diff --git a/pym/update/update.py b/pym/update/update.py
index c5cedfb..bb34cc7 100644
--- a/pym/update/update.py
+++ b/pym/update/update.py
@@ -593,6 +593,25 @@ class Update(MethodsInterface):
     def _eixUpdateCommand(self, eix_cmd, countRep):
         return PercentProgress(eix_cmd, "-F", part=countRep or 1, atty=True)
 
+    def _copyPreviousEix(self):
+        chroot_path = self.clVars.Get("cl_chroot_path")
+        portage_eix = pathJoin(chroot_path, "var/cache/eix/portage.eix")
+        previous_eix = pathJoin(chroot_path, "var/cache/eix/previous.eix")
+        if path.exists(portage_eix):
+            if path.exists(previous_eix):
+                os.unlink(previous_eix)
+            try:
+                with writeFile(previous_eix) as f:
+                    f.write(readFile(portage_eix))
+                portage_eix_stat = os.stat(portage_eix)
+                os.chmod(previous_eix, portage_eix_stat.st_mode)
+                os.chown(previous_eix, portage_eix_stat.st_uid,
+                                       portage_eix_stat.st_gid)
+            except (OSError,IOError):
+                self.printWARNING(_("Failed to create previous eix"))
+        return True
+        
+
     def eixUpdate(self, repositories):
         """
         Выполенине eix-update для репозиторием
@@ -601,6 +620,8 @@ class Update(MethodsInterface):
         обновлялись, если cl_update_eixsync_force==auto, либо
         все, если cl_update_eixupdate_force==force
         """
+        self._copyPreviousEix()
+
         eixupdate = self.get_prog_path("/usr/bin/eix-update")
         if not eixupdate:
             raise UpdateError(_("The Eix tool is not found"))