This tutorial deals with installing one of our prepared OS on a VPS ON virtual machine. To mount a custom ISO file and install from it, follow the instructions in the VPS ON - Mounting a custom ISO and installing the OS.
The instructions are valid for VPS ON. For VPS SSD, follow the instructions for VPS SSD - Installing the Ready OS.
In this article you will read:
- How to remove an existing OS
- How to install a new OS
- How to set a 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 OS. If you are installing the OS on a new VPS ON virtual machine, continue to the section Connecting the New OS.
To remove an existing operating system, follow these steps:
- Log in to the Open Nebula Sunstone administration ⧉.
- Go to Instances(Instance) VMs(Virt. machines).
- Select the virtual machine whose OS you want to remove.
- Switch off the machine using the Poweroff hard button.
- Under the control buttons, select Storage.
- For the selected OS, click the cross icon in the Actions column.
- Confirm the action in the pop-up window.
Connecting a new OS
To mount a custom ISO file and install the OS from it, follow the instructions in VPS ON - Mounting a custom ISO and installing the OS.
Follow these steps to add an operating system from our menu:
- Log in to the Open Nebula Sunstone administration ⧉.
- Go to Instances(Instance) VMs(Virt. machines).
- Select the virtual machine where you want to mount the OS.
- Make sure that there is no OS on the virtual machine and that the machine is in the POWEROFF state.
- Under the control buttons, select Storage.
- Click Attach disk.
- Select the OS you want to install from the list.
- Select Advanced options.>
- Set Size oninstantiate to the current VPS ON size.
- Confirm your selection by clicking Attach.
Setting the root password in ON Sunstone
If you need to create or change the root password on an operating system connected to this guide, follow these steps:
- Log in to the Open Nebula Sunstone administration .
- Go to Instances(Instance) VMs(Virt. machines).
- Select the virtual machine where you want to change the password.
- On the Info tab, scroll through the contents until you find the PASSWORD entry in the Attributes table.
- Click on the pencil icon .
- Enter the new password and confirm with Enter.
- Power off the virtual machine via the Power Off button .
- Power on the virtual machine via Resume .
Common problems
Common problems with installing a prepared OS on a VPS ON include:
- The selected OS is not in the panel menu
- Stuck virtual machine on reboot or disconnecting/connecting disks
- Unavailable or broken root password
OS not on offer
Problem: The operating system I need to run on my server is not in the image menu.
Cause: we only provide selected versions of the Linux operating system. We are continuously adding to the list.
Solution: Install the OS from your own source according to the VPS ON instructions - Connecting your own ISO and installing the OS.
Stuck VMs
Problem: When manipulating disks or powering off/on, the VM is stuck and shows an unusual state.
Cause: in some cases, it may take longer than usual (on the order of minutes) to switch on or off. Other times, however, it may be a system error that needs to be addressed from our end.
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 restarting, contact support. Provide the service number or name and the activity that immediately preceded the freeze (e.g., mounting a new disk).
Broken root password
Problem: The root password that came in the service setup email doesn't work, or none was received.
Solution: Follow the instructions 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 isn't it on the Windows menu? How do I install it?
We do not offer Windows operating systems for servers. If you want to run the system with Windows, get your own license and install the system according to the VPS ON - Installing Windows with VirtIO instructions.