Configuring the kdump at First Boot
When the system boots for the first time, a firstboot application is launched allowing you to perform a basic configuration. This includes the kdump service.
The kdump configuration screen
Figure 44.1. The kdump configuration screen
Unless the system has enough memory, this option will not be available. For the information on minimum memory requirements, refer to the Required minimums section of the Community Enterprise Linux comparison chart. Note that when the To start the To configure the amount of memory that is reserved for the kdump crash recovery is enabled, the minimum memory requirements increase by the amount of memory reserved for it. This value is determined by a user, and defaults to 128 MB.
Enabling the Service
kdump daemon at boot time, select the Enable kdump? check box. This will enable the service for runlevels 2, 3, 4, and 5, and start it for the current session. Similarly, unselecting the check box will disable it for all runlevels and stop the service immediately.Configuring the Memory Usage
kdump kernel, click the up and down arrow buttons next to the Kdump Memory field to increase or decrease the value. Notice that the Usable System Memory field changes accordingly showing you the remaining memory that will be available to the system.