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 CFAD6138CBD for ; Wed, 11 Mar 2015 06:46:45 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E8605E093E; Wed, 11 Mar 2015 06:46:39 +0000 (UTC) Received: from oc.oops.co.at (oc.oops.co.at [176.58.98.19]) by pigeon.gentoo.org (Postfix) with ESMTP id C8F5FE0866 for ; Wed, 11 Mar 2015 06:46:38 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by oc.oops.co.at (Postfix) with ESMTP id 4799B88255 for ; Wed, 11 Mar 2015 06:46:37 +0000 (UTC) X-Virus-Scanned: amavisd-new at oc.oops.co.at Received: from oc.oops.co.at ([127.0.0.1]) by localhost (oc.oops.co.at [127.0.0.1]) (amavisd-new, port 10024) with LMTP id AJ0x0dN0OmIl for ; Wed, 11 Mar 2015 06:46:27 +0000 (UTC) Received: from hiro.local (unknown [IPv6:2001:15c0:65ff:8742:c060:f6ff:fedb:dd72]) by oc.oops.co.at (Postfix) with ESMTPSA id A0D8A88254 for ; Wed, 11 Mar 2015 06:46:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xunil.at; s=mailout; t=1426056387; bh=eoj6gIubyM5hM2Q6l6H4jspU71nzabjPi8w2jEvlJI0=; h=Date:From:Reply-To:To:Subject; b=tWlzkf9T1/jFHae9VcwIX6Xk102uSUWfF3tWdUpFPwMHSDYRBmyhRiEV+TMyf8XX1 6QlHgU1V48IZyucKZSIVVUAFTQUuwNsUKpHj0rOSWdpBCzIKDF2J9ZqnRGScvNoAFf 4bfPFVWR424KsK515CNsVk9yN2jd/H1Y4PeQOhoA= Message-ID: <54FFE4A2.3060008@xunil.at> Date: Wed, 11 Mar 2015 07:45:54 +0100 From: "Stefan G. Weichinger" Organization: oops! User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 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: [gentoo-user] best practise for 4 disks ... redundancy Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Archives-Salt: d261c2cb-6661-4458-9337-36f80101d8c5 X-Archives-Hash: 45bb9b13bd30c7a8ff2ec33a6d09ffa6 greetings again yesterday I received a shiny new server for a client. It brings 4 x 1 TB SATA disks, is capable of UEFI and I started setting it up. GPT partitioning, small partition(s) for the ESP, some swap, and bigger partitions of type fd=raid for creating 2 mdadm-raids (rootfs and data) with level 6. ok so far. Then I spent some hours fiddling with grub2, gummiboot et al to get that box booting up fine. dracut doesn't assemble the rootfs-raid etc etc ... -> fun What the question is in general: even if I manage to have it booting via UEFI from /dev/sda1 or so ... I still have this single point of failure as the vfat-partitioned ESP is on one physical disk only. I would like to set it up in a way that it boots even when the /dev/sda dies ... Maybe I have to go the BIOS way and have an ext2-boot-raid1 over 4 disks/partitions? I did that on other servers back then. What is the up-to-date and recommended way of achieving this? How do you gentoo-users do these things? I am still at the start with this server and don't mind backing up the rootfs and start from scratch with partitioning ;) Thanks, Stefan