GrenXPaRTa

File: //lib/systemd/system/dnf-system-upgrade-cleanup.service

[Unit]
Description=System Upgrade using DNF failed
DefaultDependencies=no

[Service]
Type=oneshot
# Remove the symlink if it's still there, to protect against reboot loops.
ExecStart=/usr/bin/rm -fv /system-update
# If anything goes wrong, reboot back to the normal system.
ExecStart=/usr/bin/systemctl --no-block reboot