How to activate networking with systemd?

[Volker Wysk]

Hi

How do you start networking when you're in rescue mode? It should be
just networking, and nothing else.

I've done some googling, but it was only confusing.

I figure that this is probably just a simple command. If it isn't, then
I'll have to do more reading.

I need it for backups of my laptop. I log out of the graphical
environment, do "systemctl isolate multi-user.target" and "systemctl
isolate rescue.target" (in a virtual console). Then I start my backup
script (which makes use of dar) and it is supposed to copy the finished
backup to the external hard disk connected to my desktop.

I want to do the backup in rescue mode to avoid inconsistencies. The
system as a whole is supposed to be recoverable from the backup.

So, is this an easy question?  ;-)

Cheers,
Volker