have a Lenovo Laptop, the ideapad z710, it has a
Intel Core i7-4710MQ NVIDIA GeForce 840M/2GB 16GB Ram 1TB SSHD
and I want to install Ubuntu which I use as my main OS and beside that Windows 10 and OS X 10.11.
I already have my 3 bootable USB-Sticks and I want to know if I am doing this right.
First I boot my GParted Live USB and create a new partition-table. Then I create 5 partitions:
200MB fat32 efi Flag(Boot) 250GB hfs+ MAC 250GB ntfs WINDOWS 218GB ext4 LINUX 32GB swap 250GB ntfs ---> File Share for all 3 partitions
Then I start my OS X USB and Erase the MAC partition to a hfs+ Journaled. Next I install OS X to it. I install Windows on the WINDOWS partition and finally I am installing Ubuntu to the LINUX part. and the bootloader to the efi part.. If i than start my Notebook i come into GRUB which I like, but I can't boot my OS X from there. I can only boot it if I insert my USB and start it from there. What should I do that I can boot OS X from GRUB because I want to use it as my bootloader!
So now my questions:
Are my steps right? What can I do that my GRUB is working right? How can I share the last partition between all 3 OSes
Thank you for your help