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flatcar-postinst: Use lazy unmount for /etc in temporary namespace #52

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Merged
pothos merged 1 commit into from
Oct 13, 2025
Merged

flatcar-postinst: Use lazy unmount for /etc in temporary namespace #52

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2 changes: 1 addition & 1 deletion flatcar-postinst
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Expand Up @@ -248,7 +248,7 @@ done
# To fix this, remove any opaque markers for this directory. Other common folders which
# we introduce later in the lowerdir could also be handled that way, e.g., /etc/cni/.
if mountpoint -q /etc; then
unshare -m sh -c "umount /etc && mkdir -p /etc/extensions && attr -R -r overlay.opaque /etc/extensions || true"
unshare -m sh -c "umount -l /etc && mkdir -p /etc/extensions && attr -R -r overlay.opaque /etc/extensions || true"
fi

# Systemd version >= 256 does not boot anymore if cgroupv1 is enabled or SYSTEMD_CGROUP_ENABLE_LEGACY_FORCE=1 is set
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