[OE-core] systemd: /run directory not created

[Jack Mitchell]

On 22/02/13 09:22, Jack Mitchell wrote:
> On 21/02/13 22:27, Khem Raj wrote:
>> On (14/02/13 15:44), Jack Mitchell wrote:
>>> On 14/02/13 15:31, Burton, Ross wrote:
>>>> On 14 February 2013 14:31, Jack Mitchell <ml at communistcode.co.uk> 
>>>> wrote:
>>>>> Did this ever go anywhere? I have just tried again today with 
>>>>> exactly the
>>>>> same result, all I did was change the DISTRO_FEATURES_INITMAN to 
>>>>> systemd.
>>>> Odd, as I just built and booted a systemd image (core-image-sato, in
>>>> poky master), and it worked fine.
>>>>
>>>> Ross
>>> I have a custom distro definition that cuts a lot of features out.
>>> Can you find out which package is supposed to create run and I can
>>> check if it is pulled in properly on my setup?
>>>
>>> I think something must be assumed somewhere and I don't have the
>>> features enabled to trigger it.
>> its created by base-files package. If you need hint how it works
>> with systemd take a look at bbappend that angstrom has for base-files
>> in meta-angstrom
> Ah, I see. Thanks Khem.
>
> So, the next question is; how come Angstrom requires these files to be 
> appended to base-files in order to get systemd going, when oe-core 
> doesn't?
>
> I notice there is:
>
> ${localstatedir}/volatile/run \
>
> In the base-files oe-core package, while in Angstrom we have:
>
> ${localstatedir}/run \
> /run \
>
> I understand oe-core having it as a volatile; but I don't understand 
> why it doesn't create the /run directory. I see some kind of logic 
> regarding it here:
>
> volatiles = "run log lock tmp"
>
> for d in ${volatiles}; do
> ln -sf volatile/$d ${D}${localstatedir}/$d
> done
>
> However, if it doesn't create the directory on my target filesystem 
> then something must be wrong...
>
>

Ok, some oddities and questions.

I have slightly altered the base-files volatiles create loop from:


for d in ${volatiles}; do
ln -sf volatile/$d ${D}${localstatedir}/$d
done

to

   for d in ${volatiles}; do
     ln -sfv /volatile/$d ${D}/$d
   done

Which gives the output:
DEBUG: Executing shell function do_install
'/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/run' 
-> '/volatile/run'
'/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/log' 
-> '/volatile/log'
'/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/lock' 
-> '/volatile/lock'
'/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/tmp/tmp' 
-> '/volatile/tmp'
DEBUG: Shell function do_install finished

The oddity is the volatiles variable looks like this:

volatiles = "run log lock tmp"

So why do we get:

'/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/tmp/tmp' 
-> '/volatile/tmp'

with /tmp/tmp?

I have also removed the ${localstatedir} otherwise I was getting this:

'/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/var/run' 
-> '/volatile/run'

With the extra var/ in. Which would make sense for why I wasn't getting 
directories made in the root folder. I suppose the issue is, why was 
everyone else?

Can anyone shed any light on this?

-- 

   Jack Mitchell (jack at embed.me.uk)
   Embedded Systems Engineer
   http://www.embed.me.uk

--