Operation Not Permitted when on root - El Capitan rootless disabled

Question

I am trying to move something to  usr bin on OS X El Capitan  I have disabled rootless using the following commands  sudo nvram boot-args  rootless 0   sudo reboot   but I keep getting the same error   MacBook-Air   Mark  sudo cp class-dump  usr bin Password  cp   usr bin class-dump  Operation not permitted MacBook-Air   Mark  sudo mv class-dump  usr bin mv  rename class-dump to  usr bin class-dump  Operation not permitted

User · Accepted Answer

Nvm  For anyone else having this problem you need to reboot your mac and press   R when booting up  Then go into Utilities   Terminal and type the following commands   csrutil disable reboot    This is a result of System Integrity Protection  More info here   EDIT  If you know what you are doing and are used to running Linux  you should use the above solution as many of the SIP restrictions are a complete pain in the ass    However  if you are a tinkerer noob  poweruser  and don t know what you are doing  this can be very dangerous and you are better off using the answer below

User · Answer

If after calling  csrutil disabled  still your command does not work  try with  sudo  in terminal  for example   sudo mv geckodriver  usr local bin   And it should work

User · Answer

If you want to take control of  usr bin   You will need to reboot your system   Right after the boot sound  Hold down Command-R to boot into the Recovery System  Click the Utilities menu and select Terminal  Type csrutil disable and press return  Click the   menu and select Restart  Once you have committed your changes  make sure to re-enable SIP  It does a lot to protect your system   Same steps as above except type  csrutil enable

User · Answer

Correct solution is to copy or install to  usr local bin not  usr bin This is due to System Integrity Protection  SIP   SIP makes  usr bin read-only but leaves  usr local as read-write   SIP should not be disabled as stated in the answer above because it adds another layer of protection against malware gaining root access  Here is a complete explanation of what SIP does and why it is useful   As suggested in this answer one should not disable SIP  rootless mode   It is not recommended to disable rootless mode  The best practice is to install custom stuff to   usr local  only

[macos] Operation Not Permitted when on root - El Capitan (rootless disabled)

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