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Bug#994388: dpkg currently warning about merged-usr systems

On Thu, 2022-03-24 at 14:49 +0100, Helmut Grohne wrote:
> On Thu, Mar 24, 2022 at 09:12:14AM +0100, Ansgar wrote:
> > Maybe it should be changed into a warning that non-merged-/usr
> > systems
> > will not be supported in the future.  The `dpkg-fsys-usrunmess`
> > program
> > should probably also include a warning that it will convert the
> > system
> > into a state no longer supported by Debian in the future.
> What is supported is a bit subjective I fear.

No, Helmut, it is not. We had that discussion often enough and in this
bug report you will find the following:

| There are currently Debian 11 installations with both the merged-/usr
| and non-merged-/usr filesystem layouts. All of these installations
| should successfully upgrade via normal upgrade paths to a merged-/usr
| Debian 12.  Only after the release of Debian 12 can packages assume
| that all installations will be merged-/usr.

I'm not motivated to pretend the last years did not happen.

Feel free to start a GR to override the tech ctte if you think that is

> > Either way, given related questions were already before the tech
> > ctte
> > several times it would be nice if this could be decided quickly to
> > avoid this becoming yet another energy drain (we had several
> > sufficiently long enough threads about this topic already).
> As much as I'd like to see this resolved quickly, I fear it is
> blocked on the lack of patches supporting merged-/usr.

Given all new installations have been merged-/usr for years, it seems
to work sufficiently well for real-world use.


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