1、报错详情
安装vagrant，在运行vagrant up时，报错
An error occurred while downloading the remote file. The error message, if any, is reproduced below. Please fix this error and try again. OpenSSL SSL_read: SSL_ERROR_SYSCALL, errno 54
这个错误是因为网络太慢，下载virtualbox.box失败，可以换个网络再试一下。
如果网络实在太慢的话，可以试试下面的方法，我们可以手动下载virtualbox.box
2、手动下载并安装virtualbox.box
（1）下载并移动安装包
点击下载：
https://vagrantcloud.com/laravel/boxes/homestead/versions/7.1.0/providers/virtualbox.box
下载完成后将下载后的安装包重新命名为virtualbox.box
并将文件移动到安装vagrant的文件夹下面
#语句实例：移动到vagrant的文件夹下面，需要将~/rails-va路径换成自己的安装vagrant的文件夹的路径 rm virtualbox.box ~/rails-va
（2）手动导入virtualbox.box
在安装vagrant的文件夹下面（我电脑上面的路径是~/rails-va）继续执行下面语句
vagrant box add ubuntu virtualbox.box
执行成功后，会返回下面的结果
==> box: Box file was not detected as metadata. Adding it directly... ==> box: Adding box 'ubuntu' (v0) for provider: box: Unpacking necessary files from: file:///Users/maoningyi/rails-va/virtualbox.box ==> box: Successfully added box 'ubuntu' (v0) for 'virtualbox'!
（3）检查是否导入成功
vagrant box list
出现下面语句就说明导入成功了
ubuntu (virtualbox, 0)
（4）继续执行vagrant up
~/rails-va$ vagrant up #系统返回的结果 Bringing machine 'default' up with 'virtualbox' provider... ==> default: Box 'virtualbox.box' could not be found. Attempting to find and install... default: Box Provider: virtualbox default: Box Version: >= 0 ==> default: Box file was not detected as metadata. Adding it directly... ==> default: Adding box 'virtualbox.box' (v0) for provider: virtualbox default: Unpacking necessary files from: file:///Users/maoningyi/rails-va/virtualbox.box ==> default: Successfully added box 'virtualbox.box' (v0) for 'virtualbox'! ==> default: Importing base box 'virtualbox.box'... ==> default: Matching MAC address for NAT networking... ==> default: Setting the name of the VM: rails-va_default_1577761656747_39956 Vagrant is currently configured to create VirtualBox synced folders with the `SharedFoldersEnableSymlinksCreate` option enabled. If the Vagrant guest is not trusted, you may want to disable this option. For more information on this option, please refer to the VirtualBox manual: https://www.virtualbox.org/manual/ch04.html#sharedfolders This option can be disabled globally with an environment variable: VAGRANT_DISABLE_VBOXSYMLINKCREATE=1 or on a per folder basis within the Vagrantfile: config.vm.synced_folder '/host/path', '/guest/path', SharedFoldersEnableSymlinksCreate: false ==> default: Vagrant has detected a configuration issue which exposes a ==> default: vulnerability with the installed version of VirtualBox. The ==> default: current guest is configured to use an E1000 NIC type for a ==> default: network adapter which is vulnerable in this version of VirtualBox. ==> default: Ensure the guest is trusted to use this configuration or update ==> default: the NIC type using one of the methods below: ==> default: ==> default: https://www.vagrantup.com/docs/virtualbox/configuration.html#default-nic-type ==> default: https://www.vagrantup.com/docs/virtualbox/networking.html#virtualbox-nic-type ==> default: Clearing any previously set network interfaces... ==> default: Preparing network interfaces based on configuration... default: Adapter 1: nat ==> default: Forwarding ports... default: 22 (guest) => 2222 (host) (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: vagrant default: SSH auth method: private key default: Warning: Connection reset. Retrying... default: default: Vagrant insecure key detected. Vagrant will automatically replace default: this with a newly generated keypair for better security. default: default: Inserting generated public key within guest... default: Removing insecure key from the guest if it's present... default: Key inserted! Disconnecting and reconnecting using new SSH key... ==> default: Machine booted and ready! ==> default: Checking for guest additions in VM... ==> default: Mounting shared folders… default: /vagrant => /Users/maoningyi/rails-va
再执行vagrant ssh就可以成功登陆到Ubuntu系统
~/rails-va$ vagrant ssh #系统返回的结果 Welcome to Ubuntu 18.04.1 LTS (GNU/Linux 4.15.0-45-generic x86_64) _ _ _ | | | | | | | |__ ___ _ __ ___ ___ ___| |_ ___ __ _ __| | | '_ \ / _ \| '_ ` _ \ / _ \/ __| __/ _ \/ _` |/ _` | | | | | (_) | | | | | | __/\__ \ || __/ (_| | (_| | |_| |_|\___/|_| |_| |_|\___||___/\__\___|\__,_|\__,_| * Homestead 8.0.0 released! PHP 7.3 is now the default! * Settler v7.0.0 released! Make sure you update * Need PHP 5.6 or 7.0? Homestead 7.x Settler 6.4.0 0 packages can be updated. 0 updates are security updates. vagrant@vagrant:~$
