# Installing Asterisk 1.8 and FreePBX 2.10.0 on Ubuntu natty
# make sure the host is set properly
cat /etc/hostname
cat /etc/hosts
cat /etc/resolv.conf

#
#
# Note that if the <<PASSWORD>>
# contains an exclamation mark "!", we have to set the "" before it
#
#

# Installing basic desired packages in this box
sudo apt-get update
sudo apt-get install mysql-client mysql-common mysql-server # set your <<PASSWORD>> password
#select apache for the phpmyadmin
sudo apt-get install phpmyadmin emacs gcc python tshark python-software-properties

# Some repos
sudo apt-key adv --keyserver pgp.mit.edu --recv-keys 175E41DF
sudo add-apt-repository "deb http://packages.asterisk.org/deb `lsb_release -cs` main"

# Installing apache and asterisk packages
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install linux-headers-$(uname -r)
sudo apt-get install asterisk-1.8 asterisk-mysql apache2-mpm-itk php5-cli php-db php5-mysql
# set the country code 1 when prompted
sudo apt-get install asterisk-dahdi 
# optional
sudo apt-get install asterisk-core* asterisk-moh*  asterisk-mp3

# Final update and upgrade
sudo apt-get update
sudo apt-get upgrade

# Fixing the "Could not reliably determine the server’s fully qualified domain name" from apache
sudo /etc/init.d/apache2 restart
sudo sh -c "echo 'ServerName localhost' >> /etc/apache2/httpd.conf"
sudo /etc/init.d/apache2 restart

# Lets configure the mysql
mysql -u root -p <<< "create database asterisk;"
mysql -u root -p <<< "create database asteriskcdrdb;"
mysql -u root -p <<< "grant all on asterisk.* to freepbx@localhost identified by '<<PASSWORD>>';"
mysql -u root -p <<< "grant all on asteriskcdrdb.* to freepbx@localhost identified by '<<PASSWORD>>';"


# Getting freepbx
cd; wget http://mirror.freepbx.org/freepbx-2.10.0.tar.gz
cd; sudo tar zxvf freepbx-2.10.0.tar.gz -C /usr/src

# More sql stuff
mysql -p -u freepbx asterisk < /usr/src/freepbx-2.10.0/SQL/newinstall.sql
mysql -p -u freepbx asteriskcdrdb < /usr/src/freepbx-2.10.0/SQL/cdr_mysql_table.sql

# Installing freepbx...
# Set everything by default except the IP
cd /usr/src/freepbx-2.10.0/ ; sudo ./install_amp --username freepbx --password <<PASSWORD>>

# Permissions
sudo chown -R asterisk:asterisk /var/www/html/
sudo usermod -a -G asterisk root
sudo adduser www-data asterisk
sudo amportal chown

# Configuring apache
sudo sh -c "echo '''<VirtualHost *:80>
        ServerAdmin webmaster@localhost
        DocumentRoot /var/www/html/
        <Directory />
                Options FollowSymLinks
                AllowOverride None
	</Directory>
	<Directory /var/www/html/>
		Options Indexes FollowSymLinks MultiViews
		AllowOverride all
		Order allow,deny
		allow from all
        </Directory>
	ErrorLog ${APACHE_LOG_DIR}/freepbx-error.log
	LogLevel warn
	CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>''' > /etc/apache2/sites-available/default"

# restart apache
sudo /etc/init.d/apache2 restart

# amportal to rc.local
sudo emacs /etc/rc.local
# write this above exit 0
/usr/sbin/amportal start

# restart asterisk
sudo /etc/init.d/asterisk restart; sudo asterisk -vvvvvvvvvr

#
#
# go to the IP you set when running the ./install_amp freepbx installation script 
# The user/password would be admin/admin
#
#

Really helped by this post.