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NWCONFIG-X-226: The system volume (SYS:) does not exist. Installation cannot be completed without it.

Source:  NWCONFIG.NLM

Explanation:  System volume SYS: must be mounted before NWCONFIG.NLM can be used.

Action:  Mount the SYS: volume.

  Previous Page: NWCONFIG-X-225: This segment exists on disk. Its size cannot be modified unless you delete and reassign it.  Next Page: NWCONFIG-X-228: File name is out of date. (Its version numbers are number and number, the expected values are number and number, respectively.) If you are installing from diskette, insert a diskette containing an updated file; otherwise, update the file and reinstall).