File virtinst-xenbus-disk-index-fix.patch of Package virt-manager.3850

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File virtinst-xenbus-disk-index-fix.patch of Package virt-manager.3850

Reference: bnc#872789
This is an indexing problem created by virt-manager.  It knows not
to add two IDE disks of the same name (eg, 'hda' twice) or two Xen
disks of the same name (eg, 'xvda' twice) but with the different bus
types (ide vs xen) it added xvda with hda.  These disks were then
passed to qemu where it error'ed out with the disks having the same
index (in this case both are 0).

Index: virt-manager-1.2.1/virtinst/devicedisk.py
===================================================================
--- virt-manager-1.2.1.orig/virtinst/devicedisk.py
+++ virt-manager-1.2.1/virtinst/devicedisk.py
@@ -1015,6 +1015,17 @@ class VirtualDisk(VirtualDevice):
         @rtype C{str}
         """
         prefix, maxnode = self.get_target_prefix(skip_targets)
+        postfix_targets = []
+        if self.conn.is_xen():
+            prefixes = [ "hd", "xvd", "vd", "sd", "fd" ]
+            for x in skip_targets:
+                if x is None:
+                    continue
+                for p in prefixes:
+                    found = x.split(p,1)
+                    if found and len(found) == 2:
+                        postfix_targets.append(found[1])
+                        break
         skip_targets = [t for t in skip_targets if t and t.startswith(prefix)]
         skip_targets.sort()
 
@@ -1028,7 +1039,12 @@ class VirtualDisk(VirtualDevice):
                 ran = range(pref_ctrl * 7, (pref_ctrl + 1) * 7)
 
             for i in ran:
-                gen_t = prefix + self.num_to_target(i + 1)
+                postfix = self.num_to_target(i + 1)
+                gen_t = prefix + postfix
+                if self.conn.is_xen() and postfix in postfix_targets:
+                    if gen_t in skip_targets:
+                        skip_targets.remove(gen_t)
+                    continue
                 if gen_t in skip_targets:
                     skip_targets.remove(gen_t)
                     continue

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File virtinst-xenbus-disk-index-fix.patch of Package virt-manager.3850

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