I'm not sure if it was possible on 7.x or 8.x ... but I would NOT try something like that ....frogprince wrote: And in single mode remove root user and add a new one."
How on earth can one remove and replace the root user? I tried
eventually, I would use the commands rmuser and adduser ... pw man page is unreadable by humans
Can you try to simply change the root's password ?
Or may be add a new user ?
If changing the password doesn't work, try a rollback;
if that fails too ... reinstall