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1. #USING DD TO COPY ISO TO USB MAC OSX HOW TO#
2. #USING DD TO COPY ISO TO USB MAC OSX MAC OS X#
3. #USING DD TO COPY ISO TO USB MAC OSX INSTALL#

I hope I can show you some examples of how to configure the EFI using Open core. iso image file, first unmounting the disc: sudo umount /dev/dvd-device dd if/dev/dvd-device ofdvd.iso bs2048 convsync,notrunc dvd-device will typically be dvd for a dvd disc or cdrom for a cdrom disc. If you’re using an Apple Silicon machine, you’ll need to insert the USB drive, shut the Mac down, then reboot and hold the Power key until you come to the Startup Manager. You could also use the Startup Manager to select your boot drive when you start macOS. Wait until the process is completed.Īfter this process completes, you are ready to configure the EFI folder. Clone the drive hda onto an image file: dd if/dev/hda of/image.img. Your Mac will reboot from the USB instead of your default startup disk. There is no confirmation, therefore it is critical you use the proper drive identifier and proper syntax to avoid erasing the wrong thing.

#USING DD TO COPY ISO TO USB MAC OSX MAC OS X#

Press Enter and then it will start copying files to our USB drive. How to Copy an ISO File to a Target Drive Using ‘dd’ in Mac OS X This will erase the target volume, replacing whatever data is on the destination drive with the ISO contents. Next, we need to provide the path for the macOS recovery file we downloaded on step 1.Ĭlick Copy path as shown above and then paste in the command line Now confirm it by typing Y and press enter

#USING DD TO COPY ISO TO USB MAC OSX INSTALL#

This will also install OpenCore on the USB drive. Don’t forget to change the number based on your USB drive number shown on the makeinstall window. To get the correct installer, download from a Mac thats using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. If the installer opens after downloading, quit it without continuing installation. In this case, my Sony USB drive is shown with a number 3. These will be downloaded to your Applications folder as an app named Install macOS version name. You can also convert the image file from an ISO into an apple image DMG format, then do it from the GUI. In the following window, make sure you see your USB drive. The command can be improved, try using the raw block device and setting a decent block size: sudo dd ifenwindows8x86dvd915417.iso of/dev/rdisk1s1 bs1m. Now, right-click the file “MakeInstall.bat” and choose Run as Administrator. And then open the gibMacOS folder once again. Plug your USB drive to one of your USB ports. OK so the second step of this project is completed. This will download the macOS Catalina 10.15.4 to the gibMacOS folder.Īfter the download process is completed, you will see new folder called macOS Download under the gibMacOS folder To proceed, simply type 5 and then press Enter. Now we are going to choose the macOS Catalina Full Install from the list. Type R and then press Enter to enable the Recovery option only.