Thank you for your help. I still wonder what causes this error message :
"chmod etc/sysconfig/tcedir/xwbar.lst: Operation not permitted".
I get this during boot, after the extensions are loaded.
The sda1 disk in my Qemu session is a FAT disk. Can this cause the chmod error?
Finally I try to enter in the terminal window:
"loadkmap < /usr/share/kmap/qwertz/de-latin1.kmap"
This returns without error, but the keyboard stays US. What needs to be done here? I tried it as user tc and root, same result.