I have the battery icon on my menu bar as part of the “Energy Saver” system preference which I use to control my UPS. Pulling and re-inserting the the USB cable to my UPS would make the battery icon magically re-appear.

However strangely (and annoyingly!) this would normally only survive about two reboots and then would disappear again ;-(

The solution which worked for me was to follow the usual first step advice when troubleshooting Mac problems….

1. Repair disk permissions
2. Download & install latest combo update package

This is the first time I’ve ever had to follow this procedure but it does seem to work!

I probably didn’t select it when I installed Xcode. U can find the individual package on the install disk 1…. go into folder “Xcode Tools” and then “Packages” and double click on X11SDK.pkg.

A good place to start is an article on Apple’s developers site…. Postgres on Mac OS X

However I’ll be using DarwinPorts (or MacPorts as its now known) instead of fink. In fact you may ask why don’t I just install the Darwin port of Postgres? When it comes to critical apps which are important to me I always prefer to use the source and therefore can apply any compilation settings that I may need.

Here’s the steps I went thru (via Terminal session). DarwinPorts being installed is a prerequisite….

First off u must become root. You can do this from an admin account with just “sudo -s“.

Next we must install some ports that Postgres will need….

    port install readline
    port install gmake
    port install bison


Then we need to create a /usr/local directory (mkdir /usr/local). Within this we need a “src” directory where we can download the Postgres source code to (cd /usr/local ; mkdir src ; cd src).

Download the latest stable PostgreSQL source from www.postgresql.org and unpack it…. gzcat postgres-source.tar.gz | tar xvf -

Now you in a position to compile the source code. Go into the Postgres directory that was unpacked and do the following steps….

    ./configure --with-includes=/opt/local/include/ --with-libraries=/opt/local/lib --with-bonjour
    gmake
    gmake install


PostgreSQL as now been compiled and installed. Next step is to initiate the database storage area. For this you will need to create a “postgres” account on your Mac. (If unclear then read instructions in the article on how to do this). Then do this…..

    mkdir /usr/local/pgsql/data
    chown postgres /usr/local/pgsql/data
    su -l postgres
    /usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data


We now have a fully working PostgreSQL RDBMS on your Mac.

Next you want to put the following in your login .profile (for the postgres account)….


    export PGDATA=/usr/local/pgsql/data
    export PATH=$PATH:/usr/local/pgsql/bin


If you now source this profile with you now have the Postgres commands in your $PATH ( . .profile ).

To start the Postgres DB server (postmaster) in the background….


    pg_ctl -l logfile start


and to stop it…..


    pg_ctl stop


You can now go ahead and create a database in PostgreSQL.

That’s it for now but will touch on security & auto launching at later date.