Rmmod: chdir (/lib/modules): no such file or directory solution

 

You must create an empty directory such as/lib/modules/2.6.30.4. Otherwise, you Cannot uninstall the Ko module. # Rmmod nls_cp936 Rmmod: chdir (/lib/modules): no such file or directory However, you can uninstall nls_cp936, but there will always be a prompt: Rmmod: module 'nls _ cp936 'not found         initial findings , Originally, this was compiled kernel make modules_install A generated directory , however, it was tested that rmmod: module 'nls _ cp936 'not found comes from busybox, not from kernel.

1. Create an empty/lib/modules/2.6.30 directory.

2. Use the following source code to generate the rmmod command. You can unmount the Ko module without any prompts. [Luther. gliethttp]

# Include <stdio. h>

# Include <stdlib. h>

# Include <unistd. h>

# Include <fcntl. h>

# Include <string. h>

# Include <errno. h>

Int main (INT argc, char * argv [])

{

Const char * modname = argv [1];

Int ret =-1;

Int maxtry = 10;

While (maxtry --> 0 ){

Ret = delete_module (modname, o_nonblock | o_excl); // The system calls sys_delete_module.

If (Ret <0 & errno = eagain)

Usleep (500000 );

Else

Break;

}

If (Ret! = 0)

Printf ("unable to unload driver module \" % s \ ": % s \ n ",

Modname, strerror (errno ));

}

 

3. Copy the generated command to the file system

# Arm-Linux-gcc-static-O rmmod. c

# Arm-Linux-strip-s rmmod

# Cp rmmod/nfs/

CP/nfs/rmmod/sbin

 

This article from the csdn blog, reproduced please indicate the source: http://blog.csdn.net/qiaoliang328/archive/2010/01/15/5191821.aspx