First you need to hold that packages by:
apt-mark hold e2fsprogs && apt-mark hold libss2
Then you ned to modificate /usr/sbin/apticron, find
PKGNAMES=`/usr/bin/apt-get -q -y --allow-unauthenticated -s dist-upgrade | \
/bin/grep ^Inst | /usr/bin/cut -d\ -f2 | /usr/bin/sort`
and
if [ -n "$PKGNAMES" ] ; then
# do the upgrade downloads
/usr/bin/apt-get -qq -d --allow-unauthenticated --force-yes dist-upgrade > /dev/null
(
and remove --ignore-hold from that.
I know its not best solution, but worked for me.