From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Greaves Subject: Re: Raid array is not automatically detected. Date: Mon, 16 Jul 2007 16:21:41 +0100 Message-ID: <469B8D05.1080003@dgreaves.com> References: <4697E231.3070906@hp.com> <4698D4FC.2060100@tmr.com> <469B7E75.3030907@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <469B7E75.3030907@hp.com> Sender: linux-raid-owner@vger.kernel.org To: Bryan Christ Cc: Justin Piszcz , Bill Davidsen , linux-raid@vger.kernel.org List-Id: linux-raid.ids Bryan Christ wrote: > I do have the type set to 0xfd. Others have said that auto-assemble > only works on RAID 0 and 1, but just as Justin mentioned, I too have > another box with RAID5 that gets auto assembled by the kernel (also no > initrd). I expected the same behavior when I built this array--again > using mdadm instead of raidtools. Any md arrays with partition type 0xfd using a 0.9 superblock should be auto-assembled by a standard kernel. If you want to boot from them you must ensure the kernel image is on a partition that the bootloader can read - ie RAID 0. This is nothing to do with auto-assembly. So some questions: * are the partitions 0xfd ? yes. * is the kernel standard? * are the superblocks version 0.9? (mdadm --examine /dev/component) David