Revision 268b8e42 lib/cmdlib.py

b/lib/cmdlib.py
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    self.dst_node = self.cfg.GetNodeInfo(
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      self.cfg.ExpandNodeName(self.op.target_node))
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    assert self.dst_node is not None, \
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          "Cannot retrieve locked node %s" % self.op.target_node
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    if self.dst_node is None:
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      # This is wrong node name, not a non-locked node
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      raise errors.OpPrereqError("Wrong node name %s" % self.op.target_node)
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    # instance disk type verification
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    for disk in self.instance.disks:

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