[OpenStack-Infra] Adding ARM64 cloud to infra

Jeremy Stanley fungi at yuggoth.org
Fri Jan 12 18:01:35 UTC 2018


On 2018-01-12 17:54:20 +0100 (+0100), Marcin Juszkiewicz wrote:
[...]
> UEFI expects GPT and DIB is completely not prepared for it. I made
> block-layout-arm64.yaml file and got it used just to see "sorry,
> mbr expected" message.

I concur. It looks like the DIB team would welcome work toward GPT
support based on the label entry at
https://docs.openstack.org/diskimage-builder/latest/user_guide/building_an_image.html#module-partitioning
and I find https://bugzilla.redhat.com/show_bug.cgi?id=1488557
suggesting there's probably also interest within Red Hat for it as
well.

> You have whole Python class to create MBR bit by bit when few
> calls to 'sfdisk/gdisk' shell commands do the same.

Well, the comments at
http://git.openstack.org/cgit/openstack/diskimage-builder/tree/diskimage_builder/block_device/level1/mbr.py?id=5d5fa06#n28
make some attempt at explaining why it doesn't just do that instead
(at least as of ~7 months ago?). Per the subsequent discussion in
#openstack-dib I don't know whether there is also work underway to
solve the identified deficiencies in sfdisk and gparted but those
more directly involved in DIB development may have answers when
they're around (which they may not be at this point in the weekend).
-- 
Jeremy Stanley
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