请问一下我这个vagrant启动的时候出现这个问题是什么意思啊

$ cd ~/Homestead && vagrant up
Bringing machine 'homestead-7' up with 'virtualbox' provider...
==> homestead-7: Checking if box 'laravel/homestead' is up to date...
==> homestead-7: Machine already provisioned. Run

vagrant provision

or use the

--provision

==> homestead-7: flag to force provisioning. Provisioners marked to run always will still run.

这个是不是要更新virtualbox的意思啊