deb-src http://gb.archive.ubuntu.com/ubuntu/ dapper main restricted
deb-src http://gb.archive.ubuntu.com/ubuntu/ dapper-updates main restricted
deb-src http://gb.archive.ubuntu.com/ubuntu/ dapper universe multiverse
# deb-src http://gb.archive.ubuntu.com/ubuntu/ dapper-backports main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted
# deb-src http://security.ubuntu.com/ubuntu dapper-security universe