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On 10/25/2017 02:15 PM, Yolanda Robla Mota wrote:
> Answering inline...
> 
> 
>     Note that we only support BFV in the form of booting from a cinder volume
>     officially. We haven't looked into iBFV in depth.
> 
> 
> I have been testing that on the context of booting from SAN. It is at deploy 
> time, in the context of TripleO, in the undercloud. At that point no cinder is 
> there. We have been deploying with some ISCSI targets, and ironic consuming 
> those instead of booting from local hard disk. I guess it is a different context.
> 
> 
> 
>     This has been discussed several times, and every time the idea of making it
>     a generic feature was rejected. There is an option to configure kernel
>     parameters for PXE boot. However, apparently, you cannot add
>     rd.iscsi.firmware=1 if you don't use iSCSI, it will fail to boot (Derek told
>     me that, I did not check). If your deployment only uses iSCSI - you can
>     modify [pxe]pxe_append_params in your ironic.conf to include it.
> 
> 
> No PXE boot possible. As it is in the context of TripleO, we use the 
> boot_option=local. I know that it is possible to customize with pxe boot, but we 
> cannot rely on it, but have the kernel parameter on local boot.

Hmm, are we talking about IPA or user images? IPA always PXE boots, no matter 
what boot_option we use. For user images with boot_option=local our only bet is 
using the ansible deploy interface, I think (please review it!)

> 
> 
> 
>     Well, we could probably do that *for IPA only*. Something like
>     driver_info/deploy_image_append_params. This is less controversial than
>     doing that for user instances, as we fully control the IPA boot. If you want
>     to work on it, let's start with a detailed RFE please.
> 
> 
> IPA boot works fine. Some time ago I added some patches on the ironic-agent 
> element, to force the modprobe of several modules (including ibft, fcoe, etc...) 
> That is because IPA image is not based on dracut, so it doesn't rely on parsing 
> the cmdline from kernel boot and dracut hooks. The problem with kernel 
> parameters is only happening now on the deployment image, and so far, the only 
> working solution i could find, is execute a virt-customize on the image to add 
> those.

So, this is where the confusion probably is: "deployment image" is IPA. And by 
the way the IPA image used in TripleO is based on dracut.

If you're talking about instance or user image, then, as I mention above, the 
only option we have now is the ansible deploy interface.

> 
> 
> 
>         Thanks
> 
>         -- 
> 
>         Yolanda Robla Mota
> 
>         Principal Software Engineer, RHCE
> 
>         Red Hat
> 
>         <https://www.redhat.com>
> 
>         C/Avellana 213
> 
>         Urb Portugal
> 
>         yroblamo at redhat.com <mailto:yroblamo at redhat.com>
>         <mailto:yroblamo at redhat.com <mailto:yroblamo at redhat.com>> M:
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> 
> -- 
> 
> Yolanda Robla Mota
> 
> Principal Software Engineer, RHCE
> 
> Red Hat
> 
> <https://www.redhat.com>
> 
> C/Avellana 213
> 
> Urb Portugal
> 
> yroblamo at redhat.com <mailto:yroblamo at redhat.com> M: +34605641639 
> <http://redhatemailsignature-marketing.itos.redhat.com/>
> 
> <https://red.ht/sig>
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