This is an updated version of the guide published last year: how create a solid dual-boot Debian installation on Macbook (4,1) while preserving the MacOS session. KDE is the desktop environment I’ve chosen to install (last year was Mate), be free to select your favorite one in the last steps.
In your MacOS session, install rEFIt or rEFInd, reboot twice. Create your Debian netinst USB key (with Unetbootin), plug it in, reboot your Mac while pressing the alt key. Boot menu will appear, select the USB device and start the install. If the device is not detected, try another distro or another USB creator. Keep in mind during the partitioning that you’ll need a 200 Mo EFI boot partition. And of course, do not modify your HFS Mac disk. Continue reading “Debian Jessie dual-boot on Mac”