流浪者版本 1.6.3
虚拟盒子 4.3.12
VBoxGuestAdditions-4.3.2
主机操作系统 -> Windows 8
来宾操作系统 -> CentOS 6.5
当这是 Vagrantfile 的内容时，Vagrant synced_folder 工作正常
config.vm.synced_folder ".", "/vagrant", disabled: true
config.vm.synced_folder ".", "/var/www"
但我无法更改 synced_folder (/var/www) 中文件或目录的权限。 https://github.com/mitchellh/vagrant/issues/897
为了解决这个问题，我在 Vagrantfile https://serverfault.com/questions/398414/vagrant-set-default-share-permissions中进行了以下更改
config.vm.synced_folder ".", "/vagrant", disabled: true
config.vm.synced_folder ".", "/var/www",
:owner=> 'shiva',
:group=> 'shiva',
:mount_options=> ['dmode=>777', 'fmode=>666']
（其中'shiva'是我创建的用户，我删除了默认用户'vagrant'）
现在的问题是当我尝试做 vagrant up 时，它显示了这个错误
==> default: Clearing any previously set forwarded ports...
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
default: Adapter 1: nat
==> default: Forwarding ports...
default: 22 => 2222 (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH address: 127.0.0.1:2222
default: SSH username: shiva
default: SSH auth method: password
default: Warning: Connection timeout. Retrying...
default: Warning: Connection timeout. Retrying...
default: Warning: Connection timeout. Retrying...
default: Warning: Connection timeout. Retrying...
default: Warning: Remote connection disconnect. Retrying...
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
==> default: Mounting shared folders...
default: /var/www => C:/Users/Shiva/CentOSDevEnv_v1_1
Failed to mount folders in Linux guest. This is usually because
the "vboxsf" file system is not available. Please verify that
the guest additions are properly installed in the guest and
can work properly. The command attempted was:
mount -t vboxsf -o uid=`id -u shiva`,gid=`getent group shiva | cut -d: -
f3`,dmode=>777,fmode=>666 var_www /var/www
mount -t vboxsf -o uid=`id -u shiva`,gid=`id -g shiva`,dmode=>777,fmode=
>666 var_www /var/www
我已经通过这个链接 https://github.com/mitchellh/vagrant/issues/3341
我不知道 ruby 语法（Vagrantfile 语法）。我真的被困在这里，请帮忙。