Can't reboot to change password because I need the password to reboot.

Asked by kittie cortez on 2012-06-15

(all my questions are after the other) So I asked another question yesterday, and I thought it would finally be the answer to this whole problem but seems I have another problem. These are the great instructions I was following:


I tried to access the screen to reboot by pressing SHIFT while the computer is booting, and I didn't get any results..nothing I tried it aout 5 times.

I read that you can also press ESC while the computer is booting, and result was I just got really fast text in black and white pass before my eyes and then....back to the login screen.

I also read that I can type "sudo reboot" into the Terminal and I did that however when I did it asks for a password...which is my problem so it doesn't help.

I have no idea what I can do..feels like a dead end....if anyone has an idea how I can finally change my password without needing a password!!!...please it is much appreciated Thank you.

Every question I ask I get an answer that is so close..yet so far (-_-) help....

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You could always boot to liveCD then chroot and run commands there.

I did some research on what you mean by live CD and found this:

So I am assuming liveCD is the Ubuntu CD. I don't know what you mean by chroot....if you want to explain it's much appreciated or I can do more research.

The Ubuntu Cd I have is version 11.0 something and I now have Ubuntu 12.4 so can I still use that 11.0 something Cd or should I get one that is 12.4?

After the chroot command, run:

passwd foo

And you will be able to change the password on the installed OS

to reboot you can press ctrl +alt + f1 to switch to a pseudo terminal then press (to reboot)

ctrl +alt + del

Irfaan (irfaan-ely786) said : #5

I need help to reboot my webbook I don't know my password and they ask me for "authenticate to modify the system configuration"

sudo reboot

and it will reboot

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