I need to replace the internal drive in an iMac (I've done this before - on this iMac - without any troubles) but this time (in a dry run) I can't get the iMac to boot from an external recovery ...
You'll need a Mac, an 8GB USB drive or SD card, and a little patience. So you can't simply 'burn' the ESD DMG inside the installer to USB anymore? I've done that on ...
How to create a bootable USB installer for macOS Sierra Your email has been sent Follow these steps to take to create a bootable USB installer drive for macOS Sierra ...
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