Error when copying Home Directory

I am trying to move my home directory to a secondary drive, but I am running into to two issues. When I try to do it via Finder I get the error - The operation can’t be completed because “<my account name>” needs to be downloaded. And when I try to do it via the terminal in recovery mode (after mounting the Data directory), It seems to copy a set of directories within ~/Library/Daemon Containers/. These appear to be snapshots of some sort, which when cp runs, end up taking up the entire drive of the target drive, which is 4 times larger than my base volume.

Two questions:

  1. Why I am getting the message via finder (and how do I get around it?
  2. What is the correct process for moving the home directory to a second drive?

Thanks!

Error when copying Home Directory
 
 
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