The following error occur when perform gathering on Redhat, SUSE, Solaris, AIX, HP UX, ... machine:
Failed to install agent. Automatic Unix agent installation or repairing unsupported. Not implmented (Win32 error: 0x80004001)
This is could happen if the name of the machine was set differently in the agent properties and the site. In fact the computer names of Unix/Linux machines are case sensitive within the site properties.
Please make sure the name set in the Agent properties is same as the name set in the Sites.
For example, if the non-FQDN name is use in the Agent properties (under InTrust Manager | Configuration | InTrust Servers | <ServerName>| Agents), please make sure this same name is use in the Sites (under InTrust Manager | Configuration | Sites | Unix Network). In fact it is best to copy the name from agent properties and use this in your Site settings.