How to Mount and Boot from an ISO in Virtualizor

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How to Mount and Boot from an ISO in Virtualizor

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Virtualizor allows you to attach an ISO image to your VPS and boot from it. This is useful for installing a custom operating system, running a live recovery environment, or performing low-level diagnostics. Mounting an ISO is an advanced operation — if you only need to reinstall the operating system with a standard template, use the Reinstall OS feature instead.


What you will need

  • A KVM-based VPS (ISO mounting is not available on OpenVZ or LXC)
  • An ISO image available in the Virtualizor ISO library (managed by the server administrator)
  • Access to VNC to interact with the ISO environment

Step 1 — Browse available ISOs

  1. Log in to the Virtualizor Enduser Panel.
  2. Open the management page for your VPS.
  3. Click the ISO icon in the management toolbar (or navigate to Manage VPS → ISO in the sidebar).
  4. A list of ISOs available on the server will be displayed. The list is maintained by the TPC Hosting server administrator — if you require a specific ISO that is not listed, contact TPC Hosting support and request that it be added.

Step 2 — Mount the ISO

  1. In the ISO list, select the ISO image you want to attach to your VPS.
  2. Click Mount ISO. Virtualizor will attach the ISO to the VPS as a virtual CD-ROM drive.

Step 3 — Boot from the ISO

  1. Return to the VPS management page.
  2. Click Restart (or Stop followed by Start) to reboot the VPS.
  3. On the next boot, the VPS will start from the mounted ISO rather than the installed operating system.

Step 4 — Access the ISO environment via VNC

  1. On the VPS management page, click the VNC icon to open the browser-based VNC console.
  2. You will see the ISO boot screen — interact with it as you would a physical machine booting from a CD or USB drive.
  3. Follow the installer or live environment instructions to complete your task.

Step 5 — Unmount the ISO after use

  1. After the installation or task is complete, return to the ISO management page.
  2. Click Unmount ISO. This removes the virtual CD-ROM from the VPS.
  3. Restart the VPS. It will now boot from the installed operating system on the virtual disk rather than the ISO.

Important: if you do not unmount the ISO, the VPS will attempt to boot from it again on the next restart, which may cause an unintended re-installation loop.


Caution

  • Rebooting the VPS to boot from an ISO will interrupt all running services. Schedule this operation during a maintenance window.
  • If you are installing a new operating system from an ISO, all data on the primary disk will be overwritten. Back up any important data before proceeding.

Troubleshooting

  • ISO option is not visible: ISO mounting is only available for KVM VPS instances. If your VPS uses OpenVZ or LXC, this feature is not available.
  • The ISO is not in the list: the ISO library is managed by TPC Hosting. Contact support to request that a specific ISO be added.
  • VPS boots into the old OS instead of the ISO: confirm the ISO was mounted successfully before restarting. Return to the ISO management page to verify the mount status.

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