http://stackoverflow.com/questions/20560152/what-is-the-vagrant-syntax-for-adding-a-locally-existing-vdi http://stackoverflow.com/questions/26435510/how-to-copy-vagrant-box-to-reuse-again
Consider using command vagrant box repackage
command, this is not tested, but there are links saying it is another way to package your box aside from the vagrant package
command.
Create a metadata.json file inside the Homestead7 dir. (from the second link above, http://stackoverflow.com/a/39822306) This is something equivalent by renaming the folder name in /home/<user>/.vagrant.d/boxes/laravel-VAGRANTSLASH-homestead/
{
"name": "laravel/homestead",