[poky] Running script after installation (postinst)

[Patrick]

On 06/12/2012 04:47 PM, Richard Purdie wrote:
> On Tue, 2012-06-12 at 16:35 +0200, Patrick wrote:
>> Dear all,
>>
>> In one of our recipes we need to execute a small script after the
>> installation of the package. Following yocto dev manual point 4.3.6 we
>> have added a pkg_postinst function.
>>
>> This doesn’t work properly as the script is executed at first start-up
>> and not after installation. Below are an example of this recipe.
>>
>> Do you have any idea why this script is started as first boot time and
>> not after installation ?
>>
>> Thanks in advance for any help !
>
> We try and run postinstalls "offline" at image creation time. If they
> fail, they run at first boot.
>
> You can tell which context you're in by the contents of the $D variable
> (note, $D, not ${D}). For example, you could therefore do:
>
>
> pkg_postinst_task-system-tweaks () {
>     #!/bin/sh -e
>
>     #Mount tmprecovery at startup
>     mkdir -p $D/tmprecovery
>     mkdir -p $D/data
>     echo "/dev/mtdblock6        /tmprecovery        yaffs2      0 0">>  $D/etc/fstab
>     echo "/dev/mtdblock7        /data               yaffs2   noauto  0 0">>  $D/etc/fstab
>
> Cheers,
>
> Richard
>

Thanks for your answer

The problems when using $D is that the script is executed against the 
files of the package not against the whole rootfs. For example in the 
dummy recipes above we change the file $D/etc/fstab that is not in the 
package of the recipes.

We have also tried to add (R)DEPENDS to the package that contains fstab 
with no change.

Any idea why ?

Patrick