What is System Integrity Protection
Apple macOS versions since El Capitan 10.11 have a security feature called System Integrity Protection (also known as SIP or “rootless”). It prevents 3rd party processes from modifying of certain system processes, files and folders regardless if they are launched by the root user or not. This mechanism is designed to avoid additional risks.
In particular, these limitations are related to partitioning, as 3rd party applications are not allowed to modify partition map on the system HD. Therefore, Camptune X is not able to redistribute free space on the HD between Boot Camp and Mac OS partitions.
How to manage SIP
SIP can be managed by means of csrutil utility. On all macOS versions starting from El Capitan the feature is enabled by default. To check if SIP is enabled in your system, use the command csrutil status:
It is possible, to turn SIP off, in order to give Camptune X proper permissions for completing the process of resizing. For this purpose, boot into recovery mode holding down the Command and R keys at startup, and launch the terminal utility:
Perform the command csrutil disable:
In this way SIP will be disabled on your computer. Now reboot into regular mode, and run Camptune X.
How to use Camptune X without disabling SIP
To avoid disabling SIP, you can create a bootable drive with Camptune X installed, and perform redistribution of free space on the system HD booting from this media.
Please keep in mind that macOS Sierra doesn’t support creating Recovery Media yet. The only way to use Camptune in this OS is to disable SIP.
If you start Camptune X on a computer with enabled SIP, this message will appear:
Go to Create Boot Media and choose an external disk for this purpose:
Wait, until the process of creating recovery media is completed.
Once this operation is successfully completed, a dialog box suggesting you to boot from the created media will be displayed.
Click Restart now to boot from it. If you don’t want to restart now, then click Don’t restart.
You can start up from the created boot media later. For this purpose, reboot your computer pressing and holding the Option key immediately, so that the Startup Manager opens. Select the required bootable partition and wait until it loads. Then launch CamptuneX.app and perform the required redistribution of free space on the HD.
Note: Camptune X recovery creation might fail in case of broken Recovery HD. If Recovery HD is damaged, Internet Recovery will start upon boot from Recovery HD, which is totally safe and won’t affect your installed OS X. Just make sure your Mac is connected to Internet using wired connection. Boot from Recovery HD again after Internet Recovery process is completed.