These are some possible reasons you might receive system reference
code (SRC) A90002000:
- The console was not found by i5/OS.
- The system value QAUTOCFG must be set to ON. i5/OS is unable to create the new
console device if it is off.
- If you just migrated the console from one type to another and the new
console fails to work in i5/OS you
might need to use another workstation to manually delete the controller and
device description associated with the old console device.