while debugging script /usr/share/debconf/confmodule i see output of line echo 'Adding SV inittab entry...' from /var/lib/dpkg/info/runit.postinst in variable _db_internal_line: "20 Unsupported command "adding" (full line was "Adding SV inittab entry...") received from confmodule."
i do not understand why it happens but removing this line corrects the situation. patch is attached.
diff -Naur old/runit.postinst new/runit.postinst --- old/runit.postinst 2010-06-02 14:20:46.000000000 +0000 +++ new/runit.postinst 2010-06-02 14:23:36.000000000 +0000 @@ -35,7 +35,6 @@ fi if ! grep '^SV:' /etc/inittab >/dev/null; then - echo 'Adding SV inittab entry...' cp /etc/inittab /etc/inittab'{new}' cat >>/etc/inittab'{new}' <<-\EOT #-- runit begin