0 

Successful completion of script.  

1 

Fatal error. Installation process is terminated at this point.  

2  

Warning or possible error condition. Installation continues. A warning message is displayed at the time of completion.  

3  

The pkgadd command is cleanly halted. Only the checkinstall script returns this code.

10  

System should be rebooted when installation of all selected packages is completed. (This value should be added to one of the single-digit exit codes.)  

20  

System should be rebooted immediately upon completing installation of the current package. (This value should be added to one of the single-digit exit codes.)