Cannot signal shutdown of Linux from z/VM (z-series)

Solution Verified - Updated -


  • Red Hat Enterprise Linux 6.4 s390x is running under z/VM.
  • Found the documentation for allowing z/VM to signal shutdown a zLinux instance (IBM cookbook).
  • Its has been enabled signals for the instance on the VM side, and also the file /etc/init/control-alt-delete.conf has been updated to -h now, However, when the signal is sent, absolutely nothing happens on the instance. It appears to not even acknowledge it was sent.


  • Red Hat Enterprise Linux 6.4
  • z/VM environment s390x

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