Ubuntu: how to declare that you have full superuser permissions when prompted on terminal?



Question:

I am a very basic Ubuntu user. Everytime I am trying the terminal, I receive the following question and I do not know how to answer: Do you have full superuser (root) permissions? I want to configure the TV at home to send video via HDMI port. When I write "get-edid", the question appears. y, yes or -y do not work. I am the root and know the password.

I would like to learn how to say "yes" on Ubuntu?

Thank you in advance.

Miraç


Solution:1

You need sudo in front of the command get-edid. You are accessing hardware so it will need to issue commands that a normal user can not use.

This

get-edid | parse-edid  

will give ...

mmap /dev/zero: Operation not permitted  get-edid: error initialising realmode interface  get-edid: do you have full superuser (root) permissions?  

because the mmap /dev/zero needs root permissions.

sudo get-edid | parse-edid  

will show something similar to...

Performing real mode VBE call  Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0  Function supported  Call successful  

etc.


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