I found out that extundel is abandoned.
ext4magic did the job.
sudo ext4magic /dev/sdb1 -M -d /mnt/FREE_SPACE
http://ext4magic.sourceforge.net/howto_en.html
Great tool!!
Restored everything including the paths...
If someone knows what he does - it is done in 10 min.
For me as a "copy...
In 12 years using ubuntu I never did something stupid like this:
It started that my trash bin did not work any more.
I found an instruction how to repair it:
sudo bash
cd ~/.local/share/trash
rm -r *.*
I was working and did bash copy paste it into terminal (on left monitor while I was working...