Tell NetworkManager not to touch network interfaces when / is a netfs

Tell NetworkManager not to touch anaconda configured interfaces when / is
on a network based device.

1 files changed, 9 insertions, 1 deletions

diff --git a/network.py b/network.py
index d902c3524..7bb8b9b9a 100644
--- a/network.py
+++ b/network.py
@@ -482,7 +482,7 @@ class Network:
 
         return False
 
-    def write(self, instPath=''):
+    def write(self, instPath, anaconda):
         if len(self.netdevices.values()) == 0:
             return
 
@@ -545,6 +545,14 @@ class Network:
                 searchLine = string.joinfields(self.domains, ' ')
                 f.write("SEARCH=\"%s\"\n" % (searchLine,))
 
+            # tell NetworkManager not to touch any interfaces used during
+            # installation when / is on a network device. Ideally we would only
+            # tell NM not to touch the interface(s) actually used for /, but we
+            # have no logic to determine that
+            rootdev = anaconda.id.fsset.getEntryByMountPoint("/").device
+            if rootdev.isNetdev():
+                f.write("NM_CONTROLLED=no\n")
+
             f.close()
             os.chmod(newifcfg, 0644)