Solved: Amazon Instant Video won't play on Firefox on Ubuntu 12.10

http://helpx.adobe.com/x-productkb/multi/flash-player-11-problems-playing.html

To summarize:

1. Install hal
2. Remove directories from ~/.adobe/Flash_Player
3. Restart Firefox and watch a video

Install Ruby on Rails development tools on Ubuntu 12.04

I ran into a number of issues installing this entire stack and then running a 1.9.3 / 3.2.0 application.  I won't detail the errors here.  The order here is somewhat important as the postgresql-server-dev-all was required during bundling.
Please see my next post for information regarding setup for a specific application.

Install postgreSQL

https://help.ubuntu.com/community/PostgreSQL

$ sudo apt-get install postgresql

$ sudo apt-get install postgresql-server-dev-all

Looks like database was initialized and started for me and user postgres was created.  I used ps -ef | grep postgres to figure out where the relavent directories used by my installation where.  The installation created the install in /usr/lib/postgresql/9.1 and the data directory as /var/lib/postgresql/9.1/main.  Configuration files in /etc/postgresql/9.1/main.

User postgres didn't have the postgresql bin directory on the path so I had to create a new .bashrc file for postgres so I don't have to reinitialize variables every time I open a console.  

export PATH=/usr/lib/postgresql/9.1/bin:$PATH

export PGDATA=/var/lib/postgresql/9.1/main

I modified pg_hba.conf to use the trust method so I wouldn't have to supply a password to the database.  This was done since the database.yml file that is part of the project assumes no password needed for db access.

Install adminpack to assist pgAdminIII

$ sudo apt-get install postgresql-contrib-9.1

$ sudo -u postgres psql < /usr/share/postgresql/9.1/extension/adminpack--1.0.sql

$ psql

postgres=# CREATE EXTENSION adminpack;

Install pgAdminIII

$ sudo apt-get install pgadmin3

Install Mercurial

$ sudo apt-get install mercurial

Install Aptana IDE

http://www.aptana.com/products/radrails

Install the Eclipse/Aptana MercurialEclipse plugin

Here's the update site:
http://cbes.javaforge.com/update

Install RVM

$ sudo apt-get update
$ sudo bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)
$ source ~/.rvm/scripts/rvm
$ rvm get head && rvm-smile
$ sudo apt-get install libtool
$ rvm pkg install libyaml
$ rvm install ruby-1.9.3-p194

$ rvm --default use 1.9.3

Install Rails

$ gem install rails -v 3.2.0
$ gem install execjs
$ gem install therubyracer

Install bundler

http://stackoverflow.com/questions/6438116/rails-with-ruby-debugger-throw-symbol-not-found-ruby-current-thread-loaderro

$ rvm get stable
$ rvm use ruby-1.9.3-p194@<gemset_name> --create
$ wget http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem
$ wget http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
$ gem install linecache19-0.5.13.gem
$ export RVM_SRC=$HOME/.rvm/src/ruby-1.9.3-p194
$ gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$RVM_SRC
$ gem install bundler --pre

Dude, where's my gemset?

If the .rvmc file for the project on which your working specifies a gemset that you don't have and/or that you didn't use to install the proper gems you can copy the one you did have setup to match the one specified in the file.  This is especially helpful if you want to use the Terminal in Aptana.

I needed to manually rerun the ruby debug installation because that failed during the copy.

$ rvm gemset list

$ rvm gemset copy 1.9.3-p194@<existing_gemset> 1.9.3-p194@<.rvms_gemset>

$ export RVM_SRC=$HOME/.rvm/src/ruby-1.9.3-p194
$ gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$RVM_SRC

Installing Linksys PCI wireless firmware on Ubuntu 11.10

Wireless card on vintage Gateway (2003) spotty after moving from XP to Ubuntu, but I dug through the old hardware bin, found a WPC54G PCI card and was able to get it up and running.

https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx

Show desktop shortcut in Ubuntu 10.10: Mod4+D (Windows+D)

This is a helpful Windows shortcut (Windows+M) I've been looking for on and off since starting to work with Ubuntu.  I just couldn't take it any more.
Ironically I should just have looked at the Keyboard Shortcuts dialog (System -> Preferences --> Keyboard Shortcuts).  Listed under the Window Management category, the action Hide all normal windows and set focus to the desktop: Mod4+D.  On my Dell D610 Mod4 is the Windows key.


Also by looking at Keyboard Shortcuts I've added several other shortcuts to my repertoire.


Here's the URL that finally tipped my off:
http://www.linuxquestions.org/questions/linux-software-2/about-the-show-desktop-button-in-gnome-447443/