My mid-2015 MacBook Pro crashed. I replaced the SSD with an Aura Pro X2, but I was not able to install macOS Sierra to it, but I was able to install macOS Sierra to a 16GB USB flash drive.
But now what do I do with that flash drive? How do I get the OS installed on my hard drive?
Would I have to go back to Terminal and run the command that Allan gives in this post? Can Recovery Mode install OS X onto a blank SSD?