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How do I disable Solaris/x86 from probing the UPS on COM2?

With the following command, ran as root:



# eeprom com2-noprobe=true


This (undocumented) option to the eeprom command disables boot-up time
probing of COM2 (apparently done to detect modems). The eeprom command
alters the Solaris boot sector. If the UPS is connected to a serial port
during boot-up time, the UPS may go into self-test or shutdown or
recalibrate. An alternate solution is to disconnect the serial cable
during booting. With the obvious change, this also works for COM1.
See also BugID 4038351.


[Thanks to Andy I. McMullin and John D. Groenveld]



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