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Just speculating, but if anyone tries it please post your results here.Īgain! I haven't tried this and who ever tries this will do so at their own risk! If folks are creating EL Capitan OS X bootable usb installers on older hardware, they may have to update their Mac firmware to get it to work. I believe UEFI support on the 2013 was probably not fully supported then. I wouldn't be surprised if it has to deal with UEFI support. I will be testing it on three different model macs and post my results in the coming days. I decided to stick the same usb in a mac air model A1466 and WALA! It recognized the usb drive and I was able to boot into it. I created the usb stick using diskmaker X on a older 2013 and tried 4 different methods of creating the bootable usb installer and Zilch! it wouldn't work! BUT. I believe the issue stems from the type of hardware you are utilizing to create the bootable usb stick. So what do you wise people say? Why can't I create a bootable OSX-install-USB like before?Ĭlick to expand.I had the same problem with my MBPro model A1278 not seeing the usb stick when I booted with the alt key option, but switching to a different usb port didn't work for me either. Testing the USB on four different Macs - none of them recognizes the USB as bootable Formatting the USB a thousand times (GUID / OS X - journaled) Tried creating the USB by using Diskmaker X 5.0.1 instead of the terminal command (on three Macs) Tried creating the USB on three different Macs (with Mavericks, Yosemite and El Capitan)
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Redownloading El Capitan from the App Store (if something was wrong with the first image) Can't really see how I can do this procedure wrong.
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Is does mount as it should on my desktop, though, and I'm able to run the installer from the USB. However, the install-USB is not bootable and does not show up i the "Startup disk preference panel". As I've done a thousand times before I created an install-USB by downloading El Capitan from the App Store and compiled it on to the USB-drive by using Apples own terminal command. I have decided to go with a fresh and clean install of OS X 10.11 El Capitan this time.
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