Use keytable 'us' instead of 'us.map.gz'.
Switch from obsolete package nfsidmap to libnfsidmap1 in SLE 15 SP6.
A new instance type is being introduced that requires this new console setting in order to have access to the serial console. Change the value as requested.
Use systemd-sysvcompat in SLE 15 SP6 instead of systemd-sysvinit (package rename).