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

[Jonathan Liu]

On 23/02/2013 1:50 AM, Jack Mitchell wrote:
> On 22/02/13 14:15, Jack Mitchell wrote:
>> 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?
>>
>
> Right,
>
> I think it should be this (minus the debug):
>
>   for d in run log tmp lock; do
>     echo ${D}
>     echo $d
>     ln -sfv ${localstatedir}/volatile/$d ${D}/$d
>   done
>
> Which gives:
>
> 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
> '/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/run' 
> -> '/var/volatile/run'
> /mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image 
>
> log
> '/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/log' 
> -> '/var/volatile/log'
> /mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image 
>
> tmp
> '/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/tmp/tmp' 
> -> '/var/volatile/tmp'
> /mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image 
>
> lock
> '/mnt/SSD/oe-r0005/r0005/tmp/work/beaglebone-oecore-linux-gnueabi/base-files/3.0.14-r73/image/lock' 
> -> '/var/volatile/lock'
> DEBUG: Shell function do_install finished
> ~
>
> The only issue I am having is still the double tmp/tmp thing; anyone 
> know why it is doing it? It seems like a weird substitution or 
> something.....
${D}/tmp is a directory that already exists, so the symbolic link is 
created at ${D}/tmp/tmp instead. Probably need to remove /tmp from dirs1777.

Regards,
Jonathan