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This article focuses on "what kernel management commands are there in the Linux system". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn what kernel management commands are available in the Linux system.

1. Kernel module mounted by lsmod column

Lsmod lists the names and sizes of modules that have been loaded in the system. In addition, we can also check / proc/modules, and we can also know which modules have been loaded in the system.

The code is as follows:

[root@localhost beinan] # lsmod

[/ code]

2. Modinfo to view module information

Modinfo can view the information of the module and determine the purpose of the module by viewing the information of the module

The code is as follows:

[root@localhost beinan] # moinfo module name

For example:

The code is as follows:

[root@localhost beinan] # modinfo ne2k-pci

Filename: / lib/modules/2.6.11-1.1369_FC4/kernel/drivers/net/ne2k-pci.ko

Author: Donald Becker / Paul Gortmaker

Description: PCI NE2000 clone driver

License: GPL

Parmtype: debug:int

Parmtype: options:array of int

Parmtype: full_duplex:array of int

Parm: debug:debug level (1-2)

Parm: options:Bit 5: full duplex

Parm: full_duplex:full duplex setting (s) (1)

Vermagic: 2.6.11-1.1369_FC4 686REGPARM 4KSTACKS gcc-4.0

Depends: 8390

Alias: pci:v000010ECd00008029sv*sd*bc*sc*i*

Alias: pci:v00001050d00000940sv*sd*bc*sc*i*

Alias: pci:v000011F6d00001401sv*sd*bc*sc*i*

Alias: pci:v00008E2Ed00003000sv*sd*bc*sc*i*

Alias: pci:v00004A14d00005000sv*sd*bc*sc*i*

Alias: pci:v00001106d00000926sv*sd*bc*sc*i*

Alias: pci:v000010BDd00000E34sv*sd*bc*sc*i*

Alias: pci:v00001050d00005A5Asv*sd*bc*sc*i*

Alias: pci:v000012C3d00000058sv*sd*bc*sc*i*

Alias: pci:v000012C3d00005598sv*sd*bc*sc*i*

Alias: pci:v00008C4Ad00001980sv*sd*bc*sc*i*

Srcversion: 6ACE95F441CD26DF9DC31C2

The above example is that we look at the information of the ne2k-pci module. By looking at it, we know that the ne2k-pci module is the driver of the 8029 network card (PCI NE2000 clone driver); the module is located in / lib/modules/2.6.11-1.1369_FC4/kernel/drivers/net/ ne2k-pci.ko We now commonly used network card also has 8139, the driver of the 8139 network card is 8139too; check?

The code is as follows:

[root@localhost beinan] # modinfo 8139too

Let's check the module information of vfat and ntfs again.

The code is as follows:

[root@localhost beinan] # modinfo vfat

[root@localhost beinan] # modinfo ntfs

Try it yourself; note: module names cannot be suffixed. Modules we see through modprobe-l are all suffixed with .ko or .o.

3. Modprobe mounts the new module and the modules that the new module depends on

Modprobe our common function is to mount a module. When a kernel module is mounted, the module that this module depends on is also mounted. Of course, modprobe also lists all kernel modules and removes modules. Let's give an example to talk about our common functions and parameters.

The code is as follows:

Modprobe [- v] [- V] [- C config-file] [- n] [- I] [- Q] [- o] [parameters...]

Modprobe-r [- n] [- I] [- v]...

Modprobe-l-t [- a...]

The above is the use of modprobe. For more detailed help, we can check out man modprobe.

The code is as follows:

[root@localhost beinan] # modprobe-c

Modprobe-c can view the configuration file of modules, such as what is the alias of the module

The code is as follows:

[root@localhost beinan] # modprobe-l

Modprobe-l lists all the modules in the kernel, both mounted and unmounted; through modprobe-l, we can look up the modules we need and mount them according to our needs; in fact, the list of modules read by modprobe-l is located in the / lib/modules/'uname-r 'directory; where uname-r is the kernel version

The code is as follows:

[root@localhost beinan] # uname-r

2.6.11-1.1369_FC4

[root@localhost beinan] # ls / lib/modules/2.6.11-1.1369_FC4/

Through the above orders, try it yourself?

The code is as follows:

[root@localhost beinan] # modprobe module name

Note: Mount a module

For example:

The code is as follows:

[root@localhost beinan] # modprobe ne2k-pci

Note: Mount the ne2k-pci module

The code is as follows:

[root@localhost beinan] # modprobe vfat

Note: Mount the vfat module

The code is as follows:

[root@localhost beinan] # modprobe ntfs

Note: Mount the ntfs module

The code is as follows:

[root@localhost beinan] # lsmod

Note: if you list the mounted modules, we will see the modules of ne2k-pci, vfat, and ntfs

Note: module names cannot be suffixed. Modules we see through modprobe-l are all suffixed with .ko or .o.

The code is as follows:

[root@localhost beinan] # modprobe-r module name

Note: remove loaded modules with the same function as rmmod

Note: module names cannot be suffixed. Modules we see through modprobe-l are all suffixed with .ko or .o.

The code is as follows:

[root@localhost beinan] # modprobe-r module name

For example:

The code is as follows:

[root@localhost beinan] # modprobe-r ne2k-pci

That's all you have to say.

At this point, I believe you have a deeper understanding of "what kernel management commands are in the Linux system". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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