Thomas C., the fix for Lucid was already released. You just need to update to version 2.7.STABLE7-1ubuntu12.2 from your current version 2.7.STABLE7-1ubuntu12 as suggested by apt (see Installiert and Kandidat lines).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/573853 Title: Cannot control squid "Unknown instance" -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs