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[PATCH] (take II) Fix upgrade selected in UI after storage reset (#503302)



Fix of this UI flow: doing storage reset after root partitions discovery (e.g.
in partitioning step) and then going back and selecting upgrade. In place of
using root partition device objects obsoleted by storage reset, find root
partition devices of new device tree.
---
 iw/examine_gui.py   |    6 ++++++
 storage/__init__.py |    2 ++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/iw/examine_gui.py b/iw/examine_gui.py
index 334f3d1..e6fda9c 100644
--- a/iw/examine_gui.py
+++ b/iw/examine_gui.py
@@ -90,6 +90,12 @@ class UpgradeExamineWindow (InstallWindow):
 	else:
 	    self.doupgrade = self.anaconda.id.upgrade
 
+        # we might get here after storage reset that obsoleted
+        # root devices we had found
+        if not self.anaconda.id.rootParts:
+            self.anaconda.id.rootParts = upgrade.findExistingRoots(self.anaconda)
+            self.anaconda.id.upgradeRoot = self.anaconda.id.rootParts[:]
+
         self.parts = self.anaconda.id.rootParts 
 
         vbox = gtk.VBox (False, 10)
diff --git a/storage/__init__.py b/storage/__init__.py
index a364bf8..685b59e 100644
--- a/storage/__init__.py
+++ b/storage/__init__.py
@@ -298,6 +298,8 @@ class Storage(object):
                                      luksDict=self.__luksDevs)
         self.devicetree.populate()
         self.fsset = FSSet(self.devicetree)
+        self.anaconda.id.rootParts = None
+        self.anaconda.id.upgradeRoot = None
         w.pop()
 
     @property
-- 
1.6.0.6


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