This is a follow up to the previous post on this topic – this one contains more comprehensive instructions.
The first stage is to prepare the drive for use in the Mac. Due to the drive configuration and Western Digital’s lack of foresight/focus on Windows – this stage must be completed in a Windows PC.
- The USB -> SATA cable
- The USB key (this has the software to ‘unlock’ the spinning partition of the dual drive
- The drive itself
- A windows PC/laptop which you can take the hard disk out of easily
- Skill commensurate to the activities of removing and reinstalling hard disks
- The ability to find your way around the terminal command line (linux or Mac)
- A USB based installer for OS X (see here for a useful tool to help with this)
- A working Time Machine backup of your Mac – update this before you start.
- Boot the laptop in to Windows off it’s main hard disk – make sure you have an Internet connection and a browser with Adobe Flash capability.
- Connect the Black2 disk to the laptop using the USB -> SATA cable.
- Insert the WD USB key – crazy automatic things will start happening and you’ll find yourself at the product website on http://www.wdc.com – you can safely remove the USB key at this point.
- On the Overview tab which shows by default, click the Data Transfer Software link.
- Download the Acronis True Image WD Edition software (~230MB in size).
- Go back to the Overview tab and download the Partition Software as well – we’ll need that in step 11.
- Install the above software and start it, selecting Clone Drive.
- Use the Automatic option and, after some processing, you’ll be told that Windows needs to restart – click through this message for Acronis to start it’s own boot Loader and complete the clone process – the laptop will shut down automatically once it’s completed.
- Now things get physical. Remove the drive from your donor laptop and replace with the Black2.
- Boot and wait. Hopefully it’ll just start up pretty much like normal here. Don’t be surprised if Windows reports that a chkdsk needs to be run during startup – the disk has been completely re-written after all!
- Once Windows has started, it’ll likely request a reboot to complete installation of the new hardware. I know, I know, using Windows is a pain.
- Now we need the Partition Software which hopefully was downloaded back in step 5. Install it and follow the wizard through.
- Remove the disk from the PC laptop and put it’s own laptop back. Happy Windows machine.
- Connect the Black2 back to the SATA USB adaptor and connect it up to your Mac.
- Fire up Disk Utility and erase the disk – make it a single Mac OS Extended (Journaled) volume.
- Download the OS X Recovery Disk Assistant from here – run it to create a correctly sized recovery partition on the disk.
- Now, in Disk Utility again, create two partitions on the disk. Make the first 119GB (to allow for the first part of the disk being used for the Recovery partition. The second should be 1TB. I called mine SSD and HDD just for clarity.
- In Terminal, type: diskutil list and press Enter. You should be able to find the disk easily if you named the disks as I did in Stage Two above.
- Once you’ve found the SSD and HDD partitions, note down the Identifier for each of the partitions
- In Terminal, type: sudo diskutil cs create Fusion disk4s2 disk4s3 (the last two items should be the Identifier of your partitions – SSD first, then HDD.
- Check through the resulting text to make sure everything worked without error – here’s mine for reference:
- Started CoreStorage operation
Touching partition type on disk4s2
Adding disk4s2 to Logical Volume Group
Touching partition type on disk4s3
Adding disk4s3 to Logical Volume Group
Creating Core Storage Logical Volume Group
Switching disk4s2 to Core Storage
Switching disk4s3 to Core Storage
Waiting for Logical Volume Group to appear
Discovered new Logical Volume Group “2A40C88F-0E1F-433D-BEA5-55A19BEBCB9F”
Core Storage LVG UUID: 2A40C88F-0E1F-433D-BEA5-55A19BEBCB9F
Finished CoreStorage operation
- Started CoreStorage operation
- Once the Fusion drive is created, it needs to be formatted. But before we can do that, we need to find the ID for the Fusion drive. In Terminal, type: diskutil cs list – the long alphanumeric string for the Logical Volume Group is the one you want – copy that to the clipboard – we’ll use it in the command in Step 6.
- Now, in Terminal, type: diskutil cs createVolume <ID string> jhfs+ “Macintosh HD” 100%
- This will create a filesystem called Macintosh HD that takes all the space available on the Fusion drive
- All going well, the disk is now ready for final installation in your OS X device
This is where your USB installer for OS X & Time Machine backup come into play – plug it into the Mac and boot from it and reinstall OS X onto the new drive then follow the instructions to restore from your Time Machine backup.
Note that the first steps of this procedure would also enable the drive for use in a linux machine. With root mounted on the SSD and /home on the HDD portion, this would also speed up your favourite linux box!