nitrogen:/var/lib# cat /etc/apt/sources.list | grep -v "^$" | grep -v "^#"
deb http://debian-mirror.mirror.umn.edu/debian/ stable main non-free contrib
deb http://debian-mirror.mirror.umn.edu/debian/ testing main non-free contrib
deb http://debian-mirror.mirror.umn.edu/debian/ unstable main non-free contrib
deb http://security.debian.org/ stable/updates main contrib non-free
deb http://www.backports.org/debian sarge-backports main contrib non-free
deb http://mirror.noreply.org/pub/tor stable main
deb http://dotdeb.pimpmylinux.org/ stable all
nitrogen:/var/lib# 

nitrogen:/var/lib# grep -v "^$" /etc/apt/preferences 
Package: *
Pin: release a=stable
Pin-Priority: 990
Package: subversion
Pin: release a=sarge-backports
Pin-Priority: 999
Package: subversion-tools
Pin: release a=sarge-backports
Pin-Priority: 999
Package: libsvn0
Pin: release a=sarge-backports
Pin-Priority: 999
Package: python-subversion
Pin: release a=sarge-backports
Pin-Priority: 999
nitrogen:/var/lib# 

nitrogen:/var/log/apache2# apt-get -s dist-upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
Calculating Upgrade... Done
The following packages have been kept back:
  libdbd-mysql-perl libevent1 libmysqlclient15off mysql-client-5.0 mysql-server-5.0 tor
The following packages will be upgraded:
  mysql-client mysql-common mysql-server
3 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.
Inst mysql-client [5.0.32-1.dotdeb.1] (5.0.36-1 Debian:unstable)
Inst mysql-common [5.0.32-1.dotdeb.1] (5.0.36-1 Debian:unstable)
Inst mysql-server [5.0.32-1.dotdeb.1] (5.0.36-1 Debian:unstable)
Conf mysql-client (5.0.36-1 Debian:unstable)
Conf mysql-common (5.0.36-1 Debian:unstable)
Conf mysql-server (5.0.36-1 Debian:unstable)
nitrogen:/var/log/apache2#