はじめに

centos6上にvirtualboxでcentos8環境を作りたい。
正攻法でうまく行かなかったので、vagrantのちからを借りようとしたら
うまくできなかったので、邪道な方法で解決した。

vagrantをインストール (curlを添えて)
boxを追加 (curlを添えて)
vagrant up

$ curl -ksSLO https://releases.hashicorp.com/vagrant/2.2.14/

# rpm -Uvh ./vagrant_2.2.14_x86_64.rpm


$ vagrant box add https://app.vagrantup.com/centos/boxes/8

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_connect: SSL_ERROR_SYSCALL in connection to proxy.co.jp:8080

$ vagrant plugin install vagrant-proxyconf

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_connect: SSL_ERROR_SYSCALL in connection to proxy.co.jp:8080

$ curl -ksSLO  https://app.vagrantup.com/centos/boxes/8/versions/2011.0/providers/virtualbox.box

$ vagrant box add centos8 ./virtualbox.box

$ vagrant init

$ vi Vagrantfile

$ vagrant up