From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1O3BtF-0005Lj-KW for garchives@archives.gentoo.org; Sat, 17 Apr 2010 17:33:09 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id C5BC2E07F5; Sat, 17 Apr 2010 17:32:04 +0000 (UTC) Received: from mail-pz0-f203.google.com (mail-pz0-f203.google.com [209.85.222.203]) by pigeon.gentoo.org (Postfix) with ESMTP id 8FE18E07F5 for ; Sat, 17 Apr 2010 17:32:04 +0000 (UTC) Received: by pzk41 with SMTP id 41so2671683pzk.10 for ; Sat, 17 Apr 2010 10:32:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:received:message-id :subject:from:to:content-type; bh=tQNejWzWQ9YZmodwflpUmei7uxfWEXO3EsSECKgUYmM=; b=MtjXWXPm8y4ArZGV0uvY3YhE947gbGdEnzPzBXP9lj/RCgvZI/tFI4xTNXG0QbRcCl juAxoXXdR0SgfkxgRP6zWqbKY8GWlJkHVnogj8eVYd77hBeEdczMYYgoQ3isFYFLuxWR YlL4g8oQGFHJewlcUB90S+pXqE2dqP6ZRffzc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=cm61iyUbCStHj24g+igKGYMMr+kLJ8ZhjIupxVi/mOjRLRCyl5nwt5QOG3BQXGGvG/ VNLNQ9oYgoZ4HnDBPlaJVdEOUUZEBSFVZes2S2UqGfnGyz+gr859lGaoZdLQUwchFPxA yU43Cr4loaGGTouVC29CnLnnFso9CMV+nniJo= 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 Received: by 10.143.160.19 with HTTP; Sat, 17 Apr 2010 10:32:03 -0700 (PDT) Date: Sat, 17 Apr 2010 10:32:03 -0700 Received: by 10.142.2.29 with SMTP id 29mr1411259wfb.204.1271525524010; Sat, 17 Apr 2010 10:32:04 -0700 (PDT) Message-ID: Subject: [gentoo-user] initramfs & RAID at boot time From: Mark Knecht To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 X-Archives-Salt: d080ad26-37e4-45f5-b6d8-f80dea39b49a X-Archives-Hash: 27cbfdc65f88951ec1a81674d75ef18d Hi, I've never learned to do an initramfs as I've never used hardware in a Linux box that required it. However now I find myself using mdadm software-RAID and getting dinged on the linux-raid list when I ask about things like the kernel autodetecting RAID drives at boot time as the mdadm developers are firmly fixated on using initramfs and auto-detecting nothing. Going with the flow I'm studying this Gentoo Wiki link: http://en.gentoo-wiki.com/wiki/Initramfs and most specifically this portion on software RAID: http://en.gentoo-wiki.com/wiki/Initramfs#Software_RAID where the statement "But if you use an initramfs the kernel will not automatically scan for RAIDs until it is told to." caught my attention. Does anyone know if the word "not" in that statement is absolutely true? I.e. - if I take a kernel that today finds a RAID1 / drive and boots, that if I do nothing other than turn on that feature in the kernel then the boot process is not going to assemble my RAID, not find / and then fail to boot? Maybe I'm reading too much into that but I like that my system boots and I don't think I want to do things that stop it from doing so... ;-) That said, if it's true, does the "noinitrd" kernel parameter override it and then RAID would work and the boot completes normally? Thanks, Mark