Test the Kdump Configuration

Cockpit administrators, as needed, can test the Kdump configuration by crashing the kernel on the host system using the Kernel dump page in the web console.

What Do You Need?

• The Cockpit web console must be installed and accessible.

  For details, see these topics: Install and Enable Cockpit and Log in to the Cockpit Web Console.

• The Kdump package (kexec-tools) is installed on the host.

  Note:

  An option for installing the Kdump package appears during the installation set up of Oracle Linux. If this package was not installed, see Installing Kdump in Oracle Linux 8: Monitoring and Tuning the System or Oracle Linux 9: Monitoring and Tuning the System
• The cockpit-kdump package is installed. Typically, this package is installed by default.

  For package installation details, see Install and Manage Add-on Applications.

• Administrator privileges.

Steps

Using the Cockpit web console, follow these steps for testing the Kdump configuration.

1. In the Cockpit navigation pane, click Kernel dump.

   The Kernel dump page appears.

2. In the Kernel dump page, click Test configuration.

   The Test kdump settings dialog appears.

   WARNING:

   Testing the Kdump configuration will result in disrupting the execution of the kernel. Proceeding with this operation (Crash system) results in a system crash and a possible loss of data.
3. In the Test kdump settings dialog, click Crash system to proceed with testing the Kdump configuration, otherwise, click Cancel to cancel the operation.