On 06/22/2015 04:16 AM, Jan Kurik wrote:
> = Proposed System Wide Change: Glibc locale subpackaging  =
> https://fedoraproject.org/wiki/Changes/Glibc_locale_subpackaging
> 
> Change owner(s):
> * Mike Fabian <mfabian At redhat DOT com>
> * Siddhesh Poyarekar <spoyarek AT redhat DOT com>
> * Carlos O’Donell <codonell AT redhat DOT com>
> 
> This change should make it possible to install or uninstall locales 
> individually. 
> 
> == Detailed Description ==
> Currently the file /usr/lib/locale/locale-archive contains all locales and is 
> thus huge (103MB).
> For small systems (and containers) it would be useful to be able to install 
> only a small number of locales.
> Recently we made it possible to install a small number of locales by 
> supplying the rpm-macro “_install_langs”, for example
> 
>    rpm -i -D _install_langs="en:de_DE" glibc-common.rpm
> 
> will install all English locales and all German locales which start with 
> “de_DE”,
> 
>    rpm -i -D _install_langs="en_US.utf8" glibc-common.rpm
> 
> will install only the en_US.utf8 locale,
> 
>    rpm -i -D _install_langs="POSIX" glibc-common.rpm
> 
> will install nothing (but the POSIX/C is still available because it is 
> builtin into glibc).
> 
> But this approach works only during an Anaconda based install when Anaconda 
> supplies the _install_langs rpm-macro.
> When glibc is updated later, the _install_langs macro will not be supplied on 
> the command line during the update and the default value “all” of 
> “_install_langs” from /usr/lib/rpm/macros will be used and all locales come 
> back during an update.
> Therefore, this solution is far from perfect.
> It should be made possible to install and uninstall locales individually, for 
> example by having a separate package for the locales for each language. 
> Installing such a package would add these locales to locale-archive, 
> uninstalling it would remove them.
> 
> Anaconda then needs to be changed to handle such language packages. 
> 
> == Scope ==
> * Proposal owners: 
>    1. Figure out the best approach to to install/uninstall locales
>    2. Make sure that locales added manually by the user are not destroyed 
> (currently they are lost when glibc is updated)
> * Other developers: 
>    Anaconda needs to be made aware of the new approach to handle 
> installation/uninstallation of locales
> * Release engineering: 
>    I am not sure whether this has affects release engineering, probably the 
> packages in the install image change when parts are split out of glibc-common.
> * Policies and guidelines: 
>    No, this change does not require updates to policies and guidelines.
> * Trademark approval: not needed for this Change 
> 

So, is this why I'm getting:

Failed to set locale, defaulting to C

when running dnf?

I do kickstart installs with:

echo '%_install_langs C:en_US:en_US.UTF-8' > /mnt/sysimage/etc/rpm/macros

and with:

%packages --instLangs=en_US

since the latter is relatively new.


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Orion Poplawski
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