Vagrant ssh prompts for password

By default, Vagrant’s user/password is vagrant/vagrant. This is now true with the box ubuntu/xenial64, whose default user is ubuntu. This is not an issue if you download the box from the public Vagrant server, you will run into issues if you try to add a packaged box based on ubuntu/xenial64.

vagrant package outputs package.box.

Now add it:

vagrant box add exp1 package.box

In Vagrantfile, use exp1 as the base box of the VM:  

config.vm.box ="exp1"

vagrant up fails with:

    default: SSH username: vagrant

    default: SSH auth method: private key

    default: Warning: Connection reset. Retrying...

    default: Warning: Connection aborted. Retrying...

    default: Warning: Connection reset. Retrying...

    default: Warning: Connection aborted. Retrying...

    default: Warning: Remote connection disconnect. Retrying...

    default: Warning: Connection aborted. Retrying...

    default: Warning: Connection reset. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

    default: Warning: Authentication failure. Retrying...

Timed out while waiting for the machine to boot. This means that

Vagrant was unable to communicate with the guest machine within

the configured ("config.vm.boot_timeout" value) time period.

This is because vagrant uses user vagrant, while ubuntu/xenial64 uses user ubuntu.  ubuntu/xenial64 user/password can be found in file C:\Users\admin\.vagrant.d\boxes\ubuntu-VAGRANTSLASH-xenial64\20170523.1.0\virtualbox\Vagrantfile:

  config.ssh.username = "ubuntu"

  config.ssh.password = "5605ab75c7b6cc6baa497b18"

Add these lines to Vagrantfile, vagrant up now succeeds.

This is just the first hurdle, vagrant ssh now runs into an issue.

$ vagrant ssh

==> default: The machine you're attempting to SSH into is configured to use

==> default: password-based authentication. Vagrant can't script entering the

==> default: password for you. If you're prompted for a password, please enter

==> default: the same password you have configured in the Vagrantfile.

vagrant ssh-config shows something weird, it doesn’t output IdentityFile, which normally should be like:

IdentityFile C:/devops/exp2/.vagrant/machines/default/virtualbox/private_key

$ vagrant ssh-config

  Host default

  HostName 127.0.0.1

  User ubuntu

  Port 2201

  UserKnownHostsFile /dev/null

  StrictHostKeyChecking no

  PasswordAuthentication no

  IdentitiesOnly yes

  LogLevel FATAL

The problem is in file C:\Users\admin\.vagrant.d\boxes\exp1\0\virtualbox\Vagrantfile:

Vagrant.configure("2") do |config|

config.ssh.private_key_path = File.expand_path("../vagrant_private_key", __FILE__)

end

Comment out config.ssh.private_key_path line, now vagrant ssh works.