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xref:monitoring-and-automation/OProfile.html[OProfile] covers [application]*OProfile*, a low overhead, system-wide performance monitoring tool. Read this chapter for information on how to use [application]*OProfile* on your system.
xref:kernel-module-driver-configuration/intro-kernel-module-driver-configuration.html[Kernel, Module and Driver Configuration]
This part covers various tools that assist administrators with kernel customization.
xref:kernel-module-driver-configuration/Working_with_the_GRUB_2_Boot_Loader.html[Working with the GRUB 2 Boot Loader] der>> describes the GNU GRand Unified Boot loader (GRUB) version 2 boot loader, which enables selecting an operating system or kernel to be loaded at system boot time.
xref:kernel-module-driver-configuration/Manually_Upgrading_the_Kernel.html[Manually Upgrading the Kernel] provides important information on how to manually update a kernel package using the [command]#rpm# command instead of [command]#dnf#. Read this chapter if you cannot update a kernel package with the [application]*DNF* package manager.
xref:kernel-module-driver-configuration/Working_with_Kernel_Modules.html[Working with Kernel Modules] explains how to display, query, load, and unload kernel modules and their dependencies, and how to set module parameters. Additionally, it covers specific kernel module capabilities such as using multiple Ethernet cards and using channel bonding. Read this chapter if you need to work with kernel modules.
xref:RPM.html[RPM]
This appendix concentrates on the RPM Package Manager (RPM), an open packaging system used by {MAJOROS}, and the use of the [command]#rpm# utility. Read this appendix if you need to use [command]#rpm# instead of [command]#dnf#.
xref:Wayland.html[The Wayland Display Server]
This appendix looks at Wayland, a new display server used in GNOME for {MAJOROS} and how to troubleshoot issues with the Wayland display server.
Acknowledgments
Certain portions of this text first appeared in the [citetitle]_Red{nbsp}Hat Enterprise{nbsp}Linux{nbsp}7 System Administrator's Guide_, copyright © 2014–{YEAR} Red{nbsp}Hat, Inc., available at link:https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/index.html[].
xref:monitoring-and-automation/System_Monitoring_Tools.html#sect-System_Monitoring_Tools-Net-SNMP[Monitoring Performance with Net-SNMP] is based on an article written by Michael Solberg.
The authors of this book would like to thank the following people for their valuable contributions: Adam Tkáč, Andrew Fitzsimon, Andrius Benokraitis, Brian Cleary Edward Bailey, Garrett LeSage, Jeffrey Fearn, Joe Orton, Joshua Wulf, Karsten Wade, Lucy Ringland, Marcela Mašláňová, Mark Johnson, Michael Behm, Miroslav Lichvár, Radek Vokál, Rahul Kavalapara, Rahul Sundaram, Sandra Moore, Zbyšek Mráz, Jan Včelák, Peter Hutterer, T.C. Hollingsworth, and James Antill, among many others.