From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Marzinski Subject: Re: DM-MP cannot be run on either the root or boot device Date: Mon, 4 Dec 2006 16:00:37 -0600 Message-ID: <20061204220037.GA10678@ether.msp.redhat.com> References: Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development List-Id: dm-devel.ids On Thu, Nov 30, 2006 at 03:28:12PM -0700, Wayne Cass wrote: > DM-MP cannot be run on either the root or boot device > > > I am booting from a SAN. Configuration: > > LUN 1 > /boot > / > /var > /swap > > > Question: Can I just blacklist "/" and "/boot" ? > > How do you do it? I am using a HP xp-1024 SAN. There is no easy way to blacklist devices by their e2label filesystem label, if that's what you mean. You can blacklist the devices that "/" and "/boot" are on by adding something the following to your /etc/multipath.conf blacklist { ... wwid wwid } You can get the WWIDs for the device by running # /sbin/scsi_id -g -u -s /block/ e.g. [root@cypher-01 ~]# /sbin/scsi_id -g -u -s /block/sda 3600d02300069c9ce09d41c72a4235e00 3600d02300069c9ce09d41c72a4235e00 is the WWID. Also, multipath can only operate on entire devices. There is no way to blacklist just a partition of a device. > > > thanks > > > -- > dm-devel mailing list > dm-devel@redhat.com > https://www.redhat.com/mailman/listinfo/dm-devel