Vagrant up hangs on "Setting up grub-pc"

[SerkanYildiz]

When I execute the vagrant up command, the process hangs on:

==> default: Generation complete.
==> default: Setting up libpam-systemd:amd64 (229-4ubuntu17) ...
==> default: Setting up udev (229-4ubuntu17) ...
==> default: addgroup:
==> default: The group `input' already exists as a system group. Exiting.
==> default: update-initramfs: deferring update (trigger activated)
==> default: Setting up libfreetype6:amd64 (2.6.1-0.1ubuntu2.3) ...
==> default: Setting up grub-common (2.02~beta2-36ubuntu3.11) ...
==> default: update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
==> default: Setting up grub2-common (2.02~beta2-36ubuntu3.11) ...
==> default: Setting up grub-pc-bin (2.02~beta2-36ubuntu3.11) ...
==> default: Setting up grub-pc (2.02~beta2-36ubuntu3.11) ...
==> default:

My Vagrantfile looks like:

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|
    config.vm.box = "bento/ubuntu-16.04"
    config.vm.hostname = "TestBox"

    config.vm.network "forwarded_port", guest: 80, host: 8080

    config.vm.network "private_network", ip: "192.168.33.10"

        config.vm.provider "virtualbox" do |v|
             v.memory = 2048
             v.cpus = 2
        end

    config.vm.synced_folder "public", "/var/www", :nfs => { :mount_options => ["dmode=777","fmode=666"] }
    config.ssh.insert_key = false
    config.vm.provision "shell", path: "install.sh", privileged: false
end

[Imperio8]

same here

[SerkanYildiz]

Solved the problem by running the failing command with by logging in into the machine.

[Imperio8]

@SerkanYildiz I didn't understand that, would you mind explaining? (I'm noob :P )

[whatnickcodes]

Get rid of:

sudo apt-get -y upgrade

[PolarGoose]

Get rid of:

sudo apt-get -y upgrade

just add the following before running the upgrade command and it will work:
export DEBIAN_FRONTEND=noninteractive