Thanks. verbose mode exposed more parts of code in device mapper code that I had to implement in order for my new target type "dyre" to get identified. My current problem is when there is an ioctl call, I am getting an error with errno set to 22, which corresponds to "Invalid argument". Could you please tell me where can I get the kernel part of the code which handles the device mapper target? similar to "striped" target, I think I need to add code there for my "dyre" target. Thank you again for your help. Regards, On Fri, Nov 20, 2015 at 8:17 AM, Alasdair G Kergon <agk@xxxxxxxxxx> wrote: > On Thu, Nov 19, 2015 at 04:25:44PM -0500, Shehbaz Jaffer wrote: >> ln -s /dev/dm-0 /dev/mapper/vol_vg-root > > Lots of pieces of code are involved - if you are using udev, then udev rules > are responsibly for managing it. > > For debugging, check you have 'activation/verify_udev_operations' set to 1 in > lvm.conf. > > Alasdair > > -- > dm-devel mailing list > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel -- Shehbaz Jaffer First Year Graduate Student Sir Edward S Rogers Sr Department of Electrical and Computer Engineering University of Toronto -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
