This problem can be resolved by deleting /dev/null then
recreating it using the UNIX cp command. The server should come up
normally.
In one case, after an IPL, /dev/null was an actual file instead of a
special characters file. When it was restored, the WebSphere Application
Server address spaces came up successfully. In this case the /dev/null was
deleted and recreated and the WebSphere Application Server address spaces
came up successfully.
For message BBOU0707W, "REASON=EDC5113I Bad file descriptor." can also
appear instead of the "REASON=EDC5133I No space left on device." and is
another symptom of the same problem.
In V5, the BBOU0006E message would be BBOO0006E and message BBOU0707W
would be BBOO0164W with the same text as the V401 messages.
The processing of the messages in V5 and use of /dev/null for fillins
is the same in V5 as it is in V401. Minor code C9C2040F is issued for V401
and V5.
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