Black screen after installing grub Bootloader
Hello,
I have a 13 inch Macbook Pro Retina Late 2014.
Today I tried to install linux on the Macbook, but after rebooting the screen stays black.
The boot menu also don't appear when I hold the "alt" key.
Have anyone an idea how to start from an usb stick or something else?
MacBook Pro with Retina display, OS X El Capitan (10.11)