found the problem, nothing wrong with Ubuntu. my HHD had bad sectors. thanks for your help :)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1162127 Title: unable to install updates or applications and all apps have disapeared To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1162127/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
