I have also noticed this issue in guest sessions on the Lucid 32-bit Desktop installation. When attempting to run Chromium from a terminal the following output is given:
guest@custard:~$ chromium-browser
Failed to move to new PID namespace: Operation not permitted
The only workaround I have found so far is to re-install Firefox for guest session browsing. If you need any more information, please just ask.
I have also noticed this issue in guest sessions on the Lucid 32-bit Desktop installation. When attempting to run Chromium from a terminal the following output is given:
guest@custard:~$ chromium-browser
Failed to move to new PID namespace: Operation not permitted
The only workaround I have found so far is to re-install Firefox for guest session browsing. If you need any more information, please just ask.