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package/systemd: hybrid cgroupfs hierarchy for docker compatibility

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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@paral.in>
Tested-by: Jérémy Rosen <jeremy.rosen@smile.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Christian Stewart 2019-11-11 00:33:48 -08:00 committed by Thomas Petazzoni
parent 26d67a2599
commit 272695277e
1 changed files with 1 additions and 0 deletions
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package/systemd/systemd.mk
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@ -26,6 +26,7 @@ SYSTEMD_CONF_OPTS += \
-Dima=false \
-Dldconfig=false \
-Ddefault-dnssec=no \
-Ddefault-hierarchy=hybrid \
-Dtests=false \
-Dsplit-bin=true \
-Dsplit-usr=false \