I have a Macbook Pro 13 mid-2012. It was shipped with a 500GB HDD, to which I added an additional SSD drive (128GB). After installing my SSD in a caddy, thus replacing the optical drive, I installed a new installation of OS X on my brand new SSD. I kept the OS X partition on the original HDD, as I wanted to keep my personal files.
Then I installed Windows in a Bootcamp partition on the HDD, as Windows doesn't seem to be working properly when installed on a hard drive which is not on SATA 0 bay (the SSD is on SATA 1).
I wanted to install Ubuntu, which I've been able to do on the SSD. I had to install rEFInd in order to allow this triple-boot configuration to work.
As I am an ever-changing geek, I wanted to install Linux Mint instead of my Ubuntu. The problem is that it doesn't appear to be as easy as Ubuntu. I wasn't able to boot on my fresh Mint after installation completed.
I first tried to install the GRUB loader on the legacy Recovery HD partition on the HDD (which became useless since I got a new one on the SSD when I reinstalled OS X), then I tried to install it on the same partition as Mint, and finally I tried without installing any GRUB. None of these worked.
Here is the actual disks partitioning scheme. Please note that the is a 650MB unallocated partition between disk0s2 and disk0s3, which is not shown by diskutil. It used to be a Windows system partition.
/dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk0 1: EFI 209.7 MB disk0s1 2: Apple_HFS Datas 349.0 GB disk0s2 3: Microsoft Basic Data BOOTCAMP 150.2 GB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *128.0 GB disk1 1: EFI 209.7 MB disk1s1 2: Apple_HFS MacX 90.0 GB disk1s2 3: Apple_Boot Recovery HD 650.0 MB disk1s3 4: Microsoft Basic Data 37.2 GB disk1s4
I am trying to install Mint on disk1s4. As I said previously, there is a free gap of 650M between Datas and BOOTCAMP, which can be used to install a GRUB loader, if needed.
I would appreciate any help or lead, as long as it is not "reinstall the whole thing".