Originally Posted By: plantsower
8. Select Mac HD from Start up Disk and reboot. (Restart?). After I run Sierra Clone for several hours (or a day) and then remove Ext. HD, first? I don't normally have to pick a startup disk after I remove my Ext. Drive. But, maybe this is a special situation?

You can't remove your external before you reboot/restart, because it's the volume into which you're booted.

You've got to wait until you restart into your internal SSD, and the best way to get there is by setting it as your startup disc in System Prefs > Startup Disc.

The new Great Equalizer is the SEND button.

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