The composition of the 1.Linux
consists of kernel and corresponding function module, kernel/boot/vmlinuz-"kernel version number" file, module file in/lib/modules/version number/directory (for. ko files)
In the/proc/sys/directory can modify the file to modify the kernel parameters (note that these files can not be opened with Vim to modify the only way to use redirection)
echo "www.luochen.com" >/proc/sys/kernel/hostname
You can change that, too.
sysctl-w kernel.hostname= "luochen.com" can take effect immediately, but cannot be permanently effective
2./etc/sysctl.conf files are permanently valid and need to be restarted
sysctl-p: Reread config file, immediately effective
SYSCTL-A: Show all kernel parameters and their values
3. Kernel Module Management
A.lsmod: View all loaded Modules
B.modprobe mod_name: Loading a module
C.modprobe-r mod_name: Uninstalling a module
D.modinfo mod_name: View specific information about the module
E.insmod/path/to/module_file: Load Module
F.rmmod mod_name: Removing modules
G.depmod/path/to/modiles_dir: Building Module dependencies
4. Kernel compilation
Features in the kernel, in addition to the core functions, at compile time, most of the features have three choices:
1. Do not use this function
2. Compile into kernel module
3. Compile into kernel
5. How to manually compile the kernel
A. Make Gconfig:gnome desktop environment needs to install the Graphics Development Library Group GNOME Software Development
Make KCONFIG:KDE desktop environment requires installation of the Graphics Development Library Group KDE software development
Here's another way to use it.
Make Menuconfig
B.make
C.make Modules_install
D.make Install
E. Restarting the new system
F. Manually compiling the kernel is to try not to use remote connections (compilation takes a long time and may be interrupted unexpectedly)
If you must use the screen command only remotely
yum-y Install screen installation screen
Screen command:
Screen-ls: Displays the already established screen
Screen: Open a new display directly
CTRL + A, D: removing the screen
Screen-r ID: Revert back to a screen
Exit: Exit
G. Two compile-time cleanup, before cleaning, back up the configuration file, if necessary. config:
Make clean or
Make Mrproper
This article is from "Luo Chen's blog" blog, please be sure to keep this source http://luochen2015.blog.51cto.com/9772274/1651912
Linux kernel and kernel modules