I wanted to install openoffice.org 1:3.0.1-7~bpo50+1 from
lenny-backports/main to replace version 1:2.4.1-17+b1 provided by
lenny/main.
First, I added lenny-backports to /etc/apt/sources.list and then ran
"aptitude update". I decided to use pinning in order to give
priority to
the later verson. In accordance with the pinning instructions
provided
on the backports instructions page, I created file /etc/apt/
preferences
with the following content:
Package: openoffice.org
Pin: release a=lenny-backports
Pin-Priority: 990
When I ran "aptitude upgrade" openoffice.org 3 was not installed, and
the following error was returned: