* DistUpgrade/DistUpgradeCache.py, DistUpgrade.cfg, README:

  - added "RemoveEssentialOk" to control if certain essential package
    are removed 

1 files changed, 3 insertions, 1 deletions

diff --git a/DistUpgrade/DistUpgradeCache.py b/DistUpgrade/DistUpgradeCache.py
index 37dd96db..1f53b6be 100644
--- a/DistUpgrade/DistUpgradeCache.py
+++ b/DistUpgrade/DistUpgradeCache.py
@@ -197,11 +197,13 @@ class MyCache(apt.Cache):
         """ this function tests if the current changes don't violate
             our constrains (blacklisted removals etc)
         """
+        removeEssentialOk = self.config.getlist("Distro","RemoveEssentialOk")
         for pkg in self.getChanges():
             if pkg.markedDelete and self._inRemovalBlacklist(pkg.name):
                 logging.debug("The package '%s' is marked for removal but it's in the removal blacklist", pkg.name)
                 return False
-            if pkg.markedDelete and pkg._pkg.Essential == True:
+            if pkg.markedDelete and (pkg._pkg.Essential == True and
+                                     not pkg.name in removeEssentialOk):
                 logging.debug("The package '%s' is marked for removal but it's a ESSENTIAL package", pkg.name)
                 return False
         return True