Kdump
     __________________________________________________________

Note

   This screen is disabled by default. To enable it during the
   installation, you must use the inst.kdump_addon=on option at
   the boot menu. See the full Fedora Installation Guide,
   available at http://docs.fedoraproject.org/ for details, and
   the full Fedora Installation Guide, available at
   http://docs.fedoraproject.org/ for instructions on using custom
   boot options.

   Use this screen to select whether or not Kdump will be
   activated on the installed system, and how much memory will be
   reserved for it if enabled.

   Kdump is a kernel crash dumping mechanism which, in the event
   of a system crash, captures the contents of the system memory
   at the moment of failure. This captured memory can then be
   analyzed to find the cause of the crash. If Kdump is enabled,
   it must have a small portion of the system's memory (RAM)
   reserved to itself. This reserved memory will not be accessible
   to the main kernel.

   To enable Kdump on the installed system, check Enabled. Then,
   select either Automatic or Manual memory reservation settings,
   and if you selected Manual, enter the amount of memory to be
   reserved in megabytes into the Memory to be reserved field.

   The amount of memory which you should reserve is determined
   based on your system's architecture (AMD64 and Intel 64 will
   have different requirements than IBM Power, for example) as
   well as the total amount of system memory. In most cases,
   automatic reservation will be satisfactory. If you insist on
   manual settings, see the Red Hat Enterprise Linux 7 Kernel
   Crash Dump Guide for guidelines. This document also contains
   more in-depth information about how Kdump works, how to
   configure additional settings, and how to analyze a saved crash
   dump.

   The Usable System Memory readout below the reservation input
   field shows how much memory will be accessible to your main
   system once your selected amount of RAM is reserved.

Note

   Additional settings, such as the location where kernel crash
   dumps will be saved, can only be configured after the
   installation using either the system-config-kdump graphical
   interface, or manually in the /etc/kdump.conf configuration
   file.

   After configuring Kdump settings, click Done in the top left
   corner to return to Installation Summary.
