Use this procedure to subscribe to Unbreakable Linux Network (ULN) Oracle Linux channels for your Oracle software.

1. Register your server with Unbreakable Linux Network (ULN). By default, you are registered for the Oracle Linux Latest channel for your operating system and hardware.
2. Log in to Unbreakable Linux Network:

   https://linux.oracle.com

3. Start a terminal session and enter the following command as root, depending on your platform. For example:
   • Oracle Linux 7:

     # yum install oracle-database-preinstall-19c

     Note:

     Use the -y option if you want yum to skip the package confirmation prompt.

   You should see output indicating that you have subscribed to the Oracle Linux channel, and that packages are being installed.

   Oracle Linux automatically creates a standard (not role-allocated) Oracle installation owner and groups, and sets up other kernel configuration settings as required for Oracle installations.
4. Check the RPM log file to review the system configuration changes. For example, on Oracle Linux 7:

   /var/log/oracle-database-preinstall-19c/backup/timestamp/orakernel.log

5. Repeat steps 1 through 4 on all other servers in your cluster.