On Mantic this would throw out an error

Failed to restart sshd.service: Unit sshd.service not found

packages/bsp/common/usr/lib/armbian/armbian-firstrun

@@ -59,7 +59,7 @@ case "$1" in
 	rm -f /etc/ssh/ssh_host*
 	read entropy_before </proc/sys/kernel/random/entropy_avail
 	dpkg-reconfigure openssh-server >/dev/null 2>&1
-	service sshd restart
+	service ssh restart
 	read entropy_after </proc/sys/kernel/random/entropy_avail
 	echo -e "\n### [firstrun] Recreated SSH keys (entropy: ${entropy_before} ${entropy_after})" >>${Log}