Vagrant was unable to mount VirtualBox shared folders. This is usually because the filesystem "vboxsf" is not available. This filesystem is made available via the VirtualBox Guest Additions and kernel module. Please verify that these guest addit
转自[https://blog.csdn.net/u011486871/article/details/79443375] [有小修改] 错误提示:Vagrant was unable to mount VirtualBox shared folders. This is usuallybecause the filesystem “vboxsf” is not available. This filesystem ismade available via the VirtualBox Gues