Before you install

Ubuntu 10.04 32-bit or 64-bit server (or desktop)

• 2 GB of memory (4 GB is better)
• Dual-core 2.6 GHZ CPU (quad core is better)
• Ports 80, 1935, 9123 accessible
• Port 80 is available and not used by another application
• 400G of free disk space (or more) for recordings

Installation of BigBlueButton 0.8-beta-3

1. Update your server

# Add the BigBlueButton key
wget http://ubuntu.bigbluebutton.org/bigbluebutton.asc -O- | sudo apt-key add -

# Add the BigBlueButton repository URL and ensure the multiverse is enabled
echo "deb http://ubuntu.bigbluebutton.org/lucid_dev_08/ bigbluebutton-lucid main" | sudo tee  etc/apt/sources.list.d/bigbluebutton.list
echo "deb http://us.archive.ubuntu.com/ubuntu/ lucid multiverse" | sudo tee -a /etc/apt/sources.list

..

sudo apt-get update
sudo apt-get dist-upgrade

..

2. Install Ruby

sudo apt-get install zlib1g-dev libssl-dev libreadline5-dev libyaml-dev build-essential bison checkinstall libffi5 gcc checkinstall libreadline5 libyaml-0-2

create a file called install-ruby.sh

vi install-ruby.sh

…

#!/bin/bash
cd /tmp
wget http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p290.tar.gz
tar xvzf ruby-1.9.2-p290.tar.gz
cd ruby-1.9.2-p290
./configure --prefix=/usr
            --program-suffix=1.9.2
            --with-ruby-version=1.9.2
            --disable-install-doc
make
sudo checkinstall -D -y
                  --fstrans=no
                  --nodoc
                  --pkgname='ruby1.9.2'
                  --pkgversion='1.9.2-p290'
                  --provides='ruby'
                  --requires='libc6,libffi5,libgdbm3,libncurses5,libreadline5,openssl,libyaml-0-2,zlib1g'
                  [email protected]
sudo update-alternatives --install /usr/bin/ruby ruby /usr/bin/ruby1.9.2 500
                        --slave   /usr/bin/ri   ri   /usr/bin/ri1.9.2
                        --slave   /usr/bin/irb  irb  /usr/bin/irb1.9.2
                        --slave   /usr/bin/gem  gem  /usr/bin/gem1.9.2
                        --slave   /usr/bin/erb  erb  /usr/bin/erb1.9.2
                        --slave   /usr/bin/rdoc rdoc /usr/bin/rdoc1.9.2

Next, run the script

chmod +x install-ruby.sh
./install-ruby.sh

After the install finishes, type ruby -v. You should see the ruby interpreter output 1.9.2p290 (or later).

$ ruby -v
ruby 1.9.2p290 (2011-07-09 revision 32553)

Next type gem -v.

$ gem -v
1.3.7

Finally, to make sure you can install gems, type sudo gem install hello (BigBlueButton does not need the gem hello; rather, we’re just testing to makes sure gem is working properly).

$ sudo gem install hello
Successfully installed hello-0.0.1
1 gem installed
Installing ri documentation for hello-0.0.1...
Installing RDoc documentation for hello-0.0.1...

…

3. Install BigBlueButton

We’re now ready to install BigblueButton. Type

   sudo apt-get install bigbluebutton

…

4. Install API Demos

To interactively test your BigBlueButton server, you can install a set of API demos.

   sudo apt-get install bbb-demo

…

5. Do a Clean Restart

To ensure BigBlueButton has started cleanly, enter the following commands:

   sudo bbb-conf --clean
   sudo bbb-conf --check

…

Ref:http://code.google.com/p/bigbluebutton/wiki/08InstallationUbuntu