Problem was caused by undetected HD errors. ran several disk scans to get rid of bad sectors and reinstalled from update.
** Changed in: eglibc (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/475581 Title: package libc6 2.9-4ubuntu6.1 failed to install/upgrade: package libc6 is already installed and configured -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs