[OE-core] [PATCH] rootfs-postcommands: generate /var/lib/systemd/clock

[Jan Remmet]

On Wed, Jun 15, 2016 at 12:14:17PM -0700, Khem Raj wrote:
> 
> > On Jun 15, 2016, at 6:36 AM, Jan Remmet <J.Remmet at phytec.de> wrote:
> > 
> > systemd timesyncd check /var/lib/systemd/clock instead of
> > /etc/timestamp.
> > If this file is missing it defaults to TIME_EPOCH. It's set while
> > configuring systemd.
> > 
> > Signed-off-by: Jan Remmet <j.remmet at phytec.de>
> > ---
> > meta/classes/rootfs-postcommands.bbclass | 6 ++++++
> > 1 file changed, 6 insertions(+)
> > 
> > diff --git a/meta/classes/rootfs-postcommands.bbclass b/meta/classes/rootfs-postcommands.bbclass
> > index db8b551..0c7b764 100644
> > --- a/meta/classes/rootfs-postcommands.bbclass
> > +++ b/meta/classes/rootfs-postcommands.bbclass
> > @@ -234,6 +234,12 @@ python write_image_manifest () {
> > # sane default time setting
> > rootfs_update_timestamp () {
> > 	date -u +%4Y%2m%2d%2H%2M%2S >${IMAGE_ROOTFS}/etc/timestamp
> > +
> > +	if ${@bb.utils.contains("DISTRO_FEATURES", "systemd", "true", "false", d)}; then
> > +		# touch needs timestamp as [[CC]YY]MMDDhhmm[.ss]
> > +		TS=$(sed 's/[.]*/&./13' ${IMAGE_ROOTFS}/etc/timestamp)
> > +		touch -t $TS ${IMAGE_ROOTFS}/var/lib/systemd/clock
> > +	fi
> > }
> 
> i wonder if this will work with read only rootfs.
I found no special handling for systemd and /var/lib if IMAGE_FEATURES
read-only-rootfs is used.
If timesyncd didn't find /var/lib/systemd/clock it defaults to the configure
time value und try to write /var/lib/systemd/clock. On read-only it will
silently fail.
So I don't see a problem here.

Jan
> 
> > 
> > # Prevent X from being started
> > --
> > 1.9.1
> > 
> > --
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>