I'll try to explain the bug again. At the beginning of the installation, YaST basically does the following: mkfs.btrfs <device> ... [...] /usr/lib/snapper/installation-helper --step 1 /mnt ... ^ This fails. Ignored. /usr/lib/snapper/installation-helper --step 2 /mnt ... ^ This fails. Ignored. [...] Download and install packages into /mnt. Do some configuration in /mnt. Install the bootloader. [...] At the end, YaST does /usr/lib/snapper/installation-helper --step 3 /mnt ... ^ This fails. Ignored. /usr/lib/snapper/installation-helper --step 4 /mnt ... ^ This fails. Ignored. chroot /mnt snapper --no-dbus set-config KEY=value ^ This fails. Not ignored. There is no error message at all about any failed calls to installation-helper.