Tutorials Point

  Unix for Beginners
  Unix Shell Programming
  Advanced Unix
  Unix Useful References
  Unix Useful Resources
  Selected Reading

Copyright © 2014 by tutorialspoint

  Home     References     Discussion Forums     About TP  

rmmod - Unix, Linux Command

previous next AddThis Social Bookmark Button



rmmod — simple program to remove a module from the Linux Kernel


rmmod [-f] [-w] [-s] [-v] [modulename]


rmmod is a trivial program to remove a module from the kernel. Most users will want to use modprobe(8) instead, with the -r option.


-v --verbose Print messages about what the program is doing. Usually rmmod only prints messages if something goes wrong.

-f --force This option can be extremely dangerous: it has no effect unless CONFIG_MODULE_FORCE_UNLOAD was set when the kernel was compiled. With this option, you can remove modules which are being used, or which are not designed to be removed, or have been marked as unsafe (see lsmod(8)).

-w --wait Normally, rmmod will refuse to unload modules which are in use. With this option, rmmod will isolate the module, and wait until the module is no longer used. Noone new will be able to use the module, but it’s up to you to make sure the current users eventually finish with it. See lsmod(8)) for information on usage counts.

-s --syslog Send errors to the syslog, instead of standard error.

-V --version Show version of program, and exit. See below for caveats when run on older kernels.


This version of rmmod is for kernels 2.5.48 and above. If it detects a kernel with support for old-style modules (for which much of the work was done in userspace), it will attempt to run rmmod.old in its place, so it is completely transparent to the user.


This manual page Copyright 2002, Rusty Russell, IBM Corporation.


modprobe(8), insmod(8), lsmod(8), rmmod.old(8)

previous next Printer Friendly