sudo issues

[Doormat]

I can no longer sudo when it asks for my password I input it and nothing happens, when I type su and then try to put in my password it has an authentication error. What do I do?

[Joeb454]

When you enter your password for sudo it will never show any input, this is normal

Just enter your password (making sure you type it correctly of course ) and hit enter. That's it

[thiebaude]

After you type in your password, do you press enter?

[Wazoot]

yup just hit enter when your done typing your password and it should take it!
I was in your position once lol. Took me forever to figure it out =]

~Waz00t

[Doormat]

if I type sudo fdisk -l it will ask for my password, I enter it and hit enter and nothing happens then I tried to su and then use fdisk but I could not su (see above). I know this is the correct password is there any way to reset my password perhaps?

[Joeb454]

Hmm, sounds a bit odd.

What happens if you do

sudo aptitude update

Does it do anything then?
Just for the record - that will basically check to see if there are any system updates

[Doormat]

nothing happens

[Doormat]

issue solved: booted into recovery mode and:
adduser username admin

booted normally and sudo works