[OE-core] Regression bug: dbus messagebus user generation is wrong

[Koen Kooi]

Op 22 dec. 2011, om 10:10 heeft Martin Jansa het volgende geschreven:

> On Thu, Dec 22, 2011 at 09:49:01AM +0100, Bernhard Guillon wrote:
>> Hi all,
>> we switched the way we chown /usr/libexec/dbus-daemon-launch-helper
>> with this commit:
>> 
>> commit 46e6c3fa8034b12d178d605f3f5d7efe69671a13
>> Author: Otavio Salvador <otavio at ossystems.com.br>
>> Date:   Fri Oct 21 02:49:51 2011 +0000
>> 
>>     dbus: use useradd class to allow use in read-only filesystems
>> 
>>     Move creation of required user/groups to useradd class thus allowing
>>     use with read-only filesystems and booting the initial boot.
>> 
>>     Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
>> 
>> 
>> We changed the owner ship of the user on the device before this commit. 
>> Now we change the owner ship on build time which is wrong. If we change 
>> the owner ship on buildtime we cannot know the gid of the messagebus 
>> group. On my system it is e.g 117 but on my targtet it is 997. There is no 
>> standard mapping for gid to names so we need to switch back to change the 
>> group on the device.
> 
> See http://bugzilla.pokylinux.org/show_bug.cgi?id=1711
> but it's still broken in some cases (on my buildhost 3 from 5 machines
> are broken, 2 are working after last opkg changes).
> 
> Good test is to enable testlab and run this in your deploy/images directory
> find . ! -type l -name \*tar.gz`; do 
>  echo $i; 
>  tar -tvf $i | grep dbus-daemon-launch; 
>  tar --numeric-owner -tvf $i | grep dbus-daemon-launch; 
>  tar xzvpf $i ./etc/group; 
>  grep messagebus ./etc/group; 
> done | tee -a image.test
> 
> And working image needs to have not only messagebus as owner but also
> matching GID in 2nd line and last line from packaged /etc/group. With
> latest opkg fixes it seems to work, but only if there is messagebus in
> packaged /etc/group at all, reported here:
> http://lists.linuxtogo.org/pipermail/openembedded-core/2011-December/014619.html
> but probably got lost in other issues with new opkg, like this one
> http://lists.linuxtogo.org/pipermail/openembedded-core/2011-December/014654.html
> (if D is not needed to be set from opkg then why was offlineroot_varname.patch
> added in first place? and I have updated this after
> offlineroot_varname.patch removal and new version is in shr branch)
> 
>> I can send a patch which reenables the postinstall owner ship change if 
>> you like.
> 
> Such patch is already on ML from me, now I'm using .bbappend from my
> layer 
> http://git.shr-project.org/git/?p=meta-smartphone.git;a=commit;h=c08dfd5f5559902f6966648f75d6c6bfd2597a5b

I'm willing to put that into meta-oe till the problem is 100% fixed.

regards,

Koen
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