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Editor to share with you the use of linux rdev command query, set up the kernel image file, I believe that most people do not know much, so share this article for you to learn, I hope you will learn a lot after reading this article, let's go to learn the method!

The rdev command can be used to query / set the root device of the kernel image file, RAM disk size, or video mode. The rdev command with no arguments outputs the / etc/mtab file line of the current root file system.

Syntax format: rdev [parameters]

Common parameters:

-r makes rdev run as ramsize-R makes rdev run as rootflags-v makes rdev run as vidmode-h provides assistance

Reference example

Output the / etc/mtab file line of the current root file system:

[root@linuxcool ~] # rdev

Run as ramsize:

[root@linuxcool ~] # rdev-r

Run as rootflags:

[root@linuxcool] # rdev-R

Make rdev run as vidmode:

[root@linuxcool] # rdev-v above is to query and set up all the contents of the kernel image file using the rdev command of linux. Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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