Tag Archive: aptitude

Downgrade PHP to 5.2 on Ubuntu 10.04

As of version 6.14, Drupal works with PHP 5.3, but many essential modules still issue warnings (usually due to passing expressions by reference). If your Ubuntu 10.04 (Lucid Lynx) server is running 5.3, this script will automate the downgrade to the latest 5.2 by telling aptitude to use the source lists for Ubuntu 9.10 (Karmic Koala).

Thanks to Nick Veenhof, mrkandy, and their many commenters, from whom this script is derived.

php_installed=`dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
 
# remove all php packge
sudo aptitude purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
 
# use karmic for php pakage
# pin-params:  a (archive), c (components), v (version), o (origin) and l (label).
echo -e "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 -e "Package: php-pear\nPin: release a=karmic\nPin-Priority: 991\n"  | sudo tee -a /etc/apt/preferences.d/php > /dev/null
 
# add karmic to source 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
sudo apt-get install $php_installed
 
sudo aptitude hold `dpkg -l | grep php5| awk '{print $2}' |tr "\n" " "`
 
#done

Of course, make sure to restart Apache when you’re finished.