Comment 6 for bug 690248

This seems so reminiscent of bug 303578, and a bug I reported in March 2009 (329648), but back then ripping out yelp and the things that Synaptic decided were only there to support yelp (ubuntu-docs among the package removed when I uninstalled yelp),
then re-installing the packages and re-booting brought the About Ubuntu report to being correct. I'd fell a lot better if I understood how that worked out. Redoing those steps today on a 10.10 Maverick system (updated in November 2010 from a 10.04 system that had been installed from a distribution CD), the global.ent file still says its an 11.04 system. Puzzling is that lsb_release isn't mislead, but I didn't dig into source to find out where lsb_release is getting its information from.

The un-install takes away the "About Ubuntu" item from the "system" menu. Surprisingly asymmetrical, the re-install doesn't put that item back on the menu. That's done during the next reboot after the reinstall, I think.