EDR: License is corrupt or missing error message

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

• When attempting to apply the license from the console, the messages below are seen in the EDR Server Dashboard: 
  • 
  • 
• The following Log files can be seen in the /var/log/cb/coreservices/debug.log:

2020-10-02 10:59:35 [49482] <warning> cb.sensor.license_manager - Unable to write license_file /etc/cb/server.lic
2020-10-02 11:00:13 [49484] <warning> cb.sensor.license_manager - Unable to write license_file /etc/cb/server.lic

 

Environment

• EDR: All Supported Versions

Cause

• Permissions issue is not allowing the writing of /etc/cb/server.lic

Resolution

• Change ownership of /etc/cb/server.lic to the cb user and group.
  • sudo chown cb:cb /etc/cb/server.lic