2 (sda2, sdb2) which acts as another block device with partition table, etc... In this setup you could install grub in the mbr of sda and sdb (grub-install /dev/sda...) A quick google on this subject returned no usable results. But I am off now until tomorrow. --vN9oHNVlLtseRm39sDgcOjfq9L7wCHWEO Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAEBAgAGBQJSY9sYAAoJEK7HowNX6Bk+WrkIALUzw36yrenWmrNyLvKvty9o 1nalzr4IPyBhIaI0oNxSHouiEOKBkdOKBnoat0MYkq/vijAVXdCddVI68KTpJZxf +ygGIvrcNu1dGm1R43E3PE2HDJ9w8EfatuZ9LhHJCUNv+APTCkNCoMua/O6DYPl1 bYifQrGukPzafn0oMqQ+TOP1Aha6fG2jdrxCJKdKHfc8eUuOblUWZtTCjZTcS9aw CcFXus1WhHbhfuIRoWlcoZTzvwm2O9uJNadiilT/duBWbk4jdW0JcykDlvK39UP9 6QShmRmYDiO976n7QuteaIQv87u0+EraWNskhHLLTcM2W7sGHhJ7JNv6urr6oAk= =sBR0 -----END PGP SIGNATURE----- --vN9oHNVlLtseRm39sDgcOjfq9L7wCHWEO--