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How do I boot from a volume?
Why would I want to?
When you boot from a volume it acts as your disk so any changes made to disk are stored in the volume. If you terminate and restart a VM that was booted from a volume, it has the version of the disk that was there when you terminated it. Whereas if you terminate a VM that was started from an image or a snapshot any changes made to the disk are lost and starting a new VM from them uses the old version of the disk.
What do I need to do to secure my instance?
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