APFS High Sierra Boot?

Discussion in 'Mac Pro' started by haralds, Jul 25, 2017.

  1. haralds macrumors 6502a


    Jan 3, 2014
    Silicon Valley, CA
    Has anybody tried to boot off APFS under High Sierra on a 5,1?

    Based on beta 4 release notes, only mid 2012 will be officially supported in a future beta.
  2. Draeconis, Jul 26, 2017
    Last edited: Jul 26, 2017

    Draeconis macrumors 6502a

    May 6, 2008
    As you say, it currently won't work. I assume that they haven't included the necessary firmware update to support APFS.

    Mid 2012 is a Mid 2010; they're both identified as a MacPro5,1, so any update to the 2012 model would apply to the 2010.
  3. h9826790 macrumors G4


    Apr 3, 2014
    Hong Kong
    From memory, when we install 10.13 beta. There is no option for us to choose APFS. That's a bit different then other Mac.
  4. chrfr macrumors 604

    Jul 11, 2009
    There's been no firmware update to enable APFS booting, so it won't work.
  5. haralds thread starter macrumors 6502a


    Jan 3, 2014
    Silicon Valley, CA
    Hope they decide to update all 5,1, if EFI changes are needed.
  6. Demigod Mac macrumors 6502a

    Apr 25, 2008
    This is something I've wondered about. I know the 2010 and 2012 are identical physically and from a model ID perspective, but are they from an Apple support perspective?

    Will Apple cut off the 2010 from support 2 years earlier, and can a 2010 be made to look like a 2012 if this happens?
  7. Earl Urley macrumors 6502

    Nov 10, 2014

    The serial number would still identify the machine as a 2010 model so it'd be pointless
  8. flowrider macrumors 603


    Nov 23, 2012
    ^^^^But, when the time comes we may be able to change the SN with a hack. Just sayin':rolleyes:

  9. TheIguana macrumors 6502a


    Sep 26, 2004
    It really depends on how Apple decides to go about providing support for the Mac Pro. Apple has not explicitly stated that an EFI/Boot ROM update is forthcoming, only that support will be added in some way.

    1) Firmware (EFI) update route: 2010 and 2012 will likely both be upgradable but Apple will likely only document that the 2012 models can take it. There is no outward hardware difference between these models. This might also mean that the 2009 models which are also very similar to the 2010/2012 Mac Pro's will be able to get this update via a wee bit of installer hacking (ala the Mac Pro 4,1 to 5,1 firmware upgrades).

    Earl Urley, Apple traditionally does not use the serial number as a marker for updates but rather the Model Identifier. So while the inevitable support site might only list 2012, the reality may be different.

    2) Helper Partition route: The other option is that Apple implements an HFS+ helper partition on an APFS drive that starts the Mac Pro up and then lets it boot into the APFS partition. This would mean that effectively any Mac (2009 firmware upgraded, 2010/2012) that can run High Sierra would be able to be upgraded to running APFS.

    My bet is on a helper partition and not a firmware update.
  10. vkd macrumors 6502a


    Sep 10, 2012
    AFAI can tell, what you meant to ask was, "Will Apple cut off the 2012 from support 2 year earlier", as that makes more sense from where I'm standing.

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