[systemd-devel] [PATCH] localed: search locale settings on kernel cmdline first

[microcai]

在 2014年6月30日 星期一 15:10:06，Lennart Poettering 写道：
> On Mon, 02.06.14 18:03, Michal Sekletar (msekleta at redhat.com) wrote:
> 
> Heya!
> 
> Sorry for the late response!
> 
> > systemd spawns services with locale settings taken from kernel
> > cmdline. If it doesn't find anything there, then it proceeds with
> > parsing settings from /etc/locale.conf.  localed should do the same and
> > look at kernel cmdline first.
> 
> Hmm, this would create the weird situation where changing the settings
> with localectl would have no effect on the settings it displays, right?
> 
> It's a weird thing: on one hand we want the rule that kernel cmdline
> args override configuration in /etc. On the other we want that
> localectl to be both getter and setter for the settings, and connect
> them directly. Of course localectl cannot change the kernel cmdline.
> 
> We could make localed refuse changing the settings if there's something
> on the kernel cmdline, but I think I'd hate that, since the admin should
> always be able to change the settings.
> 
> Maybe another option is to improve localectl on the client side to
> simply warn the user if there's something on the kernel cmdline
> specified? (this check should probably test this directly, bypassing
> localed, and thus get skipped if localectl is used on a remote host).
> 
> i.e. just a simple warning if you type "localectl" that says: "Warning:
> Locale configuration has been specified on the kernel command line,
> overriding the system settings below." or so...

kernel has BOOT time, etc settings has modified time, which one is newer, take 
that ?

well, them every time you reboot, kernel cmdline settings win. 

> 
> Opinions?
> 
> Lennart