201.3 - Kernel runtime management and troubleshooting

Weight: 4

Description: Candidates should be able to manage and/or query a 2.6.x, 3.x or 4.x kernel and its loadable modules. Candidates should be able to identify and correct comm-on boot and run time issues. Candidates should understand device detection and management using udev. This objective includes troubleshooting udev rules.

Key Knowledge Areas:

Use command-line utilities to get information about the currently running kernel and kernel modules

Manually load and unload kernel modules

Determine when modules can be unloaded

Determine what parameters a module accepts

Configure the system to load modules by names other than their file name.

/proc filesystem

Content of /, /boot/ , and /lib/modules/

Tools and utilities to analyze information about the available hardware

udev rules

Terms and Utilities:

/lib/modules/kernel-version/modules.dep

module configuration files in /etc/

/proc/sys/kernel/

/sbin/depmod

/sbin/rmmod

/sbin/modinfo

/bin/dmesg

/sbin/lspci

/usr/bin/lsdev

/sbin/lsmod

/sbin/modprobe

/sbin/insmod

/bin/uname

/usr/bin/lsusb

/etc/sysctl.conf, /etc/sysctl.d/

/sbin/sysctl

udevmonitor

udevadm monitor

/etc/udev/