diff --git a/etc/apt/sources.list/debian b/etc/apt/sources.list/debian
index 22871c0e..4dbd543a 100644
--- a/etc/apt/sources.list/debian
+++ b/etc/apt/sources.list/debian
@@ -1,5 +1,3 @@
-# debiant in this directory is for Debian Testing.
-
 ## Main Debian archives.
 deb http://http.debian.net/debian stable main contrib non-free
 deb-src http://http.debian.net/debian stable main contrib non-free
diff --git a/etc/apt/sources.list/debiant b/etc/apt/sources.list/debiant
index 79e7fdde..cc058bcc 100644
--- a/etc/apt/sources.list/debiant
+++ b/etc/apt/sources.list/debiant
@@ -1,5 +1,3 @@
-# debian (without the t) in this directory is for Debian Stable.
-
 ## Main Debian archives.
 deb http://http.debian.net/debian testing main contrib non-free
 deb-src http://http.debian.net/debian testing main contrib non-free
diff --git a/etc/apt/sources.list/debianu b/etc/apt/sources.list/debianu
new file mode 100644
index 00000000..808848ea
--- /dev/null
+++ b/etc/apt/sources.list/debianu
@@ -0,0 +1,3 @@
+## Main Debian archives.
+deb http://http.debian.net/debian unstable main contrib non-free
+deb-src http://http.debian.net/debian unstable main contrib non-free
diff --git a/etc/apt/sources.list/jessie b/etc/apt/sources.list/jessie
new file mode 100644
index 00000000..9e92aff0
--- /dev/null
+++ b/etc/apt/sources.list/jessie
@@ -0,0 +1,11 @@
+## Main Debian archives.
+deb http://http.debian.net/debian jessie main contrib non-free
+deb-src http://http.debian.net/debian jessie main contrib non-free
+
+## Debian Security
+deb http://security.debian.org/ jessie/updates main contrib non-free
+deb-src http://security.debian.org/ jessie/updates main contrib non-free
+
+## Debian Backports
+deb http://http.debian.net/debian jessie-backports main contrib non-free
+deb-src http://http.debian.net/debian jessie-backports main contrib non-free
diff --git a/etc/apt/sources.list/squeeze b/etc/apt/sources.list/squeeze
new file mode 100644
index 00000000..489e2af1
--- /dev/null
+++ b/etc/apt/sources.list/squeeze
@@ -0,0 +1,11 @@
+## Main Debian archives.
+deb http://http.debian.net/debian squeeze main contrib non-free
+deb-src http://http.debian.net/debian squeeze main contrib non-free
+
+## Debian Security
+deb http://security.debian.org/ squeeze/updates main contrib non-free
+deb-src http://security.debian.org/ squeeze/updates main contrib non-free
+
+## Debian Backports
+deb http://http.debian.net/debian-backports squeeze-backports main contrib non-free
+deb-src http://http.debian.net/debian-backports squeeze-backports main contrib non-free
diff --git a/etc/apt/sources.list/wheezy b/etc/apt/sources.list/wheezy
new file mode 100644
index 00000000..af747b5f
--- /dev/null
+++ b/etc/apt/sources.list/wheezy
@@ -0,0 +1,11 @@
+## Main Debian archives.
+deb http://http.debian.net/debian wheezy main contrib non-free
+deb-src http://http.debian.net/debian wheezy main contrib non-free
+
+## Debian Security
+deb http://security.debian.org/ wheezy/updates main contrib non-free
+deb-src http://security.debian.org/ wheezy/updates main contrib non-free
+
+## Debian Backports
+deb http://http.debian.net/debian wheezy-backports main contrib non-free
+deb-src http://http.debian.net/debian wheezy-backports main contrib non-free