Thanks for the reply Heinz, I have to admit that I am a complete noob when when it comes to understanding how device-mapper works and the documentation I've read doesn't shed much light either I'm afraid. > Mark, > > you're saying, the system is wotking properly, but without the respecive > mapping tables it's hard to tell if there's a hidden issue. > > The message shows, that device-mapper is unable to discover 2 devices > while loading (a) mapping table(s). > The machine indeed has 2 IDE disks. I am wondering how I can prevent this error message from occuring? It sounds like something is wrong even though there doesn't seem to be (but is there really?). Thanks, Mark > On Tue, May 23, 2006 at 08:57:45AM +1000, Mark Huth wrote: > > Hi, > > I am encountering the following error/message whilst the machine is > > booting up: > > > > kernel: device-mapper: 4.5.0-ioctl (2005-10-04) initialised: dm- > > devel redhat com > > kernel: device-mapper: dm-linear: Device lookup failed > > kernel: device-mapper: error adding target to table > > kernel: device-mapper: dm-linear: Device lookup failed > > kernel: device-mapper: error adding target to table > > kernel: cdrom: open failed. > > last message repeated 2 times > > > > I am not using LVM (just a bunch of raid0 partitions) so it seems that > > this error is more informational rather than a sign of possible > > problems, and the system seems to otherwise be functioning normally. So > > I was wondering if anyone on this list can confirm that it is nothing to > > worry about and if there a way to make the system happy to prevent this > > message from showing up. I am using RHEL4U3 (kernel 2.6.9-34.EL). > > > > Thanks, > > Mark > > > > -- > > > > dm-devel redhat com > > https://www.redhat.com/mailman/listinfo/dm-devel > > -- > > Regards, > Heinz -- The LVM Guy -- > > *** Software bugs are stupid. > Nevertheless it needs not so stupid people to solve them *** > > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > > Heinz Mauelshagen Red Hat GmbH > Consulting Development Engineer Am Sonnenhang 11 > Storage Development 56242 Marienrachdorf > Germany > Mauelshagen RedHat com PHONE +49 171 7803392 > FAX +49 2626 924446 > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
