I've been playing with booting CoreOS images via iPXE but not on iron, instead I've been using this http://kimizhang.wordpress.com/2013/08/26/create-pxe-boot-im... technique with a couple OpenStack zones for getting a bare-PXE boot image that makes OpenStack happy. Pro tip: Disable "OpenStack network" DHCP on the subnet you're rolling these instances.
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I just wish there was a bit more people testing CoreOS on bare metal with PXE. There are pretty decent docs on it:
https://coreos.com/docs/running-coreos/bare-metal/booting-wi...
http://coreos.com/blog/boot-on-bare-metal-with-pxe/
But I've not heard a lot from people with clusters of them. Perhaps I'll have to snag a small cluster of lab boxes and give it a go myself!
I've been playing with booting CoreOS images via iPXE but not on iron, instead I've been using this http://kimizhang.wordpress.com/2013/08/26/create-pxe-boot-im... technique with a couple OpenStack zones for getting a bare-PXE boot image that makes OpenStack happy. Pro tip: Disable "OpenStack network" DHCP on the subnet you're rolling these instances.
I'm using CoreOS to pxe an image to provision bare metal as part of Openstack Ironic. Check it out here: http://git.openstack.org/cgit/openstack/ironic-python-agent/...
Some companies out there, doing exactly what you want to see. Lots of experiments they're just not public about it. I'll see what I can do.
I wonder if anyone has had success running it on HP's Microserver series? I have a spare N36L that I might try and run this up on.