Update: I tried the following iso images:
a) the official Debian Buster Live DVD with KDE image at https:// cdimage.debian.org/cdimage/release/current-live/amd64/iso-hybrid/debian- live-10.0.0-amd64-kde.iso => Running this image live results at the end of the loading process from DVD in a console prompt. No graphical environment is shown. It seems to make no sense to install this image to the hard drive. b) the unofficial Debian Buster Live DVD with non-free packages and KDE at https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/ current-live/amd64/iso-hybrid/debian-live-10.0.0-amd64-kde+nonfree.iso => Running this image live results at the end of the loading process from DVD in displaying KDE. From there, if you install Debian Buster on the hard drive running the graphical installation program you are not asked in that program to enter the password for user root, only for the normal user. This results in an installation in which you do not know the password for user root. Regards, Jens
