ACFS-09230
unload:
Cause
One or more ACFS drivers (oracleoks, oracleadvm, or oracleacfs) was in use. The operation ("acfsroot uninstall" or "acfsload stop") did not complete. One or more drivers may have been unloaded. This error occurs after the system verified that the drivers were in the correct state to be unloaded. This means that another process referenced a driver after the verification but before the actual unload was attempted. Driver use information follows.
Action
Determine the reason a driver could not be unloaded. Retry the operation after correcting the problem.