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Thread: Newbie to imac

  1. #1
    Newbie to imac
    I have a 27 inch all in one won’t boot past pinwheel won’t allow recovery or safe-mode commands @ boot up any ideas.

  2. #2
    Newbie to imac
    chscag's Avatar
    Member Since
    Jan 23, 2008
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    2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Mojave
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    Welcome to our forums.

    We are going to need more information: Year and model of your iMac 27". Which version of macOS it's running.

    We realize that you can't boot the machine to find out the above information. We're hoping you already know it.

    It does sound like your iMac may have a bad hard drive, but it could also be something else. If possible, try booting the machine from an external source: bootable USB flash drive with macOS on it. Or from another Mac using target disk mode.

  3. #3
    Newbie to imac
    ferrarr's Avatar
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    May 21, 2012
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    Pawtucket, RI, US
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    Your Mac's Specs
    L2014 Mac mini macOS 15, iPhone 8+ iOS 13, 12.9" iPad Pro 1 iPadOS 13,  Pencil 1
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    Also, you may need a USB keyboard, to get the keyboard shortcuts to be recognized.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  4. #4
    Newbie to imac
    IWT's Avatar
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    Jan 23, 2009
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    Born in Scotland, Worked in Scotland then England, Now live in Wales
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    Your Mac's Specs
    iMac 5K Retina 27", August 2019, 3.6GHz Intel Core i9, Memory 32GB, 2TB SSD, macOS Mojave 10.14.6
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    Taking up Bob's point on post #3; if your iMac has a chime (ie normally makes a chime sound on boot up), Bluetooth (BT) isn't recognised or activated until immediately after the first chime. Consequently, if your Keyboard is of the BT type (eg Apple Magic Keyboard), you need to reboot the iMac, wait for the chime, then immediately hold down the Shift key and keep holding it until the Apple logo appears.

    Then it will take you into Safe Mode.

    The same principle applies to using Command plus R to get into Recovery Mode.

    There is a way round this, however. If you have the Apple Magic Keyboard, connect it via USB to the iMac (as you would to recharge the battery). This effectively converts it to a "wired" KB and you can hold down the Shift key (or Cmd plus R) from the start of the reboot.

    See if that helps.

    But above all, we really do need to know as much as possible about the Model, Year, Specs and Operating System (OS) as you are able to provide under your difficult circumstances.

    Ian
    Ian

  5. #5
    I am using a wired key board and have tried the shift and command+r no luck. I tried making a boot drive with free program Transmac. I am also trying to do this using a windows pc. When I look for drive in boot choices it dosen’t show

  6. #6
    Newbie to imac
    ferrarr's Avatar
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    Your Mac's Specs
    L2014 Mac mini macOS 15, iPhone 8+ iOS 13, 12.9" iPad Pro 1 iPadOS 13,  Pencil 1
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    I don't believe that is possible.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  7. #7
    Newbie to imac
    Raz0rEdge's Avatar
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    First, Transmac is not free and meant to read APFS/HFS drives or open DMG files. What exactly are you doing with that when it comes to making your iMac boot?

    Please provide what you've done and are doing with _excruciating_ detail, don't leave anything out.
    --
    Regards
    ...Ashwin


  8. #8
    Well I am presently downloading a copy of mac OS X El Capitan 10.11.1.dmg I then plan on using Transmac to make a bootable pen drive. I then plan to plug it in and see if I can find it to boot from

  9. #9
    Newbie to imac
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
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    Nambucca Heads Australia
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    Your Mac's Specs
    iMac, i7 4GHz, 32GB memory, 1TB Blade, macOS Catalina,
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    Again Transmac will not work and I trust this .dmg file is not a pirated copy?

    Only place to get Mac OS legally is the app Store with an account.
    Last edited by harryb2448; 09-23-2019 at 12:14 AM.
    Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  10. #10
    Newbie to imac
    chscag's Avatar
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    Jan 23, 2008
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    Keller, Texas
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    2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Mojave
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    @Candyman:

    Hopefully, you've downloaded your copy of El Capitan from Apple as that is the only legal place it can be downloaded from. Also, from past experience TransMac does not work.

  11. #11
    Newbie to imac
    Raz0rEdge's Avatar
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    Thank you for the extra info.

    These instructions seem to indicate that you can do what you want to do.
    --
    Regards
    ...Ashwin


  12. #12
    Newbie to imac
    pm-r's Avatar
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    First, Transmac is not free ...

    They do have a free trial available:
    Trial limitation: All features are the same but TransMac will run for 15 days from installation to allow user evaluation.
    About TransMac for Windows


    - Patrick
    ======

  13. #13
    Newbie to imac
    Rod's Avatar
    Member Since
    Jun 12, 2011
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    Melbourne, Australia and Ubud, Bali, Indonesia
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    2015 MacBook Pro Retina 13" macOSX 10.15.1
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    Love to hear how it works out. So many people seem to get stuck on the, "well, you need another bootable source to...." catch. It always seems to come down to trying to buy a bootable USB thumb drive on Amazon or similar.
    Gone are the days when you could just pop the install disc into the disk drive, assuming you could find it of course.
    I used to be conceited but now I'm perfect.

  14. #14
    Newbie to imac
    datars's Avatar
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    What work for me was I installed a new 2T 7200RPM Harddrive. do not use a Green drives. Lots of confit with Apple power management.

    I pick-up my 27" for $325.00 over 2 years ago. It was running very poorly on a 1.5 green drive, and had a fresh installed OSX. this drive was replaced do to a recall on the drive, the same year the iMac was built. with a 1.5T green drive, on Apple website, no green drive was ever used. Only a 1T 7200rpm. My iMac still running well and the 1.5T works well as a Back-up.

    I hope this info will help and others

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