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Bug#981582: release-notes: bullseye to be the last release to support non-merged /usr layout



Package: release-notes
X-Debbugs-Cc: debian-ctte@lists.debian.org

> Date: Tue, 29 Dec 2020 14:16:58 +0100
> From: Ansgar <ansgar@debian.org>
> To: submit@bugs.debian.org
> Subject: move to merged-usr-only?
> User-Agent: Evolution 3.38.1-2 
> 
> Package: tech-ctte
> X-Debbugs-Cc: debian-devel@lists.debian.org
> 
> Hi,
> 
> as suggested in [1], I would like to see Debian to move to support
> only the merged-usr filesystem layout.  This would simplfy things for
> the future and also address the problem with installing files under
> aliased trees that dpkg has to do for both variants to be supported.
> 
> merged-usr has been the default for new installations since the last
> release and (as far as I am aware) no world-breaking bugs have
> happened since; some environments such as buildd chroots still do not
> use merged-usr.
> 
> I would like to ask the technical committee to decide whether we want
> to move to merged-usr-only.  It seems to be a case of overlapping
> jurisdiction (6.1.2 in the constitution).
> 
> I'm not asking the committee to decide on a concrete technical
> implementation for this.  Obviously we would need to also implement a
> migration path for legacy installations for a move to merged-usr-only
> to be implemented.  This also isn't relevant for Debian 11 (bullseye),
> but I would like to have enough time in the Debian 12 (bookworm)
> cycle.
> 
> Ansgar
> 
> [1]: https://lists.debian.org/debian-devel/2020/11/#00232
>      continued in December: https://lists.debian.org/debian-devel/2020/12/#00386

> Date: Mon, 01 Feb 2021 10:13:11 -0700
> From: Sean Whitton <spwhitton@spwhitton.name>
> To: 978636-done@bugs.debian.org
> Subject: Re: Bug#978636: move to merged-usr-only?
> 
> Hello,
> 
> On Mon 25 Jan 2021 at 11:45AM -07, Sean Whitton wrote:
> 
> > I call for votes on the following ballot to resolve #978636.  The voting
> > period starts immediately and lasts for up to one week, or until the
> > outcome is no longer in doubt (§6.3.1).
> 
> The vote has concluded.
> 
> Marga, David, Niko, Gunnar, Simon, Elana and myself all voted: YFN.
> 
> Therefore:
> 
>     The Technical Committee resolves that Debian 'bookworm' should
>     support only the merged-usr root filesystem layout, dropping support
>     for the non-merged-usr layout.
> 
>     Until after the release of 'bullseye', any implementation of this
>     resolution must be done in the 'experimental' distribution, or
>     otherwise kept out of the critical paths for the release of
>     'bullseye'.
> 
> -- 
> Sean Whitton

This should probably be documented in the Release Notes for bullseye (as 
the last release to support the non-merged /usr layout).

Kind regards,
Andrei
-- 
http://wiki.debian.org/FAQsFromDebianUser

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