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Hi,
Thank you very much for your reply !
But there are still some questions for me. Now I've come to the step where
ironic partitions the disk as you replied.
Then, how does ironic copies an image ? I know the image comes from glance.
But how to know image is really available when reboot?
And, what are the differences between final kernel (ramdisk) and original
kernel (ramdisk) ?

*Best Regards！*


*Chao Yan--------------**My twitter：Andy Yan @yanchao727
<https://twitter.com/yanchao727>*


*My Weibo：http://weibo.com/herewearenow
<http://weibo.com/herewearenow>--------------*


2014-06-04 19:36 GMT+08:00 Dmitry Tantsur <dtantsur at redhat.com>:

> Hi!
>
> Workflow is not entirely documented by now AFAIK. After PXE boots deploy
> kernel and ramdisk, it exposes hard drive via iSCSI and notifies Ironic.
> After that Ironic partitions the disk, copies an image and reboots node
> with final kernel and ramdisk.
>
> On Wed, 2014-06-04 at 19:20 +0800, 严超 wrote:
> > Hi, All:
> >
> >         I searched a lot about how ironic automatically install image
> > on bare metal. But there seems to be no clear workflow out there.
> >
> >         What I know is, in traditional PXE, a bare metal pull image
> > from PXE server using tftp. In tftp root, there is a ks.conf which
> > tells tftp which image to kick start.
> >
> >         But in ironic there is no ks.conf pointed in tftp. How do bare
> > metal know which image to install ? Is there any clear workflow where
> > I can read ?
> >
> >
> >
> >
> > Best Regards！
> > Chao Yan
> > --------------
> > My twitter：Andy Yan @yanchao727
> > My Weibo：http://weibo.com/herewearenow
> > --------------
> >
> > _______________________________________________
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> > OpenStack-dev at lists.openstack.org
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
>
>
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