diff --git a/subcmds/init.py b/subcmds/init.py
index 03f358d..ad28a61 100644
--- a/subcmds/init.py
+++ b/subcmds/init.py
@@ -57,6 +57,10 @@
     g.add_option('-m', '--manifest-name',
                  dest='manifest_name', default='default.xml',
                  help='initial manifest file', metavar='NAME.xml')
+    g.add_option('--mirror',
+                 dest='mirror', action='store_true',
+                 help='mirror the forrest')
+
 
     # Tool
     g = p.add_option_group('Version options')
@@ -112,6 +116,9 @@
       r.ResetFetch()
       r.Save()
 
+    if opt.mirror:
+      m.config.SetString('repo.mirror', 'true')
+
     m.Sync_NetworkHalf()
     m.Sync_LocalHalf()
     m.StartBranch('default')
@@ -185,9 +192,14 @@
     self._SyncManifest(opt)
     self._LinkManifest(opt.manifest_name)
 
-    if os.isatty(0) and os.isatty(1):
+    if os.isatty(0) and os.isatty(1) and not opt.mirror:
       self._ConfigureUser()
       self._ConfigureColor()
 
+    if opt.mirror:
+      type = 'mirror '
+    else:
+      type = ''
+
     print ''
-    print 'repo initialized in %s' % self.manifest.topdir
+    print 'repo %sinitialized in %s' % (type, self.manifest.topdir)
diff --git a/subcmds/sync.py b/subcmds/sync.py
index 9af1232..8050e51 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -102,8 +102,9 @@
       self._Fetch(*missing)
 
     for project in all:
-      if not project.Sync_LocalHalf():
-        sys.exit(1)
+      if project.worktree:
+        if not project.Sync_LocalHalf():
+          sys.exit(1)
 
 
 def _VerifyTag(project):