From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: RAID6 clean? Date: Mon, 4 Jun 2007 16:59:11 +1000 Message-ID: <18019.47167.814394.650255@notabene.brown> References: <200706040647.l546ldc14291@www.watkins-home.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: message from Guy Watkins on Monday June 4 Sender: linux-raid-owner@vger.kernel.org To: Guy Watkins Cc: 'linux-raid' List-Id: linux-raid.ids On Monday June 4, linux-raid@watkins-home.com wrote: > I have a RAID6 array. 1 drive is bad and now un-plugged because the system > hangs waiting on the disk. > > The system won't boot because / is "not clean". I booted a rescue CD and > managed to start my arrays using --force. I tried to stop and start the > arrays but they still required --force. I then used "echo repair > > sync_action" to make the arrays "clean". I can now stop and start the RAID6 > array without --force. I can now boot normally with 1 missing disk. > > Is there an easier method? Some sort of boot option? This was a real pain > in the @$$. > > It would be nice if there was an array option to allow an "un-clean" array > to be started. An option that would be set in the md superblock. Documentation/md.txt search for 'clean' - no luck. search for 'dirty' | |So, to boot with a root filesystem of a dirty degraded raid[56], use | | md-mod.start_dirty_degraded=1 | NeilBrown