Cobbler's linkfile uses various device-based checks that fail inside LXC. This patch disables them.

utils.py.patch

--- /usr/lib/python2.6/site-packages/cobbler/utils.py-  2013-06-20 01:42:48.000000000 -0400
+++ /usr/lib/python2.6/site-packages/cobbler/utils.py   2013-09-26 22:51:42.000000000 -0400
@@ -1168,13 +1168,15 @@
         # arg
         raise "Internal error: API handle is required"

-    is_remote = is_remote_file(src)
+    logger.info('skipping is_remote_file, is_safe_to_hardlink checks')
+    is_remote = False
+    # is_remote = is_remote_file(src)

     if os.path.exists(dst):
         # if the destination exists, is it right in terms of accuracy
         # and context?
         if os.path.samefile(src, dst):
-            if not is_safe_to_hardlink(src,dst,api):
+            if False: # not is_safe_to_hardlink(src,dst,api):
                 # may have to remove old hardlinks for SELinux reasons
                 # as previous implementations were not complete
                 if logger is not None:
@@ -1188,7 +1190,7 @@
                logger.info("removing: %s" % dst)
             os.remove(dst)

-    if is_safe_to_hardlink(src,dst,api):
+    if True: # is_safe_to_hardlink(src,dst,api):
         # we can try a hardlink if the destination isn't to NFS or Samba
         # this will help save space and sync time.
         try:

cobbler-2.4.0-1.el6.noarch