In 21.0 before 21.0.5, UNIS/Linux agents won't start when using -I (upper case i) as a start parameter.
Agent throws error in nohup.out:
20221027/032031.591 usage : UCXJxxx [[ini=]<file>]
<file> ... Use this INI file
20221027/032031.591 U02000002 UC4 Agent 'UCXJxxx' version '21.0.4+build.13' ended abnormaly
In 12.3, both an upper case and lower case -I or -i were allowed. In 21.0 before 21.0.5, it must be a lower case -i or no 'i' at all per the documentation.
Release : 21.0 prior to 21.0.5
This will be fixed in the 21.0.5 UNIX/Linux agent where -I will be allowed when starting the agents. 21.0.5 is currently planned for the first quarter of calendar year 2023.
Update the start command to use lower case -i In the service manager:
1) Open up the service manager dialog and navigate to the server where the agent resides
2) Right-click on the agent and choose Properties
3) Update the start command so that it is something like:
Note that there is no space between the -i and the path to the ini file and it must be a lower case i.
4) At this point, you should be able to start the agent on 21.0 and use the CAU as expected