White Page after Install of PIA 2.8 under Ubuntu 10.04

[1x1speed]

hello,

i have a problem with inatallation of PIA 2.8 under ubuntu server 10.04. after the installation straight forward as the documentation. i get only a white page if i call http://server/cacti

i do the following steps:

install cacti 0.8.7e

Code: Select all

apt-get install cacti

update to 0.8.7g

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cd /tmp

wget http://mirror.informatik.uni-goettingen.de/ubuntu/pool/universe/c/cacti/cacti_0.8.7g-1_all.deb

dpkg -i /tmp/cacti_0.8.7g-1_all.deb

apt-get install cacti-spine

Installation der Plugin Architektur

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wget http://mirror.cactiusers.org/downloads/plugins/cacti-plugin-0.8.7g-PA-v2.8.tar.gz

tar -zvxf cacti-plugin-0.8.7g-PA-v2.8.tar.gz

cp -r /tmp/cacti-plugin-arch/files-0.8.7g/* /usr/share/cacti/site/

cd /usr/share/cacti/site 

patch -p1 -N cacti-plugin-0.8.7e-PA-v2.5.diff   

mysql cacti < pa.sql -u root -p

cd /usr/share/cacti/site/include

mv config.php.dist config.php

change in the file /include/global.php

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include($config["library_path"]."/adodb/adodb.inc.php");
change it to:
include("/usr/share/php/adodb/adodb.inc.php"); 

but why i get a white page? have i forgot everything?