Knoppix newbie here coming from pre-systemd background on CentOS 6.

I've got 7.7.1 installed on a USB thumb drive and it boots just fine. However typical systemd tools don't seem to work.

Something as simple as
Code:
sudo systemctl list-units
fails with
Code:
No such method 'ListUnitsFiltered'
. However, I do see some systemd processes running.

What exactly is the init vs systemd status in Knoppix 7.7.1? Is most everything run from
Code:
/etc/init.d
? Some network-related things in
Code:
/etc/init.d
also seem to not work, such as
Code:
/etc/init.d/networking restart
. It gives a deprecation warning but doesn't actually do anything to the network.

Feeling confused...