After sometime without looking into this problem, I decided to do another try. I do not found a way to do a complex crossgrade of my desktop without massively removing packages. And there are bug and bug that require to edit the config scripts of the packages.

So here is my another try to do a crossgrade of my desktop, this time for real.

apt-get update
apt-get upgrade
apt-get autoremove
apt-get clean
dpkg --list > original.dpkg
apt-get --download-only install dpkg:amd64 tar:amd64 apt:amd64 bash:amd64 dash:amd64 init:amd64 mawk:amd64
for pack32 in $(grep i386 original.dpkg | egrep "^ii " | awk '{print $2}' ) ; do 
  echo $pack32 ; 
  apt-get --download-only install -y --allow-remove-essential ${pack32%:i386}:amd64 ; 
done
cd /var/cache/apt/archives/
dpkg --install libacl1_*amd64.deb libattr1_*_amd64.deb libapt-pkg5.0_*amd64.deb libbz2-1.0_*amd64.deb dpkg_*amd64.deb tar_*amd64.deb apt_*amd64.deb bash_*amd64.deb dash_*amd64.deb 
dpkg --install --skip-same-version *.deb
dpkg --configure --pending
dpkg --install --skip-same-version *.deb
dpkg --remove libcurl4-openssl-dev:i386
dpkg --configure --pending
dpkg --remove libkdesu5 kde-runtime
apt-get --fix-broken install
apt-get install  $(egrep "^ii"  ~/original.dpkg | grep -v ":i386" | grep -v "all" | grep -v "aiccu" | grep -v "acroread" | grep -v "flashplayer-mozilla" | grep -v "flash-player-properties" | awk '{print $2}')

Reboot.

Then the system failed to boot, missing lvm2 package.

Boot with a live CD.

sudo -i
mount /dev/sdc2         /mnt
mount /dev/vg100/usr /mnt/usr
mount /dev/vg100/var /mnt/var
mount -o bind /proc    /mnt/proc
mount -o bind /sys     /mnt/sys
mount -o bind /dev/    /mnt/dev
mount -o bind /dev/pts  /mnt/dev/pts
chroot /mnt /bin/su -
apt-get install lvm2
exit
reboot

Still somethings do not work, like command fakeroot.

for pack32 in $(grep i386 original.dpkg  | egrep "^ii " | awk '{print $2}' ) ; do     
  echo $pack32 ;     
  if dpkg --status $pack32 | grep -q "Multi-Arch: same" ; then       
    apt-get -y install ${pack32%:i386}:amd64 ;     
  fi ;   
done

for pack32 in $(grep i386 original.dpkg  | egrep "^ii " | awk '{print $2}' ) ; do     
  echo $pack32 ;     
  apt-get -y install ${pack32%:i386}:amd64 ;     
done

Now is time to find what still does not work and how to solve it.