From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: raid6 array , part id 'fd' not assembling at boot . Date: Sat, 17 Mar 2007 16:36:23 +1100 Message-ID: <17915.32343.270875.583164@notabene.brown> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: message from Mr. James W. Laferriere on Friday March 16 Sender: linux-raid-owner@vger.kernel.org To: "Mr. James W. Laferriere" Cc: linux-raid maillist List-Id: linux-raid.ids On Friday March 16, babydr@baby-dragons.com wrote: > Hello All , I am having a dickens of a time with preparing this system > to replace my present one . > I created a raid6 array over 6 147GB scsi drives . > steps I followed were . > > fdisk /dev/sd[c-h] ( one at a time of course ) > created a partition starting at cyl 2 & -10 Cyls from the end of the drive . > typed the partion FD > w > repeat until all six drives partitioned . > > mdadm --create /dev/md3 --chunk=64 --metadata=1.2 --verbose --bitmap=internal --level=6 --raid-devices=6 --spare-devices=0 /dev/sd[cdefgh]1 > Built just fine . In-kernel auto-assembly using partition type 0xFD only works for metadata=0.90. This is deliberate. Don't use 0xFD partitions. Use mdadm to assemble your array, either via an initrd or (if it don't hold the root filesystem) via an init.d script. NeilBrown