How does openstack qcow2 image differ from ISO
Hi,
In a normal machine we use the iso and install the OS. During the installation time we will specify the HDD partition to be used .
But when this comes to cloud aws/openstack we just pick up the image from glance and choose the flavor the VM gets sniped up and there is no instillation time required here .
Please explain me the full process how this actually happens in-depth. (Or provide me few links to understand this concept)
Read about kvm virtualization the types of filesystem it supports and how to create a qcow2 disk, the concept would become clear.