RFC: Primary architecture promotion requirements
mjg59 at srcf.ucam.org
Tue Mar 20 15:19:35 UTC 2012
This is very much a draft, but I'd like to start a discussion regarding
what we expect from primary architectures. Feedback not only welcome,
but actively desired.
Secondary architectures in Fedora are subject to looser constraints than
primary architectures for two primary reasons:
1) To make it easier to bootstrap an architecture without the overhead
of the primary architecture release engineering process
2) To avoid primary architecture development being held up by poorly
developed or niche architectures
Promoting an architecture to primary architecture status is a
significant responsibility. It implies that the port is sufficiently
mature that little in the way of further architecture-specific changes
or rebuilds will be required, and also that it has enough development
effort to avoid it delaying the development of other primary
architectures. Further, it means that the architecture becomes part of
the overall Fedora brand. Fedora is an integrated Linux distribution
rather than a technology collection, and as such there are various
expectations that the overall Fedora experience will be consistent over
all primary architectures.
In order to ensure that these expectations are met, secondary
architectures must meet various criteria before they can be promoted:
1) There must be adequate representation for the architecture on the
Fedora infrastructure and release engineering teams.
2) All builds must occur on Fedora-maintained build servers.
3) Where technically possible, all supported hardware targets must be
supported via Anaconda. Exceptions are limited to highly resource
constrained devices or hardware which provides no means for simultaneous
support of install and target media.
4) All supported platforms must have kernels built from the Fedora
kernel SRPM and enabled by default in the spec file. Each kernel must be
built in a timely manner for every SRPM upload.
5) Sufficient developer resources must be available to fix any
architecture-specific issues in such a way that they do not delay
overall Fedora development.
6) It must be possible for maintainers of critical-path hardware
dependent packages to have direct access to supported hardware in order
to rectify any release-blocking issues. For example, X maintainers must
have direct access to any hardware with graphics capabilities.
7) The port must not rely on sourceless binaries unless they fall under
the generic firmware exemption. Where source and toolchain are
available, the binaries must be built in the Fedora build
As such, promotion to primary architecture status will require agreement
from the Fedora infrastructure, release engineering, kernel and
installer teams and is subject to overall approval by the Fedora
Matthew Garrett | mjg59 at srcf.ucam.org
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