Как установить php 5.2 на Ubuntu 10.04

Создаёте скрипт в текстовом редакторе gedit и сохраняете его как php5_2-downgrade.sh в папке
/usr/local/sbin/

#!/bin/bash
#  by Ruben Barkow (rubo77) http://www.entikey.z11.de/

#  Originally Posted by Bachstelze http://ubuntuforums.org/showthread.php?p=9080474#post9080474
#  OK, here's how to do the Apt magic to get PHP packages from the karmic  repositories:

echo "Am I root?  "
if [ "$(whoami  &2>/dev/null)" != "root" ] && [ "$(id -un  &2>/dev/null)" != "root" ] ; then
echo "  NO!

Error:  You must be root to run this script.
Enter
sudo su
"
exit 1
fi
echo  "  OK";


# finish all apt-problems:
apt-get -f install

#  remove all your existing PHP packages. You can list them with dpkg -l|  grep php
PHPLIST=$(for i in $(dpkg -l | grep php|awk '{ print $2 }'  ); do echo $i; done)
echo these pachets will be removed: $PHPLIST 
#  you need not to purge, if you have upgraded from karmic:
aptitude  remove $PHPLIST
# on a fresh install, you need purge:
# aptitude  remove --purge $PHPLIST


#Create a file each in  /etc/apt/preferences.d like this (call it for example  /etc/apt/preferences.d/php5.2);
#
#Package: php5
#Pin: release  a=karmic
#Pin-Priority: 991
#
#The big problem is that  wildcards don't work, so you will need one such stanza for each PHP  package you want to pull from karmic:

echo  ''>/etc/apt/preferences.d/php5.2
for i in $PHPLIST ; do echo  "Package: $i
Pin: release a=karmic
Pin-Priority: 991
">>/etc/apt/preferences.d/php5.2;  done

# duplicate your existing sources.list replacing lucid with  karmic and save it in sources.list.d:
#sed s/lucid/karmic/g  /etc/apt/sources.list | sudo tee /etc/apt/sources.list.d/karmic.list

#  better exactly only the needed sources, cause otherwise you can get a  cachsize problem:
echo "# needed sources vor php5.2:
deb http://de.archive.ubuntu.com/ubuntu/  karmic main restricted
deb-src http://de.archive.ubuntu.com/ubuntu/  karmic main restricted

deb http://de.archive.ubuntu.com/ubuntu/  karmic-updates main restricted
deb-src http://de.archive.ubuntu.com/ubuntu/  karmic-updates main restricted

deb http://de.archive.ubuntu.com/ubuntu/  karmic universe
deb-src http://de.archive.ubuntu.com/ubuntu/  karmic universe
deb http://de.archive.ubuntu.com/ubuntu/  karmic-updates universe
deb-src http://de.archive.ubuntu.com/ubuntu/  karmic-updates universe

deb http://de.archive.ubuntu.com/ubuntu/  karmic multiverse
deb-src http://de.archive.ubuntu.com/ubuntu/  karmic multiverse
deb http://de.archive.ubuntu.com/ubuntu/  karmic-updates multiverse
deb-src http://de.archive.ubuntu.com/ubuntu/  karmic-updates multiverse

deb http://security.ubuntu.com/ubuntu  karmic-security main restricted
deb-src http://security.ubuntu.com/ubuntu  karmic-security main restricted
deb http://security.ubuntu.com/ubuntu  karmic-security universe
deb-src http://security.ubuntu.com/ubuntu  karmic-security universe
deb http://security.ubuntu.com/ubuntu  karmic-security multiverse
deb-src http://security.ubuntu.com/ubuntu  karmic-security multiverse
" >>  /etc/apt/sources.list.d/karmic.list

aptitude update

apache2ctl  restart

echo install new from karmic:
aptitude -t karmic  install $PHPLIST

# at the end retry the modul libapache2-mod-php5  in case it didn't work the first time:
aptitude -t karmic install  libapache2-mod-php5

apache2ctl restart

Затем в терминале делаете скрипт выполняемым

chmod +x  /usr/local/sbin/php5.2-downgrade

Идём в Синаптик, выделяем все зависымые от php5 пакеты и нажимаем "Пакеты">"Зафиксировать версию".