Revision 18e4dee6 lib/bdev.py

b/lib/bdev.py
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    This will not work if the given minor is in use.
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    """


  		





  
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    # Zero the metadata first, in order to make sure drbdmeta doesn't


  		





  
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    # try to auto-detect existing filesystems or similar (see


  		





  
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    # http://code.google.com/p/ganeti/issues/detail?id=182); we only


  		





  
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    # care about the first 128MB of data in the device, even though it


  		





  
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    # can be bigger


  		





  
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    result = utils.RunCmd([constants.DD_CMD,


  		





  
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                           "if=/dev/zero", "of=%s" % dev_path,


  		





  
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                           "bs=1048576", "count=128", "oflag=direct"])


  		





  
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    if result.failed:


  		





  
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      _ThrowError("Can't wipe the meta device: %s", result.output)


  		





  
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    result = utils.RunCmd(["drbdmeta", "--force", cls._DevPath(minor),


  		





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                           "v08", dev_path, "0", "create-md"])


  		





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    if result.failed:


  		












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