Turns out I've been installing squeeze this whole time, ack
d-i mirror/http/proxy string
# Suite to install.
d-i mirror/http/proxy string
# Suite to install.
-d-i mirror/suite string squeeze
+d-i mirror/suite string wheezy
# Suite to use for loading installer components (optional).
#d-i mirror/udeb/suite string testing
# Suite to use for loading installer components (optional).
#d-i mirror/udeb/suite string testing
d-i apt-setup/local0/source boolean true
# backports
d-i apt-setup/local1/repository string \
d-i apt-setup/local0/source boolean true
# backports
d-i apt-setup/local1/repository string \
- http://debian.hcoop.net/ squeeze-backports main
+ http://debian.hcoop.net/ wheezy-backports main
d-i apt-setup/local1/comment string HCoop backport packages
# Enable deb-src lines
d-i apt-setup/local1/source boolean true
# Official backports
d-i apt-setup/local2/repository string \
d-i apt-setup/local1/comment string HCoop backport packages
# Enable deb-src lines
d-i apt-setup/local1/source boolean true
# Official backports
d-i apt-setup/local2/repository string \
- http://backports.debian.org/debian-backports squeeze-backports main
+ http://mirror.peer1.net/debian wheezy-backports main
d-i apt-setup/local2/comment string Debian backports
# Enable deb-src lines
d-i apt-setup/local2/source boolean true
d-i apt-setup/local2/comment string Debian backports
# Enable deb-src lines
d-i apt-setup/local2/source boolean true