[OE-core] [PATCH] systemd: Fix the problem of an empty journal on boot

[Khem Raj]

On Mar 5, 2015 6:13 PM, "Randy Witt" <randy.e.witt at linux.intel.com> wrote:
>
> systemd by default tries to write the journal to /var/log/journal.
> But base-files has a symlink /var/log -> /var/volatile/log. And
> /var/volatile is a tmpfs mount in /etc/fstab.
>
> If the journal service started before /var/volatile was mounted (which
> was the typical scenario) then the journal would appear empty since
> the old location was mounted over.
>
> This change fixes the problem by ensuring that the journal doesn't start
> until after the mount happens.
>

What happens if folks have a different fstab then default? Will it still
work

> [Yocto #7388]
>
> Signed-off-by: Randy Witt <randy.e.witt at linux.intel.com>
> ---
>  meta/recipes-core/systemd/systemd/journald-volatile.conf | 6 ++++++
>  meta/recipes-core/systemd/systemd_219.bb                 | 2 ++
>  2 files changed, 8 insertions(+)
>  create mode 100644
meta/recipes-core/systemd/systemd/journald-volatile.conf
>
> diff --git a/meta/recipes-core/systemd/systemd/journald-volatile.conf
b/meta/recipes-core/systemd/systemd/journald-volatile.conf
> new file mode 100644
> index 0000000..b11e160
> --- /dev/null
> +++ b/meta/recipes-core/systemd/systemd/journald-volatile.conf
> @@ -0,0 +1,6 @@
> +# If /var/volatile is a mount point then make sure to mount it before
> +# the journal starts. This is because base-files creates a symlink
> +# /var/log -> /var/volatile/log. And if the journal starts before the
mount
> +# happens, the journal will appear empty until restarted.
> +[Unit]
> +After=var-volatile.mount
> diff --git a/meta/recipes-core/systemd/systemd_219.bb
b/meta/recipes-core/systemd/systemd_219.bb
> index 3c4b6cf..2be66af 100644
> --- a/meta/recipes-core/systemd/systemd_219.bb
> +++ b/meta/recipes-core/systemd/systemd_219.bb
> @@ -48,6 +48,7 @@ SRC_URI = "git://
anongit.freedesktop.org/systemd/systemd;branch=master;protocol=
>             file://00-create-volatile.conf \
>             file://init \
>             file://run-ptest \
> +           file://journald-volatile.conf \
>            "
>
>  S = "${WORKDIR}/git"
> @@ -143,6 +144,7 @@ do_install() {
>         install -m 0644 ${WORKDIR}/*.rules ${D}${sysconfdir}/udev/rules.d/
>
>         install -m 0644 ${WORKDIR}/00-create-volatile.conf
${D}${sysconfdir}/tmpfiles.d/
> +       install -D -m 0644 ${WORKDIR}/journald-volatile.conf
${D}${systemd_unitdir}/system/systemd-journald.service.d/journald-volatile.conf
>
>         if
${@bb.utils.contains('DISTRO_FEATURES','sysvinit','true','false',d)}; then
>                 install -d ${D}${sysconfdir}/init.d
> --
> 1.9.3
>
> --
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> Openembedded-core at lists.openembedded.org
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