This guide covers installing one of our prepared operating systems on a VPS ON virtual machine. If you want to attach your own ISO file and install from it, follow the guide VPS ON – Connecting Your Own ISO and Installing an OS.
This guide applies to VPS ON. For VPS SSD, follow the guide VPS SSD – Installing a Prepared OS.
In this article you will learn:
- How to remove an existing OS
- How to install a new OS
- How to set the root password in the ON Sunstone interface
- Common Problems
- Frequently Asked Questions
Removing an Existing OS
Before installing a new OS, first remove the original one. If you are installing an OS on a new VPS ON virtual machine, continue to the chapter Attaching a New OS.
To remove an existing operating system, follow these steps:
- Log in to the administration Open Nebula Sunstone ⧉.
- Go to Instances (Instances) VMs (Virtual Machines).
- Select the virtual machine whose OS you want to remove.
- Power off the machine using the Poweroff hard (Power off immediately).
- Under the control buttons, select Storage (Storage).
- For the selected OS, in the Actions (Actions) column, click the cross icon .
- Confirm the action in the pop-up window.
Attaching a New OS
If you want to attach your own ISO file and install an OS from it, follow the guide VPS ON – Connecting Your Own ISO and Installing an OS.
To add an operating system from our offering, follow these steps:
- Log in to the administration Open Nebula Sunstone ⧉.
- Go to Instances (Instances) VMs (Virtual Machines).
- Select the virtual machine to which you want to attach the OS.
- Make sure the virtual machine has no OS and that it is in the state POWEROFF.
- Under the control buttons, select Storage (Storage).
- Click the button Attach disk (Attach disk).
- Select the OS you want to install from the list.
- Select Advanced options (Advanced options).
- Set the value Size on instantiate (Size on instantiate) to the current size of your VPS ON.
- Confirm your choice by clicking the button Attach (Attach).
Setting the Root Password in ON Sunstone
If you need to create or change the root user password in an operating system attached according to this guide, follow these steps:
- Log in to the administration Open Nebula Sunstone ⧉.
- Go to Instances (Instances) VMs (Virtual Machines).
- Select the virtual machine where you want to change the password.
- In the Info tab, scroll through the content until you find, in the Attributes (Attributes) table, the item PASSWORD.
- Click the pencil icon .
- Enter the new password and confirm it by pressing Enter.
- Power off the virtual machine using the Power Off .
- Power on the virtual machine using Resume .
Common Problems
Common problems with installing a prepared OS on VPS ON include:
- The selected OS is not in the list of images
- A virtual machine stuck during restart or when detaching/attaching disks
- The root user password is unavailable or does not work
OS Is Not in the List
Problem: The operating system I need to run on my server is not in the list of images.
Cause: We provide only selected versions of the Linux operating system. We keep adding to the list.
Solution: Install the OS from your own source according to the guide VPS ON – Connecting Your Own ISO and Installing an OS.
Stuck VM
Problem: The VM got stuck while handling disks or during power off/on and shows an unusual state.
Cause: In some cases, powering on or off may take longer than usual (on the order of minutes). At other times, however, it may be a system error that has to be resolved on our side.
Solution: Wait a few minutes. If the problem persists for tens of minutes, or the VM gets into an unusual state that cannot be resolved by a restart, contact Support ⧉. Include the number or name of the service and the action that immediately preceded the freeze (e.g. attaching a new disk).
Root Password Not Working
Problem: The root password that came in the service setup email does not work, or no password arrived at all.
Solution: Follow the guide in the chapter Setting the Root Password in ON Sunstone. If the PASSWORD parameter is not in the table, add it.
Frequently Asked Questions
Why is Windows not in the list? How do I install it?
We do not offer Windows operating systems on servers. If you want to run Windows, obtain your own license and install the system according to the guide VPS ON – Installing Windows with VirtIO.