Just read at IW that the new Apple OS El Capitan has locked out users from gaining access to root.
If you haven’t heard, Apple has locked out root from various file system paths and core functions in Mac OS X 10.11 El Capitan. The new sheriff here is System Integrity Protection (SIP), which reduces root privileges in an attempt to increase security.
The gist is that no user — not even root — can write to /usr, /bin, /System, and /sbin or debug protected processes. Apple has also removed the ability to use unsigned kernel extensions through boot-time flags. It’s important to note that SIP can be disabled, through the recovery partition, but this will typically be done only for development and testing purposes.
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