Hello all

I am trying my first attempt to successfully download something to the debian I have recently installed on an old Vista machine.

https://justgetflux.com/linux.html

This looks interesting and comes with a step by step instuction helper. Bad part it comes with 404 not found. However people say they have recently been able to add it.
Question: Which terminal should I be in. I have the choice of root or just terminal.

root@Bill:/home/bill# sudo add-apt-repository ppa:kilian/f.lux
You are about to add the following PPA to your system:
PPA for the f.lux indicator applet
More info: https://launchpad.net/~kilian/+archive/ubuntu/f.lux
Press [ENTER] to continue or ctrl-c to cancel adding it

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.07Qzj3CW41 --trustdb-name /etc/apt//trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-jessie-stable.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-squeeze-automatic.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-squeeze-stable.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-wheezy-automatic.gpg --keyring /etc/apt/trusted.gpg.d//debian-archive-wheezy-stable.gpg --keyserver hkp://keyserver.ubuntu.com:80/ --recv E602B5DDEA4951FB628E7BD4FAEB83059BD4ED25
gpg: requesting key 9BD4ED25 from hkp server keyserver.ubuntu.com
gpg: key 9BD4ED25: "Launchpad Trimage" not changed
gpg: Total number processed: 1
gpg: unchanged: 1
root@Bill:/home/bill#
root@Bill:/home/bill# sudo apt-get update
Hit http://ftp.us.debian.org wheezy Release.gpg
Hit http://ftp.us.debian.org wheezy-updates Release.gpg
Hit http://ftp.us.debian.org wheezy Release
Ign http://ppa.launchpad.net wheezy Release.gpg
Hit http://ftp.us.debian.org wheezy-updates Release
Hit http://ftp.us.debian.org wheezy/main Sources
Hit http://security.debian.org wheezy/updates Release.gpg
Ign http://ppa.launchpad.net wheezy Release
Hit http://security.debian.org wheezy/updates Release
Hit http://ftp.us.debian.org wheezy/main amd64 Packages
Hit http://ftp.us.debian.org wheezy/main Translation-en
Hit http://ftp.us.debian.org wheezy-updates/main Sources
Hit http://security.debian.org wheezy/updates/main Sources
Hit http://ftp.us.debian.org wheezy-updates/main amd64 Packages/DiffIndex
Hit http://ftp.us.debian.org wheezy-updates/main Translation-en/DiffIndex
Hit http://security.debian.org wheezy/updates/main amd64 Packages
Hit http://security.debian.org wheezy/updates/main Translation-en
Err http://ppa.launchpad.net wheezy/main Sources
404 Not Found
Err http://ppa.launchpad.net wheezy/main amd64 Packages
404 Not Found
Ign http://ppa.launchpad.net wheezy/main Translation-en_US
Ign http://ppa.launchpad.net wheezy/main Translation-en
W: Failed to fetch http://ppa.launchpad.net/kilian/f.lu...source/Sources 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/kilian/f.lu...amd64/Packages 404 Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.
root@Bill:/home/bill#

---------- Post added 12-08-14 at 07:07 PM ----------

thought it would be helpful to see this.

Looks like it isn't available for wheezy for some reason:
http://ppa.launchpad.net/kilian/f.lux/ubuntu/dists/

PPAs are a Ubuntu thing. I don't believe that Debian supports them.

It looks as if you can download the sources from github and compile them for Debian.