Change PostgreSQL 9 source for Ubuntu Lucid users.

Currently, Ubuntu Lucid does not have backport options for PostgreSQL 9.
Instead, most community members who use Lucid have been using
Martin Pitt's PPA as an external repository source.
Signed-off-by: Ben Shum <bshum@biblio.org>

Signed-off-by: Dan Scott <dscott@laurentian.ca>

diff --git a/README b/README
index bd1a6cb..02d1096 100644 (file)
--- a/README
+++ b/README
@@ -87,12 +87,16 @@ before you can successfully configure, compile, and install Evergreen.
 deb http://backports.debian.org/debian-backports squeeze-backports main contrib
 ------------------------------------------------------------------------------
 +
-  * On Ubuntu Lucid, open `/etc/apt/sources.list` in a text editor as the
-    *root* Linux account and add the following line:
+  * On Ubuntu Lucid, you can use a PPA (personal package archive), which are 
+  package sources hosted on Launchpad. The one most commonly used by Evergreen Community 
+  members is maintained by Martin Pitt, who also maintains the official PostgreSQL 
+  packages for Ubuntu. As the *root* Linux account, issue the following commands 
+  to add the PPA source:
 +
 [source, bash]
 ------------------------------------------------------------------------------
-deb http://archive.ubuntu.com/ubuntu lucid-backports main universe multiverse restricted
+apt-get install python-software-properties
+add-apt-repository ppa:pitti/postgresql
 ------------------------------------------------------------------------------
 +
   * Fedora 15 comes with PostgreSQL 9, so no additional steps are required.