In my report I think the key There were not files in /var/lib/dpkg/info/ for libc6:i386, only for libc6 (ie /var/lib/dpkg/info/libc6.list existed but /var/lib/dpkg/info/libc6:i386.list did not).
I created the /var/lib/dpkg/info/libc6:i386.list file from the contents of the downloaded deb package using: dpkg-deb -c /var/cache/apt/archives/libc6_2.15-0ubuntu10.5_i386.deb | awk {'sub(/^\./,"",$6);sub(/^\/$/,"/.",$6); sub(/\/$/,"",$6); print $6'} > /var/lib/dpkg/info/libc6:i386.list After this 'apt-get install -f' run correctly and the libc6 package was upgraded. Then the rest of the package upgrades were done via aptitude. The mention of libc6:i386 suggests that the problem maybe linked to multiarch, but I can not be sure. I also suggest that copying /var/lib/dpkg/info/libc6.list to /var/lib/dpkg/info/libc6:i386.list might also work temporarily. So fixed for me for the moment. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/980573 Title: apt-get fails at libc6 upgrade with "A copy of the C library was found in an unexpected directory" error message To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/980573/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs