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
Ah, Apple makes it crazy hard to post a query where you want it, yours was posted in Mojave forum.
Should not be a problem, put the Installer on , boot with Option key held down to choose the Installer...
How to create a bootable installer for macOS - Apple Support
https://itunes.apple.com/us/app/macos-sierra/id1127487414?ls=1&mt=12
Fix for 10.12 createinstallmedia "not a v… - Apple Community
Fix for 10.12 createinstallmedia "not a v… - Apple Community
But a 2209 iMac can't run Mojave, 10.13.6 is max.
Ok BDAqua-Level 10 ...same question but Sierra instead of Mojave.
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?
