[DebianGIS-dev] Help with postgis and backport to lenny using pbuilder

[Alan Boudreault]

Yes, it's probably just a pining problem. You can also see if the 
package is available with its pin number with: apt-cache policy libpq5

regards,
Alan

Stephen Woodbridge wrote:
> Hi Alan,
>
> Thank you for your quick response. Your suggestions did not work.
>
> woodbri at mappy:/u/local/src$ apt-show-versions | grep libpq
> libpq-dev/lenny uptodate 8.3.9-0lenny1
> libpq4 8.1.15-0etch1 installed: No available version in archive
> libpq5/lenny uptodate 8.3.9-0lenny1
>
> woodbri at mappy:/u/local/src$ sudo dpkg -i postgis_1.5.1-1_amd64.deb
> Selecting previously deselected package postgis.
> (Reading database ... 75002 files and directories currently installed.)
> Unpacking postgis (from postgis_1.5.1-1_amd64.deb) ...
> dpkg: dependency problems prevent configuration of postgis:
>  postgis depends on libpq5 (>= 8.4~0cvs20090328); however:
>   Version of libpq5 on system is 8.3.9-0lenny1.
> dpkg: error processing postgis (--install):
>  dependency problems - leaving unconfigured
> Processing triggers for man-db ...
> Errors were encountered while processing:
>  postgis
>
> woodbri at mappy:/u/local/src$ sudo apt-get install -f
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Correcting dependencies... Done
> The following packages will be REMOVED:
>   postgis
> 0 upgraded, 0 newly installed, 1 to remove and 3 not upgraded.
> 1 not fully installed or removed.
> After this operation, 1738kB disk space will be freed.
> Do you want to continue [Y/n]?
> (Reading database ... 75013 files and directories currently installed.)
> Removing postgis ...
> Processing triggers for man-db ...
>
> Does this mean that I need to pin libpq5 that is in backports.org or 
> am I still missing something else?
>
> -Steve
>
> Alan Boudreault wrote:
>> Hi Stephen,
>>
>> Just a quick thing you could try: "apt-get install -f" , this should 
>> install the missing dependency and continue the postgis package 
>> installation normally. Be sure you have lenny-backports in you 
>> sources.list because the libpq5 version 8.4 is there. Note that dpkg 
>> will never download and install missing dependencies, it's not its 
>> job. It's the apt-get job. That's why you have to call apt-get to fix 
>> things and continue what dpkg started before. You can also take a 
>> look at the "gdebi" utility. It's a tool to install a .deb file and 
>> it *should* (never used it much) call apt-get itself to solve missing 
>> dependencies.
>>
>> see also my comments below....
>>
>> Stephen Woodbridge wrote:
>>> Hi all,
>>>
>>> I have just found pbuilder and I'm using it with the pkg-grass 
>>> debian package definitions for geos-3.2.0 and postgis-1.5.1 building 
>>> packages for lenny. This is all very cool and makes things soo much 
>>> easier. I am also using some packages backports.org.
>>>
>>> So, I have gotten things setup and have been able to build packages, 
>>> but postgis and postgresql-8.3-postgis will not install giving the 
>>> following error:
>>>
>>> woodbri at mappy:/u/local/src$ sudo dpkg -i postgis_1.5.1-1_amd64.deb
>>> [sudo] password for woodbri:
>>> (Reading database ... 75044 files and directories currently installed.)
>>> Preparing to replace postgis 1.5.1-1 (using 
>>> postgis_1.5.1-1_amd64.deb) ...
>>> Unpacking replacement postgis ...
>>> dpkg: dependency problems prevent configuration of postgis:
>>>  postgis depends on libpq5 (>= 8.4~0cvs20090328); however:
>>>   Version of libpq5 on system is 8.3.9-0lenny1.
>>> dpkg: error processing postgis (--install):
>>>  dependency problems - leaving unconfigured
>>> Processing triggers for man-db ...
>>> Errors were encountered while processing:
>>>  postgis
>>>
>>> I have attached the postgis_1.5.1-1_amd64.build.gz from the pdebuild.
>>>
>>> I think this might be because the control_lenny file has BOTH
>>>    postgresql-server-dev-8.3, postgresql-server-dev-8.4
>>> as Build-Depends for postgis.
>>>
>>
>> That is ok, the package is made to build the postgis extension for 
>> both versions.
>>
>>> Would this not then require BOTH
>>>
>>> libpq5 8.4~0cvs20090328 from postgresql-8.4
>>> libpq5 8.3.9-0lenny1    from postgresql-8.3
>>>
>>> to be part of the dependencies, probably with the later one winning 
>>> or whatever?
>>>
>>
>> No. libpq5 is the library that allows user programs to communicate 
>> with a postgresql server. The version of libpq5 >=8.4 is compatible 
>> to communicate with servers from PostgreSQL 8.2 or later. So it's all 
>> right that the postgis package has libpq5 >=8.4.x as dependency.
>>
>>> Any ideas how to fix this? Does the control file need to be split 
>>> into two files one for postgresql-8.3 and one for postgresql-8.4?  
>>> would the rules file need to changes also or instead of the control 
>>> file?
>>>
>>
>> As I said, the control and rule files are ok and build the extension 
>> for postgresql 8.3 and 8.4.
>>
>>> I've put a lot of time and effort into trying to resolve this, but I 
>>> just don't know that much about building debian packages. Reall need 
>>> to guidance and help on this one.
>>>
>>> Best regards,
>>>   -Steve
>>>   
>>> ------------------------------------------------------------------------ 
>>>
>>>
>>> _______________________________________________
>>> Pkg-grass-devel mailing list
>>> Pkg-grass-devel at lists.alioth.debian.org
>>> http://lists.alioth.debian.org/mailman/listinfo/pkg-grass-devel
>>
>> Hope this help,
>>
>> regards,
>> Alan
>>
>


-- 
Alan Boudreault
Mapgears
http://www.mapgears.com/