Failure on installing htop on the server

Question

I'm trying to install htop on my server (ubuntu 14.04). Here is the command:

sudo apt-get install htop

But it throws:

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package htop

Noted that it throws E: Unable to locate package .... for everything I would like to install (like phpmyadmin). What's the problem and how can I fix it?

Solution

The htop package is in the repository 'universe'. The following commands should work to install it.

sudo add-apt-repository universe

sudo apt-get update
sudo apt-get install htop

or as root

add-apt-repository universe

apt-get update
apt-get install htop

Comments

[stack]

The result of your first command: 'universe' distribution component enabled for all sources.

[sudodus]

I use htop and I install it as described here. What is the output of your update and install commands?

[stack]

update happens successfully, but E: Unable to locate package htop is still there when I try to install htop. Can you please take a look at my server if I give you user and password?

[sudodus]

How would you send me user and password in a secure way? Maybe you can use gpg encryption and my public key, that you find at help.ubuntu.com/community/mkusb/gui/tarball

[stack]

My server is empty (almost), so I don't care about security, if you give me your email, I will send it to you. Just do you have Putty installed on your computer ?

[sudodus]

Let us continue this discussion in chat.

[stack]

Emaul has been sent

[stack]

did you get my email?

[sudodus]

@stack, Yes. Please see my messages in the chat room (and let me know if things are working now).

[aderchox]

In case anyone gets the error add-apt-repository command not found, first install the software properties common: apt-get install software-properties-common.