Unable to see launch slave agents on Unix machines via SSH on Jenkins

Question

I have two different Jenkins instances with different versions. One has version 1.609.1 and when I create a slave on it I see options in the launch method like:

• "Launch slaves agents on a Unix machine via SSH"
• "Launch slave agents via Java web start"
• "Launch slaves via execution of command on the master and let Jenkins control this Windows slave as a Windows service"

I have one more instance that is of version 2.89.4, but the slave launch option is different - it has one *"Launch slaves agent via SSH". The rest of the all options are the same.

Is this slave launching option something version-specific?

Answer 1

It is specific to the plugin. You need to add it in your missing instance. See SSH Slaves Plugin.