Known Lucid Lynx issues/bugs with workarounds : UF post

For every release, the ubuntuforums Staff pulls together a thread to keep all in one place most common upgrade bugs and workarounds.

For Lucid Lynx, here it is: http://ubuntuforums.org/showthread.php?t=1469475
Thanks philinux!

You can also Share with the community your Lucid Lynx install/upgrade experience thanks to frodon :)

I had kept a Sony Vaio laptop (VGN-C2S series with intel everything) running on Hardy to test the upgrade to Lucid with update-manager. Worked fine, aside from a flashplugin-nonfree problem that broke apt-get/aptitude.
The workaround is listed at the top of the post, as it can be a real stopper for new users :

sudo rm /var/lib/dpkg/info/flashplugin-nonfree.prerm
sudo dpkg --remove --force-remove-reinstreq flashplugin-nonfree
sudo dpkg --purge --force-remove-reinstreq flashplugin-nonfree

(found in an older bug report).
The bug will not prevent a reboot after the install and can be fixed later on.