Snapshot is a feature to save the current state of a virtual machine so that you can revert back to it if something goes wrong in future.įor example, you have done some important work on your OS and you created a snapshot of it, then after a few days something went wrong and your OS crashed. They can go back in time because of the snapshot. Well, I say virtual machines are luckier than humans. To explain snapshot, let me ask you this – Have you ever looked at your old photo from your childhood and remembered how good life was? Have you ever wished to go back and live the good-old-days once again?īut, you know going back in time is not possible, right? (at least not when I am writing this post) How to Install Linux Mint 20 – Ulyana? (Beginners Guide) What is a Snapshot? And Why do you need it? You can install any OS in VirtualBox, if you haven’t used VirtualBox before, then check out the below links, where I have installed various OS on Virtualbox. Virtual Machine (VM) or Guest OS: An operating system installed in the hypervisor (like VirtualBox, VMware, KVM etc.). I don’t want to go deep into virtualization and hypervisors in this post. In our case, the hypervisor is VirtualBox. The utility which enables us to achieve that is called a hypervisor. The operating systems running inside a virtual environment will feel like its running on its own dedicated system. It enables you to install multiple OS on one system. Virtualization: In simple words, it is a process to create a virtual instance of a computer system from physical hardware. So, let’s first understand what is a snapshot and why do we need it? Basic Terminologies in Virtualizationįirst, let’s get some basic terminologies sorted out. Snapshot is a very powerful feature in the world of virtualization. In this tutorial, I will show you how to create, restore and delete VirtualBox snapshot.
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