The following SSH command responded with a non-zero exit status.
Vagrant assumes that this means the command failed!
mount -t vboxsf -o uid=`id -u vagrant`,gid=`id -g vagrant` /vagrant /vagrant
This is because the kernel is rebuilt but not the guest additions. This is fixed with:
This is because the kernel is rebuilt but not the guest additions. This is fixed with:
sudo /etc/init.d/vboxadd setup
Find a way to detect and do this automatically