On 02/24/2014 10:44 PM, John Utz wrote: > Solved my own issue methinks, the name of the module that i am > finding in drivers/md/ is linear.ko, not dm-linear.ko. that was That's the MD linear personality not the device-mapper linear target. It allows you to build JBOD (concatentation) arrays using the MD RAID subsystem. > unexpected. i note further that there are other non 'dm- decorated' > lkms in md as well, such as multipath, faulty, raid0, etc. These are also MD personalities. > is there an implication associated with things decorated with dm- vs > things not decorated with dm- in the md directory? The device-mapper targets all have a dm-* prefix (there are other files in drivers/md with names beginning with 'dm', e.g. dm.c, dm-table.c but those are part of the device-mapper core). The dm-linear target is always built into the core dm-mod - see the Makefile rules in drivers/md/Makefile for details. The device-mapper bits are right at the top. Regards, Bryn. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel