Operation not permitted

question

On Mac 10.11 (El Capitan), an Operation not permitted error occurs when operating on a system-protected folder.

And it can't be solved by sudo

 

reason

This is the newly introduced defense mechanism  System Integrity Protection of mac

You can view it with the following command

 

csrutil status

 

 

solution

If you must operate in the system folder, you can turn off this mode:

1. Restart, press and hold Command+R on the boot loading interface to enter recovery mode,

2. Open Terminal and enter the command

 

csrutil disable

 3. Restart again to operate with sudo

 

 

If you need to re-enable the defense mechanism, you can use the same method to enter the recovery mode command line, enter

 

csrutil enable

 

 

see

Unix “ln -s” command not permitted in OSX El Capitan Beta3

"Operation not permitted" in /usr/bin in Mac OS X 11

Operation Not Permitted when on root El capitan (rootless disabled) [closed]