debian/e2fsprogs.mkinitrd

#!/bin/sh
ext3root=`grep -v '^ *#' /etc/fstab | awk '{ if (($2 == "/") && ($3 == "ext3")) {print $1;}}'`
if test -n "$ext3root" ; then
    /sbin/tune2fs -O has_journal $ext3root > /dev/null
fi