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  1. #1

    Member Since
    Feb 17, 2017
    my macbook pro does not detected bootable usb
    hey guys i got a used macbook pro and i wanted to do a fresh install because it didnt have any operating system , anyway i made a bootable flash drive using transmac and i used al capitan os .dmg after finishing with the transmac copying to the flash drive when i attach it to my mac it does not boot it does not show the flash drive only the recovery option , i can see the flash drive in the disk utility but it does not appear in the boot up section .. i used other os's but same problem any soultion please ?

  2. #2

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    North Louisiana, USA
    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+, 2015 iMac
    After reading your post the first question I have is where the El Capitan .dmg file came from? When El Capitan comes from the Mac App Store it's not distributed as a .dmg. If the download is from the App Store and the download is legit Transmac is not the tool of choice.
    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  3. #3

    ferrarr's Avatar
    Member Since
    May 21, 2012
    Pawtucket, RI, USA
    L2014 Mac mini macOS 10.13, iPhone 6 iOS 11, iPad Pro 1 12.9" iOS 11,  Pencil 1
    To make a bootable USB of any Mac OS X/Mac OS/macOS, you need to use a Mac.

    Do you know what model and year the MBP is? Did you try to boot into Recovery?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  4. #4

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac, i7 4GHz, 32GB memory, 1TB Flash Storage, OS X.12.6.
    1. Transmac don't work.

    2. Suggest not using pirated copies of the operating system.

    3. Establish an Apple ID if you do not have one and download directly from the App Store.

    4. After download completes, then make the bootable USB thumb drive using DiskmakerX or similar.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

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