On 25/04/2017 15:31, Álvaro Jurado wrote:
> My mstake was forgetting that "su -" is not "su". So I thought I was on
> the right dir and...

Not for quite the same reason, but on all my machines I've taken to 
creating a home directory for root that isn't / for the last couple of 
decades.

-- 
Pete
Pete Turnbull