Disk Resize

The main purpose of this article is documenting how to face a problem with the machine storage in vagrant, and also we will see briefly how to install it.

Table of Contents

• Disk Resize
  • Basic information
  • Tested on (Requirements)
  • Disk Resize Example in Vagrant
    • References

Basic information

• Official documentation: https://www.vagrantup.com/

Tested on (Requirements)

• Base OS: Fedora 31
• OS for the virtual machine: CentOS 8

Disk Resize Example in Vagrant

1. Create a directory where you will work with vagrant and enter into it.

   $ mkdir Desktop/vagrant
   $ cd Desktop/vagrant
   

2. Initialize the directory with Vagrant, it will generate a new file called Vagrantfile, it will be the base for vagrant.

   $ vagrant init
   

3. Then download the plugin that will help for changing the size of our virtual machine

   $ vagrant plugin install vagrant-disksize
   

4. Enter to the file and edit it with the options you want to your Vagrant machine such as hostname, network interfaces, bootstrap script, vagrant box, etc. (You can read more about boxes at [1]). For example:

   BOX_IMAGE = "bento/centos-8.1"
   NODE_COUNT = 2
   
   Vagrant.configure("2") do |config|
     config.vm.box = BOX_IMAGE
     config.disksize.size = '50GB' #the plugin we've previously installed
     config.vm.define "controller" do |ctrlr|
       ctrlr.vm.hostname = "ctrlr.test.lan"
       ctrlr.vm.network "private_network", ip: "192.168.50.2"
       ctrlr.vm.provider "virtualbox" do |v|
         v.name = "Controller"
       end
     end
   end
   

5. In the same folder where the Vagrant file is located run the following commands:

   $ vagrant up
   

6. Go to the new machine using ssh.

   $ vagrant ssh
   

7. Looking at the vm’s space we find out the following:

   

8. Then we try to expand the space through the commands:

   $ sudo cfdisk #change the space, and write to the disk
   

   • It should look like this:
   
   • Here we have to click on the resize option and it should look like the following:
   
   • After that it will ask for verification, just type “yes” and then click on write

9. Then enter and exit, after that process run the following commands:

   $ sudo xfs_growfs -d / #for making the changes
   $ df -h #for checking if it worked
   

References

[1]	Vagrant documentation. Retrieved from https://www.vagrantup.com/intro/getting-started/boxes.html

Author:Manuela Herrera-López <mherreral@eafit.edu.co>