Upgrade a Clustered Server

Perform the following to procedure to upgrade a Carbon Black EDR clustered server.

Prerequisites

• See Upgrading a Server.
• You must have SSH or console access to the server with root privileges.
• Verify that your Linux OS is compatible with the latest version of Carbon Black EDR.
• We recommend that you backup your Carbon Black EDR server before you upgrade.

Procedure

1. On the primary server, stop the Carbon Black EDR services:

   # /usr/share/cb/cbcluster stop

2. Modify etc/yum.repos.d/CarbonBlack.repo; set:

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

   Note: For specific version upgrades, see the Release Notes for baseurl.
3. Get the latest yum repository:

   # yum clean all

4. Update the Carbon Black EDR services on the primary server:

   # yum update cb-enterprise

5. Run the upgrade script (see Using cbupgrade):

   # /usr/share/cb/cbupgrade

6. Follow on-screen instructions to complete the upgrade.
7. Repeat steps 2 through 6 on all secondary nodes in the cluster.
   Note:

   • Each minion must update cb-enterprise.
   • Each minion might need to run the cbupgrade script.
8. On the primary server, start the Carbon Black EDR services:

   # /usr/share/cb/cbcluster start

What to do next

Migrate the database schema or Carbon Black Threat Intel feed data.