大佬你这个box的root账户密码是多少啊？

[yxy-theone]

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 additions are properly installed in the
guest. This is not a bug in Vagrant and is usually caused by a faulty
Vagrant box. For context, the command attempted was:

mount -t vboxsf -o uid=1000,gid=1000 vagrant /vagrant

The error output from the command was:

我vagrant up 的时候出现了这个错误。。。

[longshuang]

不记得了，你看下慕课网视频，里面有说的...