Here's the init changes (ADRIANE 6.7). Among other things, ext4 mounting is now in place.
Also, the kernels, both 32 and 64 bits, have grown a lot - probably heaps of extra modules included as deemed necessary.

Code:
";;
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< # (C) 2011 by Klaus Knopper <knoppix@knopper.net>
---
> # (C) 2010 by Klaus Knopper <knoppix@knopper.net>
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<  local rc="1"
<  # Try to be quick, and probe the "most likely" file systems first
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<      mount -t ext4 -o "$RW" "$1" "$2" || \
<       mount -t ext3 -o "$RW" "$1" "$2" || \
<        mount -t ext2 -o "$RW" "$1" "$2"
<  rc="$?"
<  # Still no luck? Try everything else that the (static) kernel supports
<  if [ "$rc" != 0 ]; then
<   local fs
<   for fs in `awk '!/^nodev/{print $1}' /proc/filesystems 2>&1`; do
<    case "$fs" in
<     ext[234]|reiserfs|ntfs|fuse*|*fat|iso9660) ;; # Already did that
<     *) mount -t "$fs" -o "$RW" "$1" "$2"; rc="$?";;
<    esac
<    [ "$rc" = "0" ] && break
<   done
<  fi
<  return "$rc"
---
>      mount -t ext3 -o "$RW" "$1" "$2" || \
>       mount -t ext2 -o "$RW" "$1" "$2"
>  return "$?"
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<   [ -r "$mod" -a ! -d /sys/module/"${mod%.ko}" ] && insmod "$mod" >/dev/null 2>&1
---
>   [ -r "$mod" -a ! -d /sys/module/"${mod%.ko}" ] && insmod "$mod"
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<  *\ vga=[0-9]*|*debug*|*\ splash*) true;; *) echo -n "";;
---
>  *\ vga=[0-9]*|*debug*|*\ splash*) true;; *) echo -n "";;
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< message \
< '     _    __  __    __  _____    _____    _____    __  _  __      ___   _______
<     / /  / / /  |  / / / ___ \  / __  \  / __  \  / / | |/ /    / ___/  \___  /
<    / /__/ / /   | / / / /  / / / /__/ / / /__/ / / /  \   /    / /_      __/ /
<   / / _ -  / /| |/ / / /  / / / _____/ / _____/ / /   /  |    / __ \    /_  _\
<  / /  \ \ / / |   / / /__/ / / /      / /      / /   / /\ \  / /_/ / _   / /
< /_/   |_|/_/  |__/  \_____/ /_/      /_/      /_/   /_/ |_|  \____/ /_/ /_/'
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< #@@@GvR
<     # Try using other (SMB) mounts
<     [ -z "$MOUNTED" ] && [ -x /static/mount.cifs ] && { if [ -n "$NFSDIR" ]; then
<         message -n "${CRE}${BLUE}Trying to SMB mount CD on ${MAGENTA}$NFSDIR${BLUE}...${NORMAL}"
<         message   /static/mount.cifs "${NFSDIR}" /mnt-system -r -o guest,noserverino,nounix
<                   /static/mount.cifs "${NFSDIR}" /mnt-system -r -o guest,noserverino,nounix > /dev/null 2>&1  && MOUNTED="yes"
<         [ -z "$MOUNTED" ] && umount /mnt-system > /dev/null 2>&1
<     fi; }
< #@@GvR
---
> 
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<   checkbootparam "bootfrom" || debugshell
---
>   debugshell
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< # Return existing device names listed as regular expressions
< listpartitions(){
<  local pattern file
<  for pattern in "$@"; do
<   for file in $(find /sys/class/block -maxdepth 2 -name "$pattern"); do
<    file="${file##*/}"
<     [ -b "/dev/$file" ] && echo "/dev/$file"
<   done
<  done
< # awk 'BEGIN{old="__start"}/'"$1"'/{if($0==old){exit}else{old=$0;if($4&&$4!="name"){print "/dev/"$4}}}' /proc/partitions # Insufficient, does not find CD-Roms
< }
< 
< #@@@GvR Bootfrom Section start
< BOOTSYS="/mnt-system"   
< if [ ! -r "$BOOTSYS/$knoppix_dir/KNOPPIX" ]; then
<  # find BOOTFROM variable (/dev/sda1/boot/k620/*.iso)
<  BOOTFROM=""; bootfrom="";
<  for i in $CMDLINE; do case "$i" in [Bb][Oo][Oo][Tt][Ff][Rr][Oo][Mm]=*) eval $i;; esac; done
<  [ -n "$bootfrom" ] && BOOTFROM="$bootfrom"
<  if [ -n "$BOOTFROM" ]; then
<   # we may have an ISO file, try mounting it
<   BOOTISO="/mnt-iso"; BOOTDEV=""; BOOTFILE=""
<   mkdir -p $BOOTISO $BOOTSYS
<   [ -b /dev/loop1 ] || mknod -m 755 /dev/loop1 b 7 1
<   if [ -n "$NFSDIR" ]; then
<    umount $BOOTSYS; MOUNTED=""
<    message nfs remount "${NFSDIR}" "${BOOTISO}" -o ro,rsize=8192,wsize=8192,hard,nolock,intr$SECUREOPTIONS 
<    mount "${NFSDIR}" "${BOOTISO}" -o ro,rsize=8192,wsize=8192,hard,nolock,intr$SECUREOPTIONS > /dev/null 2>&1 && MOUNTED="yes"
<    if [ -z "$MOUNTED" ]; then
<     umount $BOOTISO >/dev/null 2>&1
<     if [ -x /static/mount.cifs ]; then
<      message cifs remount "${NFSDIR}" "${BOOTISO}" -r  -o guest,noserverino,nounix
<      /static/mount.cifs   "${NFSDIR}" "${BOOTISO}" -r  -o guest,noserverino,nounix > /dev/null 2>&1  && MOUNTED="yes"
<      [ -z "$MOUNTED" ] && umount $BOOTISO > /dev/null 2>&1
<     fi
<    fi
<    BOOTFILE=$BOOTFROM
<   else
<    BOOTDEV=$(echo "$BOOTFROM" | awk -F/ '{print $1"/"$2"/"$3}')
<    BOOTFILE="${BOOTFROM#*/}"; BOOTFILE="${BOOTFILE#*/}"; BOOTFILE="${BOOTFILE#*/}"
<    message -n "${CRE}${BLUE}Trying to mount the ISO partition ${MAGENTA}$BOOTDEV${BLUE}...${NORMAL}"
<    trymount "$BOOTDEV" "$BOOTISO" >/dev/null 2>&1
<   fi
<   if [ ! -r "$BOOTISO/$BOOTFILE" ]; then umount $BOOTISO >/dev/null 2>&1
<    message "${CRE}${RED}Cannot mount the partition ${MAGENTA}$BOOTDEV${NORMAL} (cannot find: ${RED}${BOOTISO}/${BOOTFILE}${NORMAL})"
<    ls -al "$BOOTISO"
<   else
<    message -n "${CRE}${BLUE}Trying to mount CD image on ${MAGENTA}${BOOTFILE}${BLUE}...${NORMAL}"
<    losetup /dev/loop1 "$BOOTISO/$BOOTFILE" && mount -r /dev/loop1 $BOOTSYS >/dev/null 2>&1
<    if [ ! -r "$BOOTSYS/$knoppix_dir/KNOPPIX" ]; then umount $BOOTSYS >/dev/null 2>&1
<     message -n "${CRE}${RED}Cannot mount CD image on ${MAGENTA}${BOOTFILE}${NORMAL}"
<     umount "$BOOTSYS" >/dev/null 2>&1
<     losetup -d /dev/loop1 >/dev/null 2>&1
<    else
<     message -e "\r${CRE}${GREEN}$DISTRO ${FOUNDAT}: ${MAGENTA}${BOOTDEV}/$(cd $BOOTISO; ls -a $BOOTFILE)${NORMAL}       "
<    fi 
<   fi
<   # try to find ISO in an alternate locations using the same path
<   if [ ! -r "$BOOTSYS/$knoppix_dir/KNOPPIX" ]; then
<    message -n "${CRE}${MAGENTA}Trying to find the ISO image in an other partition...${NORMAL}"
<    # If USB storage device, wait for USB...
<    if [ -d /sys/bus/usb/drivers/usb-storage ]; then WUSB="1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20"; else WUSB="1"; fi
<    for i in $WUSB ; do
<     for BOOTDEV in $(listpartitions 'hd[a-z]' 'hd[a-z][0-9]*' 'scd[0-9]*' 'sr[0-9]*' 'sd[a-z]' 'sd[a-z][0-9]*'); do
<      if [ -b "$BOOTDEV" ]; then
<       message -n -e "\r${CRE}${BLUE}Searching for ISO in: ${MAGENTA}${BOOTDEV}${NORMAL}   "
<       trymount "$BOOTDEV" "$BOOTISO" > /dev/null 2>&1
<       if [ ! -r "$BOOTISO/$BOOTFILE" ]; then umount $BOOTISO >/dev/null 2>&1; else
<        message -n "${CRE}${BLUE}Trying to mount CD image on ${MAGENTA}${BOOTFILE}${BLUE}...${NORMAL}"
<        losetup /dev/loop1 "$BOOTISO/$BOOTFILE" && mount -r /dev/loop1 $BOOTSYS >/dev/null 2>&1
<        if [ ! -r "$BOOTSYS/$knoppix_dir/KNOPPIX" ]; then
<         umount $BOOTSYS >/dev/null 2>&1
<         losetup -d /dev/loop1 >/dev/null 2>&1
<        else
<         message -e "\r${CRE}${GREEN}$DISTRO ${FOUNDAT}: ${MAGENTA}${BOOTDEV}/$(cd $BOOTISO; ls -a $BOOTFILE)${NORMAL}       "
<        fi
<       fi
<      fi
<     done
<     if [ -r "$BOOTSYS/$knoppix_dir/KNOPPIX" ]; then
<      break
<     else
<      message -n -e "\r${CRE}${BLUE}${WAITFORUSB}${NORMAL} $i ";
<      sleep 1
<     fi
<    done
<   fi
<  fi
< fi
< if [ -r "$BOOTSYS/$knoppix_dir/KNOPPIX" ]; then MOUNTED="yes"; FOUND_KNOPPIX="true"; fi
< #@@@GvR Bootfrom Section end
< 
< 
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< amount=$(awk -F: '/^MemTotal/{printf "%d",int($2); exit 0}' /proc/meminfo 2>/dev/null); #'
---
> amount=$(awk -F: '/^MemTotal/{printf "%d",int($2); exit 0}' /proc/meminfo 2>/dev/null)
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< #@@@GvR add "ramdisk" parameter to allow specifying ramdisk size, otherwise just use max(ram*4/5,2000)M
< for i in $CMDLINE; do case "$i" in [Rr][Aa][Mm][Dd][Ii][Ss][Kk]=*) eval $i;; esac; done
< case "$ramdisk" in
<  [0-9]*[KMG]) RAMDISK="$ramdisk" ;;
< esac
< if [ -z "$RAMDISK" ]; then
<  if [ "$TOTALMEM" -ge 2000 ] >/dev/null 2>&1; then
<    RAMDISK="$(expr $TOTALMEM / 5)"; RAMDISK="$(expr $RAMDISK \* 4)M"
<  else
<    # Too large, but we can still use swapspace
<    RAMDISK="2G"
<  fi
< fi
< #@@@GvR
---
> # Return existing device names listed as regular expressions
> listpartitions(){
>  local pattern file
>  for pattern in "$@"; do
>   for file in $(find /sys/class/block -maxdepth 2 -name "$pattern"); do
>    file="${file##*/}"
>     [ -b "/dev/$file" ] && echo "/dev/$file"
>   done
>  done
> # awk 'BEGIN{old="__start"}/'"$1"'/{if($0==old){exit}else{old=$0;if($4&&$4!="name"){print "/dev/"$4}}}' /proc/partitions # Insufficient, does not find CD-Roms
> }
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< if [ -z "$FOUND_KNOPPIX" -a -z "$TSCLIENT" ]; then
---
> if [ -z "$TSCLIENT" ]; then
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< mount -t tmpfs -o size="$RAMDISK",dev,suid,exec tmpfs /ramdisk
---
> mount -t tmpfs -o size=2G,dev,suid,exec tmpfs /ramdisk
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<  [ -r /KNOPPIX/lib/ld-linux.so.2 -a -x /KNOPPIX/"$cmd" ] && /KNOPPIX/lib/ld-linux.so.2 --library-path "/KNOPPIX/lib:/KNOPPPIX/usr/lib:/KNOPPIX/lib/i386-linux-gnu" /KNOPPIX/"$cmd" "$@"
---
>  [ -r /KNOPPIX/lib/ld-linux.so.2 -a -x /KNOPPIX/"$cmd" ] && /KNOPPIX/lib/ld-linux.so.2 --library-path "/KNOPPIX/lib:/KNOPPPIX/usr/lib" /KNOPPIX/"$cmd" "$@"
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<  for base in $home /mnt-system/"$knoppix_dir"/knoppix-data /mnt-system/knoppix; do
---
>  for base in /mnt-system/"$knoppix_dir"/knoppix-data /mnt-system/knoppix; do