Create a High Sierra Bootable USB Install Disk w/ Mojave
I am trying to do a clean install of High Sierra on my MacBook Air (which has crashed) by creating a Bootable Install Disk with my iMac which is running Mojave V 10.14.5
High Sierra is that latest version that is compatible the the model of MacBook Air that I own.
I have successfully downloaded the full (5.23GB) High Sierra Install File using my iMac, and I have followed the instructions provided by Apple Support at https://support.apple.com/en-us/HT201372
I am not sure I am using the proper commands in Terminal when copying the High Sierra installer to the USB drive. The instructions vary, in the Apple Support Guide, depending upon which OS is being copied.
In my case, I am copying the High Sierra Installer to a USB Drive, using Mojave, in order to install High Sierra on the MacBook. I am using the command:
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume (where MyVolume is the name of the formatted USB drive)
Upon trying to install High Sierra with the created Bootable Disk, I am getting an error stating the install files are damaged or corrupt.
Am I using the correct Terminal commands to make this Bootable Install Disk?
Thanks for any help!
G
MacBook Air