> Can't exec "/tmp/config.19501": Permission denied at > /usr/share/perl/5.8.0/IPC/Open3.pm line 159. > open2: exec of /tmp/config.19501 configure failed at > /usr/share/perl5/Debconf/ConfModule.pm line 44 > iptables failed to preconfigure, with exit status 255 Try setting TMPDIR. These files are created by debconf, which imho, should honour that environment variable.