An error occurred whilst starting a single user development region. A run-time lock could not be acquired due to the error extended-file-status. The most likely reason is that the directory in which CICS Option creates the lock file,\system, is read-only.
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System action:
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The single user region will not initialize successfully.
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Resolution:
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Ensure that the directory \system is not read-only.
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Destination:
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Console and standard error
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Module:
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dfheini1