What do you mean by "linux kernel without the usual userspace tools"? Openstack runs on a complete system with all the tools you want to install, not some bare kernel machine.
"OpenStack is like you think about the linux kernel. Most people want a distro, not raw source to setup their environments"
Since he was comparing the relationship between a hypervisor and Openstack to that between the Linux kernel and the userspace tools, and I was just commenting on that comparison. That is, which I know people that use hypervisors without Openstack (or other virtualization management applications like Cloudstack or vCenter), I don't know anyone that uses the kernel on its own. Sorry, I thought that was clear but I guess it was not.
Since he was comparing the relationship between a hypervisor and Openstack to that between the Linux kernel and the userspace tools, and I was just commenting on that comparison. That is, which I know people that use hypervisors without Openstack (or other virtualization management applications like Cloudstack or vCenter), I don't know anyone that uses the kernel on its own. Sorry, I thought that was clear but I guess it was not.