Martin has made a change to apport in bug 1489410 that allows apport to work from devices where the apt lists do not exist. However, this will not help with the situation I've described in comment #29 (point release Live CDs). So I think this is still worth fixing.
Martin has made a change to apport in bug 1489410 that allows apport to work from devices where the apt lists do not exist. However, this will not help with the situation I've described in comment #29 (point release Live CDs). So I think this is still worth fixing.