9.2 Flashcards

1
Q

The lowest level of easily replaceable software that interfaces with the hardware in your computer. The kernel’s job is to talk to the hardware and software and manage the system’s resources.

A

Linux kernel

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2
Q

Kernel modules are pieces of code that can be loaded and unloaded into the kernel upon demand. They extend the functionality of the kernel without rebooting the system.

A

Kernel module

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3
Q

Provides the modprobe utility with default commands for loading modules at boot time.

A

/etc/modprobe.conf

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4
Q

/etc/modprobe.conf options include

A

install
alias
options
irq and io

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5
Q

Contains multiple configuration files used by modprobe at boot time if the /etc/modprobe.conf file does not exist.

A

/etc/modprobe.d

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6
Q

This directory stores your kernel modules which are available to all users.

A

/usr/lib/modules/kernel-version

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7
Q

Lists all loaded modules. The command pulls information from the /proc/modules file.

A

lsmod

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8
Q

Views the /proc/modules file. This file contains a list of all loaded modules.

A

cat /proc/modules

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9
Q

Views additional information about a module listed using the lsmod command.

A

modinfo

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10
Q

Creates a file that identifies module dependencies. The file is placed at /lib/modules/kernel_version_number/modules.dep. This command first reads the /etc/modules.conf file to identify modules. It then probes each module to build a list of dependencies

A

depmod

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11
Q

installs a mod

A

insmod

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12
Q

Loads a module along with any module dependencies. This utility also runs at startup to load modules. The /etc/modprobe.conf file provides modprobe with its configuration information.

A

modprobe

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13
Q

Removes a module from the kernel. rmmod:

A

rmmod

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14
Q

Devices that should only be removed or replaced when the power to the computer is off.

A

coldplug

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15
Q

Devices that can be removed while the computer is on.

A

hotplug

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