diff --git a/misc/sources.list.ubuntu1210 b/misc/sources.list.ubuntu1210
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+# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
+# newer versions of the distribution.
+deb mirror://mirrors.ubuntu.com/mirrors.txt quantal main restricted universe multiverse
+
+## Major bug fix updates produced after the final release of the
+## distribution.
+deb mirror://mirrors.ubuntu.com/mirrors.txt quantal-updates main restricted universe multiverse
+
+## N.B. software from this repository may not have been tested as
+## extensively as that contained in the main release, although it includes
+## newer versions of some applications which may provide useful features.
+## Also, please note that software in backports WILL NOT receive any review
+## or updates from the Ubuntu security team.
+#deb mirror://mirrors.ubuntu.com/mirrors.txt quantal-backports main restricted universe multiverse
+deb mirror://mirrors.ubuntu.com/mirrors.txt quantal-security main restricted universe multiverse
+deb-src mirror://mirrors.ubuntu.com/mirrors.txt quantal main restricted universe multiverse
+deb-src mirror://mirrors.ubuntu.com/mirrors.txt quantal-updates main restricted universe multiverse
+#deb-src mirror://mirrors.ubuntu.com/mirrors.txt quantal-backports main restricted universe multiverse
+deb-src mirror://mirrors.ubuntu.com/mirrors.txt quantal-security main restricted universe multiverse
+
+## Uncomment the following two lines to add software from Canonical's
+## 'partner' repository.
+## This software is not part of Ubuntu, but is offered by Canonical and the
+## respective vendors as a service to Ubuntu users.
+deb http://archive.canonical.com/ubuntu quantal partner
+deb-src http://archive.canonical.com/ubuntu quantal partner
+
+## This software is not part of Ubuntu, but is offered by third-party
+## developers who want to ship their latest software.
+deb http://extras.ubuntu.com/ubuntu quantal main
+deb-src http://extras.ubuntu.com/ubuntu quantal main
+
+# Virtualbox
+# gpg --keyserver pool.sks-keyservers.net --recv-keys 98AB5139
+# gpg --export -a 7B0FAB3A13B907435925D9C954422A4B98AB5139|apt-key add -
+deb http://download.virtualbox.org/virtualbox/debian squeeze contrib