Ubuntu 16.04でアップデートに失敗する

自宅にあるSoftEtherなUbuntu 16.04をアップデートしたら、以下のようなメッセージが出て失敗しました。

update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
insserv: warning: script 'S20vpnserver' missing LSB tags and overrides
insserv: warning: script 'vpnserver' missing LSB tags and overrides
insserv: There is a loop between service plymouth and mountdevsubfs if started
insserv:  loop involving service mountdevsubfs at depth 2
insserv:  loop involving service udev at depth 1
insserv: There is a loop at service plymouth if started
insserv: Starting vpnserver depends on plymouth and therefore on system facility `$all' which can not be true!
insserv: Starting vpnserver depends on plymouth and therefore on system facility `$all' which can not be true!
insserv: Starting vpnserver depends on plymouth and therefore on system facility `$all' which can not be true!
以下続く・・・

どうやら原因はsystemd周り？のようで、対処法は

起動スクリプトの

# chkconfig: 2345 99 01
# description: SoftEther VPN Server

なところを

# Provides : vpnserver
# Required-Start :
# Required-Stop :
# Default-Start : 2 3 4 5
# Degault-Stop : 0 1 6
# Description : SoftEther VPN Server

にすればOKです。

早速WiKiに反映しておこう・・・