Sync data on external drive to iCloud

Solution 1:

You can move the Documents folder to the external drive and create a symbolic link to Documents folder present on the external drive in your Home directory.

Follow the steps mentioned below:

1. Move the contents of the internal Documents directory to external Documents directory.

2. Rename the internal Documents directory. (You'll need to do it via Terminal by executing mv ~/Documents ~/Documents-old as Finder won't allow renaming.)

3. Open Terminal and create a symbolic link to the external Documents directory in your Home directory.

   ln -s /Volumes/<EXTERNAL_DRIVE>/Documents ~/Documents

Now verify that the iCloud sync is working all-right. The old internal Documents directory (which was renamed in step 2) can be safely deleted.