Certificate signing operation was not successful - Exit code: 127

Question

We are using SCOM 2012 SP1 CU2 to deploy agent to a Redhat Linux.
In the process, we are able to successfully discover the target machine, but when we click on "Manage" we get this below error message.  Why should there be scxadmin file or directory already present ?  Isn't the installer supposed to
create this file ?  We have successfully deployed agent to another client machine with exact same OS.  So, what might be happening here ???  Any insight is appreciated.
Failed to sign kit. Exit code: 127
Standard Output:
Standard Error: bash: /opt/microsoft/scx/bin/tools/scxadmin: No such file or directory
Exception Message:

Answer 1

this is the version scx-1.4.1-278.x86_64 is what we use and I assume it got there by me pushing the agent.  scx-1.4.1-278.x86_64
rpm -e scx returned...
/opt/microsoft/scx/bin/scxcimserver not installed
rm: cannot remove `/opt/microsoft/scx/lib': No such file or directory
rm: cannot remove `/opt/microsoft/scx/bin': No such file or directory
When I check /var/opt and /etc/opt microsoft directories were there and I was able to remove them successfully.  When I push the agent again after removing everything, I get this below error message.
Task invocation failed with error code -2130771918. Error message was: Certificate signing module called with an empty certificate. Check that the certificate on the remote host is valid, and that the remote host can be accessed over SSH.
Management group: mymanagementgroup
Workflow name: Microsoft.Unix.Agent.GetCert.Task
Object name: MY - UNIX Resource Pool
Object ID: {9810A404-BA8B-E34C-45E7-25FFCCF3C40E}