i.e. ethernet as well as wifi - without disconnecting ethernet cable!

the requirement is because the user is not familiar with networking and I don't want them plugging and unplugging cables.

@rockaddicted I cannot follow the last steps to enforce my own root password as @frankie842 managed to do.
I've even tried changing the recalbox-config.sh file in raspbian to set password lenght '-w8' to a greater length . 12 and 15. Both were ignored and in the recalbox graphical interface it still shows its small 8 character password.

@rockaddicted

Would you provide brief step-by-step instructions of how to change the ALL root passwords for recalbox latest version ? From Recalbox release: 17.12.02 (4.1) onwards to latest.

I can see the option under Advanced and when security set to 'on' a password is generated on reboot. But this is only a very short password! If the number of characters could be increased I'd be happy to stick with what it generates.

I have managed to create my own root password by editing the file /recalbox/scripts/recalbox-config.sh
The password then appears in the Recalbox Graphics Mode on the Pi .

But on F4 Alt + F2. Logging in is still possible with root and recalboxroot as commented on by @unik314r

(I have mounted -o remount,rw / And tried passwd with a previous version . 4.0.1 and thought the password was persistent on that occasion)

If I try to set the security back to 1 by editing the file from the pi with keyboard connected the password gets set to a random one again on reboot. My password is still in the file but not being used as far as I can tell - since F4 Alt + F2 and I need the generated one. Better than nothing - but easily crackable.

I'm using Linux and can ssh to the pi but unsure from there how I get my password working. This bit is lost in the conversation for me . @frankie842 obviously has solved the problem from your tip. But for me I need a small set of instructions to document the final process here. You do no need to document it all: I can add myself if I can follow the last step.