I have a MacBookPro retina (id MacBookPro10,1 mid 2012) with El Capitan installed and want to create a Windows partition through BootCamp. I already did that some time ago without that much trouble, but had to wipe out the entire harddrive and install both systems from scratch. This time I did:
- By "hacking" BootCamp made it install Windows 7 boot into a USB I have.
- Downloaded and copied over BootCamp drivers for windows into this bootable stick.
- Disabled FileVault, that prevented external devices (even recovery HD) from being seen on boot.
- Turned off System Integrity Protection (had to do that already to make step 1 happen) with
csrutil disablein recovery.
The problem I am having now is that the USB is not visible on (hold option key) boot even if it is plugged in and is lighting up. I tried installing reFit, but it also does not see the USB. Not only that, the interesting thing is that this USB is not even visible in reFit partition table you can see in the options.
UPD: another interesting thing, the USB is not visible in
startup disk setting inside OSX, this may mean that for some reason even if the USB drive itself is visible, Mac does not recognize it as bootable. Or is it because startup disk is not able to see USBs at all?
How can I troubleshoot this on El Capitan?