3TB fusion with Windows 7 installed success!!

Discussion in 'iMac' started by torana355, Dec 21, 2012.

  1. torana355, Dec 21, 2012
    Last edited: Dec 21, 2012

    macrumors 68000

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    Dec 8, 2009
    Location:
    Sydney, Australia
    #1
    It took me a few hours but i got it all figured out.

    1. I booted into the recovory partition by holding down comand-r on reboot.I then used terminal to split the fusion link using these commands

    The required commands are:
    (note: you can use diskutil list and diskutil cs list to obtain the volume ID's on your computer)

    diskutil cs deleteVolume < insert fusion logical volume ID here >
    diskutil cs delete < insert coreStorage logical volume group ID here >

    http://cdn.arstechnica.net/wp-content/uploads/2012/11/minifud-ohnoes.jpg

    2. installed OSX on the 128GB SSD from the recovery partition using the OSX installer. (i didnt try this but if you made a bootable backup before starting you could skip this step and just boot into the bootable backup and use the disk utility there (you cant use the recovery partitions disk utility as the volumes show up in red)

    3. Booted into OSX or a bootable backup and used disk utility to partition the HDD in the correct way to bypass the 2.2TB windows issues using this guide :

    You must make 3 partitions for this to work:

    The first one will be your OSX partition
    The second will be your bootcamp partition ( this must be in Fat 32!!!)
    The last one will be a storage partition (you must have this partition for windows to boot, i stored all my movies on there.)

    The trick is that the Bootcamp partition has to be in the first 2.2TB of space. What i did was make the OSX partition 500GB, the bootcamp partition 500GB then the storage partion 2TB. Aslong as the first two partitions don't go over 2.2 TB it will work.

    4. Rebooted into the recovery partition and Relinked the fusion drive in terminal using this guide, remember to use the full identifier, for example (disk0s2) as the HDD will be partitioned and you only want to fuse the single partion with the ssd. You will fuse the OSX partition from the partitions we just made (mine was 500GB) and the SSD data partition which should be around 120GB http://www.macworld.com.au/help/how-to-make-your-own-fusion-drive-80884/

    5. Once the drives are fused back together i reinstalled OSX on the new fusion partition that we just created.

    6. Installed windows off a windows 7 install usb. You don't have to use bootcamp at all, you just bootup off the Win 7 usb stick and download the bootcamp drivers from here http://swcdn.apple.com/content/down...0guny5bw6vm7to92ilew38ptli0z5/BootCampESD.pkg


    Ask if you have any questions.
     
  2. macrumors G5

    Macman45

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    #2
    I think a lot of people would find a detailed description useful...When you say you "Broke The Fusion Link" how? DU? do they appear as separate drives? I don't get mine until January but I've looked at DU in the 21.5's and the drive appears as one unit.
     
  3. thread starter macrumors 68000

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    #3
    Using terminal
     
  4. macrumors G5

    Macman45

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    #4
    Got it....Not planning on BC myself, but good to know it can be done on the larger drives....Report back if you have issues down the line.:)
     
  5. macrumors 6502

    macuserpl

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    Location:
    Szczecin, Poland
    #5
    Good to know that it's possible. I've ordered 3TB Fusion Drive so I will be thankful for a full guide :)
     
  6. thread starter macrumors 68000

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    Sydney, Australia
    #6
    No worries, i just benched marked my 680mx in windows with zero issues, im currently reinstalling all my apps in OSX :)
     
  7. macrumors 65816

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  8. thread starter macrumors 68000

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    #8
  9. macrumors 603

    Joined:
    Feb 20, 2009
    #9
    A few questions about fusion and partitioning (although not actually pertinent to Windows):

    If I start out with a fusion drive (128gb SSD + 1tb HDD), can I do the following?

    1. Manually "un-fuse" the two drives (yes, I know this can be done), then...

    2. PARTITION the 1tb HDD drive into, say, 4 separate partitions (256gb each), then...

    3. RE-fuse ONE of the partitions with the SSD drive.

    The results should appear on the desktop as:
    - fusion drive (SSD + HDD)
    - another partition
    - another partition
    - another partition
    (4 disk icons, total)

    ??
     
  10. thread starter macrumors 68000

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    #10
    Yes that is exactly what you have to do to get around the 2.2TB bootcamp issue.

    I have my fusion drive (1 partition of the hdd and the ssd)
    a bootcamp partion (another partition on the hdd)
    another storage partition (on the hdd)
     
  11. macrumors member

    Joined:
    Sep 3, 2010
    #11


    Are you saying I could install bootcamp on a 1TB Partition at the end of the drive? which means I essentially have:

    2TB Fusion Drive Partition for OSX
    1TB Bootcamp partition (Windows and storage together)
     
  12. thread starter macrumors 68000

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    #12
    No the Bootcamp partition has to be in the FIRST 2.2 TB of the 3TB drive. You need to have a MINIMUM 800GB data partition at the end of the drive which leaves 2.2TB for the OSX and bootcamp partiton. This works ok as you don't need your movies or music on the fusion drive anyway, it will actually make the fusion drive work better.
     
  13. macrumors 65816

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    #13
  14. torana355, Dec 21, 2012
    Last edited: Dec 21, 2012

    thread starter macrumors 68000

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    #14
    Yes i did read that thread and that link, but that is not the part the OP was missing in that thread, they were missing the part where you have to refuse the partitioned drive back together... You try and use the instructions in that other thread and i bet you cant get it working, trust me i tried ;)
     
  15. macrumors member

    qamaro

    Joined:
    Jun 30, 2007
    #15
    I think torana355 was referring to the fact that the step by step for using terminal commands to setup the Fusion Break then SSD + Partition Fusion isn't very clear in most of these threads.

    The twocanoes guide is basically just for the 3TB drive portion of the work effort.
     
  16. thread starter macrumors 68000

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    #16
    Bingo!!!
     
  17. macrumors member

    qamaro

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    Jun 30, 2007
    #17
    I'm eagerly awaiting your step-by-step guide. My system is in route on the 27th, so I'm pretty stoked that you were able to find success in doing this setup! :D
     
  18. macrumors newbie

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    Dec 18, 2012
    #18
  19. thread starter macrumors 68000

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    #19
    Ive already updated the OP and put a lot more detail in there, if there is anything you don't understand feel free to ask and i will try to explain it as best i can :) It really is quite easy and i don't understand command lines at all lol.
     
  20. macrumors 6502a

    brock2621

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    Location:
    Kentucky
    #20
    Can you look into figuring out how to run Windows completely off of an external drive? (USB 3 or Thunderbolt?).

    I'm just so nervous cutting up drives in terminal etc. when I also have work files on this computer.
     
  21. thread starter macrumors 68000

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    #21
    Oh the first thing i did before doing ANYTHING was make a fully bootable backup with superduper to an external usb3 drive. That way if anything went wrong i could just let disk utility fuse the drives back together and restore from the backup.

    There is already a way to get windows to boot off an external but it much more complicated then this lol.
     
  22. macrumors newbie

    Joined:
    Dec 16, 2012
    Location:
    Gateshead//Newcastle/UK
    #22
    This has been done already, detailed instructions Here

    In Short,

    Make a bootcamp usb pen drive with windows & Drivers, create a small (4gb) partition on the internal drive, install windows on the external ssd. pretty straight forward to be honest.

    Ste0803
     
  23. macrumors 6502a

    Joined:
    Nov 3, 2009
    #23
    Good info! I sent my 2012 iMac back, but this solution would've worked well for me since my 2011 iMac has both a 256GB SSD and a 2TB HDD (Macintosh HD and Macintosh HD 2). Setting up the Fusion drive and Windows partition like you described would've helped me migrate everything from my 2011 iMac to my 2012 iMac. I was having trouble getting my two separate drives migrated to the single Fusion drive...I had finally figured it out, but decided to return the computer before the migration was complete. Maintaining two separate HFS partitions would've made things much easier.
     
  24. jberends, Dec 21, 2012
    Last edited: Dec 21, 2012

    macrumors newbie

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    Netherlands
    #24
    I have a step-by-step guide on the procedure I followed. That is to break the fusion drive, repartition the drive and rebuilt the fusion. My performance is absolutely on par in the new setup. Bring your own time machine backup!

    http://tmblr.co/ZeDCRyZsh-kC
     
  25. macrumors 6502a

    brock2621

    Joined:
    Jun 8, 2007
    Location:
    Kentucky
    #25
    If i'm understanding this correct, I would have to do BOTH of these processes for it to work, correct? I would STILL need to do bootcamp on an internal drive (this process), as well as do the instructions here: http://forums.macrumors.com/showthread.php?t=1508618.

    Correct me if I'm wrong?
     

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