我以管理员身份登录，但是当我尝试创建共享文件夹时收到此消息：
'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error Permission denied
You do not have permission to create a usershare. Ask your administrator to grant you permissions to create a share.
我如何授予自己完全权限？