diff -ur cobbler-2.0.7.old/koan/app.py cobbler-2.0.7.new/koan/app.py
--- cobbler-2.0.7.old/koan/app.py	2013-03-27 14:24:46.002915215 -0400
+++ cobbler-2.0.7.new/koan/app.py	2013-03-27 15:32:44.987651207 -0400
@@ -1492,7 +1492,7 @@
                         raise InfoException, "LVM creation failed"
 
                 # partition location
-                partition_location = "/dev/mapper/%s-%s" % (location,name.replace('-','--'))
+                partition_location = "/dev/%s/%s" % (location,name)
 
                 # check whether we have SELinux enabled system
                 args = "/usr/sbin/selinuxenabled"