[Buildroot] [PATCH 1/1] package/systemd: hybrid cgroupfs hierarchy for docker compatibility

[Jérémy ROSEN]

Keeping a list like that is going to be tricky...
Let's just hope the pressure on docker is strong enough and in a version or
two we can move to unified
also:
Tested-by: Jérémy Rosen <jeremy.rosen at smile.fr>

Le lun. 11 nov. 2019 à 10:05, James Hilliard <james.hilliard1 at gmail.com> a
écrit :

> On Mon, Nov 11, 2019 at 1:33 AM Christian Stewart <christian at paral.in>
> wrote:
> >
> > Docker fails to start with "Devices cgroup isn't mounted" as of systemd
> 243.
> > According to the systemd documentation:
> >
> >   systemd now defaults to the "unified" cgroup hierarchy setup during
> >   build-time, i.e. -Ddefault-hierarchy=unified is now the build-time
> default.
> >   Previously, -Ddefault-hierarchy=hybrid was the default. [...]
> Downstream
> >   production distributions might want to continue to use
> >   -Ddefault-hierarchy=hybrid (or even =legacy) for their builds as
> unfortunately
> >   the popular container managers have not caught up with the kernel API
> changes.
> >
> > Changing this option to "hybrid" or "legacy" fixes the Docker startup.
> >
> > Reference: https://github.com/opencontainers/runc/issues/654
> >
> > Signed-off-by: Christian Stewart <christian at paral.in>
> > ---
> >  package/systemd/systemd.mk | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/package/systemd/systemd.mk b/package/systemd/systemd.mk
> > index 94d5f703cd..92490eb86b 100644
> > --- a/package/systemd/systemd.mk
> > +++ b/package/systemd/systemd.mk
> > @@ -26,6 +26,7 @@ SYSTEMD_CONF_OPTS += \
> >         -Dima=false \
> >         -Dldconfig=false \
> >         -Ddefault-dnssec=no \
> > +       -Ddefault-hierarchy=hybrid \
> This should probably be conditionally enabled only when packages that
> don't support the unified cgroup hierarchy are enabled.
> >         -Dtests=false \
> >         -Dsplit-bin=true \
> >         -Dsplit-usr=false \
> > --
> > 2.24.0
> >
>


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