Just to clarify @tonystarkpe's recipe (#9), you only need to run this one command to uninstall enough of cinnamon to enable the 14.04 upgrade to proceed:
sudo apt-get purge --auto-remove cinnamon
(The first part referred to ppa-purge--which initially looked interesting--but it won't work because the old ppa has been taken down. The last is redundant because the --auto-remove flag should cover that. Thanks, btw, @tonystarkpe!)
Just to clarify @tonystarkpe's recipe (#9), you only need to run this one command to uninstall enough of cinnamon to enable the 14.04 upgrade to proceed:
sudo apt-get purge --auto-remove cinnamon
(The first part referred to ppa-purge--which initially looked interesting--but it won't work because the old ppa has been taken down. The last is redundant because the --auto-remove flag should cover that. Thanks, btw, @tonystarkpe!)