EF7 RC2 Code First Create Database

In a regular command prompt with the new dotnet tooling installed from RC2, you should be able to do the following within your project's directory:

dotnet ef migrations add [name]

As a quick note, you may want to explore the new commands to see what's all in each item. Such as dotnet vs. dotnet ef(https://blogs.msdn.microsoft.com/dotnet/2016/05/16/announcing-net-core-rc2/)

You may need to ensure Powershell 5 is installed to get this to work within the Package Manager Console:

https://docs.efproject.net/en/latest/miscellaneous/rc1-rc2-upgrade.html#package-manager-commands-require-powershell-5

You also need to add this to your project.json file and "Microsoft.EntityFrameworkCore.Tools" : "1.0.0-preview1-final" to your dependencies.

"tools": {
  "Microsoft.EntityFrameworkCore.Tools": {
    "version": "1.0.0-preview1-final",
    "imports": [
      "portable-net45+win8+dnxcore50",
      "portable-net45+win8"
    ]
  }
}