Installing PEAR modules necessary on RHEL 3 (or clones)

# first change to the framework directory and get the framework PEAR packages installed

cd /var/www/html/horde/framework/
php install-packages.php

# You will need to download these two packages to complete the pear installation

wget http://dag.wieers.com/packages/php-sqlite/php-sqlite-1.0.2-1.rhel3.dag.i386.rpm
wget http://dag.wieers.com/packages/sqlite/sqlite-2.8.16-1.1.el3.rf.i386.rpm
rpm -ivh sqlite-2.8.16-1.1.el3.rf.i386.rpm
rpm -ivh php-sqlite-1.0.2-1.rhel3.dag.i386.rpm

# new as of 3/19/2007 – was painful to figure this out. The first issue is to get the structures graph dependency
# the second issue is to make a copy of /usr/bin/pear since updating pear seems to delete it

pear install structures_graph
cp /usr/bin/pear /opt
pear upgrade pear
cp /opt/pear /usr/bin

# needed for Horde base

pear install Log
pear install Mail_Mime
pear upgrade DB
pear install Date
pear install Auth_SASL
pear install File
pear install Net_URL

# needed for IMP

pear install HTTP_Request

# needed for Wicked

pear install Text_Wiki

# needed for Ingo

pear install Net_Sieve
pear install Net_Socket

# needed for weather portal block in Horde

pear install cache
pear install net_dime
pear install soap
pear install xml_util
pear install xml_parser
pear install serializer
pear install xml_serializer
pear install services_weather

# needed for passwd smbldap driver

pear install Crypt_CHAP

# and lastly…

pear upgrade-all

If for some reason PEAR breaks…

then I just

cd /usr/share
mv pear pear.bak
rpm -e php-mysql php-imap php-ldap

# for RHEL 3 only

up2date php-mysql php-imap php-ldap php

# for RHEL clones

yum install php-mysql php-imap php-ldap php

and then back to the top and reinstall starting with

cd /var/www/html/horde/framework
php install-packages.php

thanks http://wiki.horde.org/RHEL3PearHowTo