First download Postgres and PostGIS from here and the additional frameworks GEOS and PROJ from here and install them in the following order

• PostgreSQL
• GEOS
• PROJ
• PostGIS

After you ensured you have a working PostgreSQL (default install directory is  /usr/local/pgsql/) and PostGIS, continue to the next steps. Note: If you get errors on non-existing role, use the option -U postgres for the following commands.

createdb [yourdatabase]

The next step before creating the PostGIS database is to enable PLSQL.

createlang plpgsql [yourdatabase]

Now load the PostGIS object and function definitions (usually located in /usr/local/pgsql/share/contrib).

psql -d [yourdatabase] -f postgis.sql

For a complete set of EPSG coordinate system definition identifiers, you can also load the spatial_ref_sys.sql definitions file and populate the spatial_ref_sys table. This will permit you to perform ST_Transform() operations on geometries.

psql -d [yourdatabase] -f spatial_ref_sys.sql

After that your postgres and postgis installation is complete. Now we can configure our rails environment. First of all install the GeoRuby and Spatial Adapter gem.

sudo gem install GeoRuby
sudo gem install spatial_adapter

or simply add following lines to your environment.rb

config.gem "GeoRuby", :lib => "geo_ruby"
config.gem "spatial_adapter"

and run

sudo rake gems:install

From now on, you are ready to use special geo column types (like point, line string, polygon, ...) within your database and also a corresponding active record object types. For example you will be able to create your database tables like the following

create_table :places do |t|
   t.point :location, :null => false, :srid => 4326
   t.string :address
   t.timestamps
end

and within your application you are able to work with geo data as you can see in this code snippet

place = Place.new (
  :location => Point.from_x_y(-1.0, 2.0, 4326),
  :address => "My home is my castle"
)
...
place = Place.find(:all).first
puts place.location.x
puts place.location.y
...

Enjoy,
J.

References:
[1] Using Postgis, http://postgis.refractions.net/docs/ch04.html
[2] spatial_adapter, http://github.com/fragility/spatial_adapter
[3] GeoRuby, http://georuby.rubyforge.org/georuby-doc/index.html

After unboxing I started the upgrade process, and as there of course were some minor complications I will outline the detailed steps here.

1. Go to the HTC Page and download the newest Radio and Recovery Image, place them wherever you want just be sure they stay the zip they are meant to be.

2. Connect your Android Phone to your Mac and do not mount the SD Card.

3. Check if your device is connected by using

adb devices

4. Copy the Radio image to the SD Card by using

adb push <radioimagename>.zip /sdcard/update.zip

5. Be sure it is copied by using

adb shell sync

after this is returned everything is done.

The next step is to turn your Phone of by holding down the power button. After its turned of hold down the home button and turn it on again. Some moments after the android sign a ! accompanied by a triangle should appear now your are in recovery mode. Slide out the keyboard and press ALT + L, you now should see the recovery console. Now press ALT + S and you should see some command verifying the package etc… and a progress bar. After that press the Home and Back button (just press do not hold) to reboot the device, note only if you do exactly so the new radio image will be installed. It will display another Image (arrow and a chip) and reboot the system to normal mode after it is done.

Now you are half way through just repeat the steps above with the Recovery Image and you are done