1. Break the system to the open boot prom by issuing a Stop+A
2. Set the following parameters from the ok prompt:
setenv auto-boot? false
setenv diag-switch? true
setenv diag-level max
setenv diag-device disk
3. Alternately, you could set the parameters from the system level:
eeprom “auto-boot?=false”
eeprom “diag-switch?=true”
eeprom “diag-level=max”
eeprom “diag-device=disk”
4. Turn the system off. Wait about a minute, then turn it back on.
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