fedora-release-$PRODUCT, /etc/issue, /etc/os-release, Per-Product Configs and more!

Lennart Poettering mzerqung at 0pointer.de
Mon Jun 30 21:41:12 UTC 2014

On Mon, 30.06.14 17:31, Stephen Gallagher (sgallagh at redhat.com) wrote:

> > On Jun 30, 2014, at 5:15 PM, Lennart Poettering <mzerqung at 0pointer.de> wrote:
> > 
> > On Mon, 30.06.14 16:43, Stephen Gallagher (sgallagh at redhat.com) wrote:
> > 
> >>>> Well, ideally we'd like the majority of the file to be owned by 
> >>>> fedora-release and then just add the one or two additional
> >>>> fields specific to the products programmatically.
> >>>> 
> >>>> I suppose though that we could just carry complete duplicates in
> >>>> each fedora-release-* package. Particularly if we end up adding
> >>>> a fedora-release-nonproduct (or however we name it) package to
> >>>> solve the depsolving issues as suggested by James Antill.
> >>> 
> >>> I really don't understand why /usr/lib/os-release should have an
> >>> API to modify. It describes the vendor operating system image,
> >>> really, and his hence strictly not dynamic. We should never invent
> >>> mechanisms that make files in /usr subject to runtime
> >>> configuration. That would be completely backwards.
> >> 
> >> Well, it's semi-dynamic. I suppose I'm treating it more like an
> >> additive drop directory.
> >> 
> >> In a sense, there's a certain amount of this definition that every
> >> Fedora install will have. The Products then add to this definition. A
> >> basic piece of it is mandatory, but the outer edges are add-ons.
> > 
> > I am not sure this is really what /etc/os-release is for. It's for
> > declaring operating system names and versions, not really for containing
> > a list of packages you have installed.
> > 
> That's exactly what I'm describing, though. I'm not sure where you're
> getting "a list of packages you have installed" from. We're trying to
> describe that this OS is both "Fedora" and (over and above that) also
> "Fedora Server".

Well, either the OS is Fedora or it isn't. If it is Fedora, then
"ID=fedora" should be set. If it isn't, then instead you should set
"ID=fedora-foobar", but to express the compatibility you should also set
"ID_LIKE=fedora". See os-release(5) for details on ID= and ID_LIKE=.


Lennart Poettering, Red Hat

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