How to install liferay 5.2.3, jdk6, tomcat6, mysql 5 on linux

1) Download and install jdk 6.
http://java.sun.com/javase/downloads/index.jsp

2) Set an environment variable called $JAVA_HOME to point to your JDK directory.

3) Download and install mysql 5
http://dev.mysql.com/downloads/mysql/5.0.html

4) create database for liferay
create database lportal character set utf8;


5) Download and install the liferay/tomcat6 quickstart bundle.
http://sourceforge.net/projects/lportal/files/Liferay%20Portal/liferay-portal-tomcat-6.0-5.2.3.zip
(put it someplace like /usr/local/liferay - this will be now known as %TOMCAT_HOME)

6) Download the Portal 5.2.3 dependencies
http://downloads.sourceforge.net/project/lportal/Liferay%20Portal/5.2.3/liferay-portal-dependencies-5.2.3.zip?use_mirror=biznetnetworks

7) Create a new folder %TOMCAT_HOME/common/lib/ext
Extract the dependencies in there.

8) Download the mysql connector
http://dev.mysql.com/downloads/connector/j/5.0.html
Extract the files to #6) and %TOMCAT_HOME/lib/ext

9) Edit $TOMCAT_HOME/conf/Catalina/localhost/ROOT.xml.
Comment out the default databases. Uncomment the mysql database. Add in your database username and password.

10) Edit $TOMCAT_HOME/conf/catalina.properties.
Add the following to the line common.loader=
,${catalina.home}/common/classes,${catalina.home}/common/lib/ext/*.jar


11) Create file $TOMCAT_HOME/conf/jaas.config
PortalRealm {
com.liferay.portal.kernel.security.jaas.PortalLoginModule required;
};


12) Edit $TOMCAT_HOME/bin/catalina.bat
scroll down to the line
rem ----- Execute the requested command ---------------

go down another 10 lines to the spot right above set _EXECJAVA=%_RUNJAVA% and insert
set JAVA_OPTS=-Xms128m -Xmx512m -Dfile.encoding=UTF8 -Duser.timezone=GMT -Djava.security.auth.login.config=%CATALINA_HOME%/conf/jaas.config


13) Make sure your environment variables are set correct and working
go to %TOMCAT_HOME/bin
type in
./catalina.sh version


14) Start up tomcat. Same directory as above type in
./startup.sh; tail -f ../logs/catalina.out


15) Wait a little while for liferay to start up and go to your web browser and type in
http://localhost:8080
Sign in as test@liferay.com and password test.

Most of this is taken from the install guide here http://docs.liferay.com/portal/5.2/official/liferay-administration-guide.pdf
the guide is great except for small problem of: the guide instructions don't work.

Please feel free to add or correct something that I have missed. Hope this helps someone....