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# Obtaining NixOS {#sec-obtaining}
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NixOS ISO images can be downloaded from the [NixOS download
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page](https://nixos.org/download.html#nixos-iso). Follow the instructions in
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[](#sec-booting-from-usb) to create a bootable USB flash drive.
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If you have a very old system that can't boot from USB, you can burn the image
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to an empty CD. NixOS might not work very well on such systems.
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As an alternative to installing NixOS yourself, you can get a running
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NixOS system through several other means:
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- Using virtual appliances in Open Virtualization Format (OVF) that
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can be imported into VirtualBox. These are available from the [NixOS
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download page](https://nixos.org/download.html#nixos-virtualbox).
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- Using AMIs for Amazon's EC2. To find one for your region, please refer
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to the [download page](https://nixos.org/download.html#nixos-amazon).
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- Using NixOps, the NixOS-based cloud deployment tool, which allows
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you to provision VirtualBox and EC2 NixOS instances from declarative
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specifications. Check out the [NixOps
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homepage](https://nixos.org/nixops) for details.
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