Fix ability format root device without specify fs.

Check ability format device if fs was not specifed.
Example: /dev/sda2 format in btrfs, but current system hasn't
mkfs.btrfs. Then change fs to default filesystem.
Modify partition id changing. After change id wait while device will
recreate by udev.

pym/cl_distr.py

@@ -979,7 +979,15 @@ class PartitionDistributive(Distributive):
                 pipe.stdin.write("t\n%s\nw\ny\n"%systemid)
             pipe.stdin.close()
             pipe.wait()
-        return True
+        print "change id (%s) for %s"%(str(systemid),dev)
+        for waittime in (0.1,0.2,0.5,1,2,4):
+            if path.exists(dev):
+                return True
+            else:
+                print "Waiting %s..."%waittime
+                sleep(waittime)
+        raise DistributiveError(
+            _("Can not found partition %s after change system id")%dev)
 
     def formatSwapPartition(self, dev):
         """Format swap partition"""

pym/cl_install.py

@@ -646,7 +646,9 @@ class convertDictOpt:
             availableFS = self.getAllAvailableFileSystemOpt()
             # if fs not specified and current fs not supported
             if not optFileSystem:
-                if not (format and format in set(supportedFS)-excludeFS):
+                if not (format and format in \
+                    set(availableFS)&set(supportedFS)-excludeFS) \
+                    and optMountPoint == '/':
                     optFileSystem = "default"
                 else:
                     dictUpdateProperty["fileSystem"] = format