I want to install Mojave on an external hard drive and use it as the startup disk for a 2009 iMac with a bad internal drive. How do I install an OS on the external drive so I can use it as the startup drive?
I want to install Mojave on an external hard drive and use it as the startup disk for a 2009 iMac with a bad internal drive. How do I install an OS on the external drive so I can use it as the startup drive?
iMac