EDR: How to upgrade a clustered server environment to the latest version

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

To upgrade a clustered, on-prem EDR server environment to the latest version.

Environment

• EDR Server: 6.x and higher
• Clustered server environment 

Resolution

1. Log onto the CLI of the primary server.
2. Stop the CB EDR services:

# /usr/share/cb/cbcluster stop

3. Modify /etc/yum.repos.d/CarbonBlack.repo, set it to a value based on the latest Server Cluster Management Guide:

baseurl=https://yum.distro.carbonblack.io/enterprise/stable/$releasever/$basearch/

4. Get the latest yum repository:

# yum clean all

5. Run:

# yum update cb-enterprise

6. Run the upgrade script:

# /usr/share/cb/cbupgrade

7. Follow all on-screen instructions to complete the upgrade. 
8. Repeat steps 3-7 on all secondary nodes in the cluster.
   1. Each minion needs to update cb-enterprise
   2. Each minion may need to run the cbupgrade script.
9. From the master server, start the CB EDR cluster services:

# /usr/share/cb/cbcluster start

Additional Information

• Prior to upgrading, verify your Linux OS is compatible with the latest version of EDR. 
• A backup of the EDR Server is recommended prior to upgrading.
• Refer to the VMware EDR Server/Cluster Management Guide for other important details on the upgrade process.