You can check with csrutil status if it’s enabled or not.

Type reboot to reboot into standard OSX.

To disable the integrity protection, enter csrutil disable.

Once loaded, in the top menu select Utilities->Terminal.

Reboot your Mac and at the boot chime, press cmd-r to boot into the recovery image.

To make necessary changes to system files, you must disable the integrity checks of El Capitan Do not follow it unless you know what you are doing and most of all: create a backup first ! I will not take any responsibility for loss of data or wrecked OS installations (incl. NOTE: The following procedure is not without risk.

optional: Install & Configure VirtualBox to boot Windows/Linux from Raw disk in OSX.

Install ntfs-3g in OSX and Linux to access the shared data partition.

Fix the Windows boot process (error 0xc000000e).

Please let me know if it worked or where you got stuck to make it more complete. To save you that time, I decided to write this guide. I’ve tried many things that in the end didn’t work out. I spent literally 2.5 days (that’s 36 hours) on the internet, and trying and testing to remedy all the quirks and problems.

Another advantage might be to use Docker natively in Linux instead of a VM.

Windows and OSX do too much soft scrolling and cause a growing lag between real output and display. scrolling of console output in Eclipse is only usable under Linux. But there are some use cases where you need to be able to boot natively into an OS - and it’s not just gaming in Windows, e.g. And what if you’d like to not just install a dual boot but triple or quadruple boot? Of course, you might overcome most challenges by simply using a virtual machine in VirtualBox, Parallels or VMWare Fusion. What if you want to share data between the two operating systems, for instance? Windows can’t access Mac’s HFS+ file system and Apple’s implementation of NTFS drivers to access Windows file systems is so buggy, they only dare to give you read access. But BootCamp doesn’t give you enough flexibility.

Once finished, you can select which OS to boot by pressing “alt” when the boot chime sounds. It will ask you how much space you want to allocate for each environment, ask you for a Windows 8 or 10 ISO or CD-ROM, and then start the process. Installing Windows 10 alongside with Mac OS is pretty straightforward with Apple’s BootCamp. Installation of VMWare to boot the raw Windows / Linux partition in OSX (optional).

Dual os mac and windows 10