https://userapps.support.sap.com/sap/support/knowledge/en/3498345
3498345 - LNX: 'SysV service '/etc/init.d/sapinit' lacks a native systemd unit file | SAP Knowledge...
The dmesg log includes warnings regarding sapinit: systemd-sysv-generator[xxxxx]: SysV service '/etc/init.d/sapinit' lacks a native systemd unit file....