From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phillip Susi Subject: Re: device mapper not finding all devices Date: Tue, 19 Jul 2011 14:51:10 -0400 Message-ID: <4E25D21E.8050901@cfl.rr.com> References: Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: 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 Cc: David Cramblett List-Id: dm-devel.ids On 7/17/2011 3:03 PM, David Cramblett wrote: > Current Software: > Linux 2.6.18-238.12.1.el5 #1 SMP Tue May 31 13:23:01 EDT 2011 i686 > i686 i386 GNU/Linux > device-mapper-1.02.55-2.el5 2.6.18 is now 5 years old; it might be time to upgrade. > I did some research and the only info I could find was regarding dmsetup: > > #dmsetup status > pdc_eehgddjjp1: 0 976768002 linear > pdc_eehgddjj: 0 976772992 linear > via_cdeadaheebp1: 0 976768002 linear > via_cdeadaheeb: 0 1953546240 striped 2 8:0 8:16 1 AA > > > Looks like something is wrong with the vg0-lvol0 entry above, but I > can't figure out how to fix it. There is also another HDD on each of You only seem to have 4 entries for two dmraid disks ( which is not well supported so you should not be using it unless you need to dual boot with windows ) and a partition on each. It is also quite strange that the pdc array is using a linear mapping. Could it be a degraded mirror? > the via and pdc controllers that are seen by the system, but not > showing up in the "status" list above. There is also a disk connected > to PATA port "/dev/hda" that is part of the lvol. What disks are supposed to be LVM physical volumes? The output of pvdisplay may prove useful. An lvchange -ay might also be worthwhile. > The device-mapper device is being created for the lvol: > > /dev/mapper/vg0-lvol0 If it had actually been created, then it should show up in dmsetup status. The system appears to be failing to create it.