Comment 29 for bug 8732

The problem was demonstrated with dpkg, so it is not an apt issue. It's likely
either a debconf or dpkg problem. We'll need a complete strace to find out
what's going wrong.

sudo strace -f -o /tmp/dpkg.strace dpkg -i <path to .deb which reproduces the
problem>

and attach /tmp/dpkg.strace