iMac 27" 2010 EFI update?

Discussion in 'iMac' started by reukiodo, Oct 7, 2015.

  1. reukiodo macrumors member

    reukiodo

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    #1
    I searched the internet and couldn't find any information, but it seems that the latest El Capitan update changed my iMac11,3's EFI version to IM112.0057.B03 while Apple's site still says IM112.0057.B01 is the current version.

    Has anyone else had this? Does anyone know what changes are made in this update?
     

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  2. Blackbird1100 macrumors newbie

    Joined:
    Jul 3, 2010
    #2

    I also have a 27" iMac Mid 2010 (11,3)

    I don't know what my prior EFI version was, after El Capitan it is now;
    IM112.0057.B02
     
  3. reukiodo thread starter macrumors member

    reukiodo

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    #3
    Maybe because I'm on the Beta? It came with that 15B30a update.
     
  4. cbrand493 macrumors 6502

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    #4
    Going by the fact it's such a minor build number change, I'll guess it's a very minor tweak for compatibility.
     
  5. reukiodo thread starter macrumors member

    reukiodo

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    #5
    Another EFI update today with the latest Sierra 10.12.4 beta update: IM112.0057.B04
     

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  6. reukiodo thread starter macrumors member

    reukiodo

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    #6
    Another EFI update today with the latest Sierra 10.12.4 beta (16E175b) update: IM112.0057.B08
     

    Attached Files:

  7. reukiodo thread starter macrumors member

    reukiodo

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    #7
    Another EFI update today with the latest Sierra 10.12.4 beta (16E183b) update: IM112.0057.B09
     

    Attached Files:

  8. KennethS macrumors regular

    KennethS

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    #8
    Thanks very much for pointing this out. The last couple of updates I got that horrid long beep noise on first reboot during the update that after searching seemed to relate to an EFI update/reset. I have been worried that my iMac is on its last legs or something. I guess I can rest a little easier!
     
  9. reukiodo thread starter macrumors member

    reukiodo

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    #9
    Do you also have the 2010 27" iMac?
     
  10. KennethS macrumors regular

    KennethS

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    #10
    Yes, Mid 2010. I upgraded to an SSD a couple of years back and it still works great (bought it new in late 2010).
     
  11. reukiodo thread starter macrumors member

    reukiodo

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    #11
    Another EFI update today with the latest Sierra 10.13 beta (17A264c) update: IM112.0057.B0D
     

    Attached Files:

  12. redheeler macrumors 603

    redheeler

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    #12
    Necessary for bootable Apple File System support.
     
  13. reukiodo thread starter macrumors member

    reukiodo

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    #13
    I thought the Mac's EFI booted to the HD's EFI partition, which should be FAT32... If not, will all the supported systems get EFI updates to support AFS booting?
     
  14. reukiodo thread starter macrumors member

    reukiodo

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    #14
    Another EFI update today with the latest High Sierra 10.13 beta (17A306f) update: IM112.0058.B01

    This one actually bumps up the major version!
     

    Attached Files:

  15. reukiodo thread starter macrumors member

    reukiodo

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    #15
    Another EFI update today with the latest High Sierra 10.13 beta (17A330h) update: IM112.005A.B00

    Another bump up to the major version, even skipping 0059!
     

    Attached Files:

  16. reukiodo thread starter macrumors member

    reukiodo

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    #16
    Another EFI update with the latest High Sierra 10.13 beta 6 (17A344b) update: IM112.005B.B00

    Another bump up to the major version.
     

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