after waiting about 2 weeks for any solution to be proposed I tried on my own the following I searched the 60 files in the directory /var/lib/apt/lists which had among them the following 4 files: archive.canonical.com_ubuntu_dists_jaunty_partner_binary-i386_Packages archive.canonical.com_ubuntu_dists_jaunty_partner_source_Sources archive.ubuntu.com_ubuntu_dists_jaunty_main_source_Sources archive.ubuntu.com_ubuntu_dists_jaunty_restricted_source_Sources These files seemed strange (firstly due to their html icon) and later when I opened them with text editor I saw that they had as content the default page of my router when I don't have Internet connection. I don't know how it was stored there!!!
I deleted them with sudo rm fille_name that seemed to work the update manager started correctly proposed the updates/upgrades and when I pressed install it frozen finally I did it manually: sudo apt-get update -f sudo apt-get update sudo apt-get upgrade after many restarts!!! my system works but the update manager gets stucked / frozen / stops working when I press Check button I don't know if that is a local problem or a problem of similar applications (synaptip/packagekit/update manager) or any other related application. I also don't know if the above described is a solution that can work for anybody or just a mumbo jumbo of mine. -- update-manager: "Could not initialize the package information" https://bugs.launchpad.net/bugs/410131 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs