Make Pressflow/Drupal compatible with Ubuntu Lucid Lynx aka 10.04

If you have upgraded to Ubuntu Lucid while doing some drupal developments, you have probably realized that it’s shipped with PHP 5.3 which is incompatible with many contibuted modules (yep your projects would display crazy warnings all over the place). There are many solutions to this (until all modules are compatible with php 5.3) :

- Find the latest patches to fix the problems for each contributed module — well if you find them

- Get your hands dirty and fix the contributed modules that break — this is kinda cool and don’t forget to contribute back the patches to drupal.org.

- Change the error level reporting by hacking “includes/common.inc” file in drupal so that it will not display warnings (suppressing warnings in php.ini doesn’t work since drupal bypass those settings) — this is not really good if you actually write modules because you won’t get any error notifications which is bad.

- Downgrade to php 5.2.6 without leaving your lovely Ubuntu Lucid — well some people just want to run drupal projects without warnings, without getting their hands too dirty and now!!!

For the last option, well you came to the right place . Basically what we are going to do is tell Ubuntu Lucid , “whenever you want to install any related php thing, don’t install the lucid version, install the karmic version which is capped at 5.2″.

So go ahead and open your awesome terminal and run:

my_php_related_pkgs_installed=`dpkg -l | grep  php| awk  '{print $2}' |tr "\n" " "`

Now download this script and put it somewhere and run it with :

chmod +x php.sh

./php.sh

if you can’t download the file, below is the content, copy and save it in a file :

# remove all php packages
sudo aptitude purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
# use karmiс for php pakages
# pin-params:  a (archive), c (components), v (version), o (origin) and l (label).
echo "Package: php5\nPin: release a=karmic\nPin-Priority: 991\n"  | sudo tee /etc/apt/preferences.d/php > /dev/null
apt-cache search php5-|grep php5-|awk '{print "Package:", $1,"\nPin: release a=karmic\nPin-Priority: 991\n"}'|sudo tee -a /etc/apt/preferences.d/php > /dev/null
apt-cache search -n libapache2-mod-php5 |awk '{print "Package:", $1,"\nPin: release a=karmic\nPin-Priority: 991\n"}'| sudo tee -a /etc/apt/preferences.d/php > /dev/null
echo "Package: php-pear\nPin: release a=karmic\nPin-Priority: 991\n"  | sudo tee -a /etc/apt/preferences.d/php > /dev/null
# add karmic to sources list
egrep '(main restricted|universe|multiverse)' /etc/apt/sources.list|grep -v "#"| sed s/lucid/karmic/g | sudo tee /etc/apt/sources.list.d/karmic.list > /dev/null
# update package database (use apt-get if aptitude crash)
sudo apt-get update
# install php 5
sudo aptitude install -t karmic php5-cli php5-cgi
# or (and) sudo apt-get install -t karmic  libapache2-mod-php5
sudo aptitude hold `dpkg -l | grep php5| awk '{print $2}' |tr "\n" " "`
#done

Now reinstall back your previously installed PHP packages:

sudo apt-get install $my_php_related_pkgs_installed

There you go, you have your Pressflow/Drupal compatibility on Ubuntu Lucid!

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~ by Salimane Adjao Moustapha on June 3, 2010.