Add unmount flash before flash install.

pym/cl_distr.py

@@ -932,6 +932,12 @@ class PartitionDistributive(Distributive):
             self.changeSystemID(dev,systemid,partTable)
         return True
 
+    def _checkMount(self,dev):
+        """Checking mount point"""
+        if isMount(dev):
+            raise DistributiveError(
+                _("Failed to format partition %s, because it is mounted")%dev)
+
     def formatPartition(self, dev,format="reiserfs",label=""):
         """Format partition"""
         if not format in self.formatUtilities:
@@ -943,9 +949,7 @@ class PartitionDistributive(Distributive):
             raise DistributiveError(\
                 _("Failed to format partition %s, because it is used as swap")%
                 dev)
-        if isMount(dev):
-            raise DistributiveError(
-                _("Failed to format partition %s, because it is mounted")%dev)
+        self._checkMount(dev)
         if not os.access(dev,os.W_OK):
             raise DistributiveError(_("Failed to format the partition") +
                                     " %s:\n%s"%(dev,_("Permission denied")))
@@ -1347,6 +1351,15 @@ class IsoDistributive(Distributive):
             self._removeDirectory(self.bdirectory)
 
 class FlashDistributive(PartitionDistributive):
+    def _checkMount(self,dev):
+        """Checking mount point"""
+        mp = isMount(dev)
+        if mp:
+            if mp.startswith('/media'):
+                self._umountDirectory(mp)
+            else:
+                raise DistributiveError(
+                    _("Failed to format partition %s, because it is mounted")%dev)
 
     def installFrom(self, source):
         """Install distributive to partition from source distributive"""