EnableProposed
To enable the proposed archive for hardy add the following line to /etc/apt/sources.list:
{{{deb http://archive.ubuntu.com/ubuntu/ hardy-proposed restricted main multiverse universe }}}
or go to System -> Administration -> Software sources and tick the hardy-proposed box under the updates tab.
Enable Apport
When running proposed it is also useful to enable Apport bug filing to capture and report crashes. You can enable Apport on a stable system with:
{{{gconftool -s /apps/update-notifier/show_apport_crashes --type bool true }}}
Since Hardy, Apport also needs to be enabled in /etc/default/apport, edit this file and change enabled to 1.
To test that Apport is now running, enter the following command to cause a simple crash and generate a crash file in /var/crash: {{{sh -c 'kill -SEGV $$' }}}
This should notify about the crash and offer you to submit it to Launchpad. Click on 'Report' and verify that the details look complete (package name and version, has a (broken) stack trace, etc.). Please do not actually send it to Launchpad, though, since it is not a genuine bug.
Uploading your hardware profile
To help us track the hardware test coverage, please upload your hardware profile for the system you will run proposed on using the hardware profile tool, found in the Application -> System Tools menu or with the command hwdb-gui.