[systemd-devel] [ANNOUNCE] systemd 207

Lennart Poettering lennart at poettering.net
Tue Sep 17 12:03:50 PDT 2013

On Fri, 13.09.13 15:15, Colin Guthrie (gmane at colin.guthr.ie) wrote:

> 'Twas brillig, and Lennart Poettering at 13/09/13 03:16 did gyre and gimble:
> >         * The option "discard" (as known from Debian) is now
> >           synonymous to "allow-discards" in /etc/crypttab. In fact,
> >           the latter is preferred now (since it is easier to remember
> >           and type).
> I think you mean the "*former* is preferred now"? (I cannot see how
> "allow-discards" is easier to type than "discard" ;)

I clarified this in the NEWS file now. Of course "discard" is the 
preferred name as you guessed.

> >         * The systemd-sysctl tool no longer natively reads the
> >           file /etc/sysctl.conf. If desired, the file should be
> >           symlinked from /etc/sysctl.d/99-sysctl.conf. Apart from
> >           providing legacy support by a symlink rather than built-in
> >           code, it also makes the otherwise hidden order of application
> >           of the different files visible.
> It's also worth noting here that sysctl.d files are processed
> differently now.
> Up to and including v197 (or fabe5c0e5fce730aa66e10a9c4f9fdd443d7aeda),
> sysctl.d files had to be named higher than the 50-default.conf file to
> override something. e.g. if you wanted to override "kernel.sysrq = 16"
> then you needed to put it in a file named 51-i-know-better.conf in the
> appropriate location.
> >From v198+ the order changed, and you had to name the file *lower* than
> 50-default.conf, e.g. 49-i-know-better.conf.
> Now from v207 onwards the ordering has reverted back to the v197 logic
> (which I agree feels more natural).
> If you have distro tools and/or have deployed updates which adapted to
> this change in behaviour, you should undo those changes with this release.
> It may make sense to update the NEWS file in git to include a note about
> this (albeit very minor) "API" breakage (although the v198 NEWS didn't
> mention it's change in behaviour so perhaps it's fine to leave it out!).
> All the best

I added a short comment now to the NEWS file that mentions that this
basically reverts things to pre-198. Does that work for you?



Lennart Poettering - Red Hat, Inc.

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