The problem appears to be in the handling of the partner repository:
# active distribution -deb http://archive.ubuntu.com/ubuntu/ intrepid main restricted universe multiverse -deb http://archive.canonical.com/ intrepid partner -deb http://archive.ubuntu.com/ubuntu/ intrepid-updates main restricted universe multiverse -deb http://archive.ubuntu.com/ubuntu/ intrepid-proposed main restricted universe multiverse -deb http://security.ubuntu.com/ubuntu/ intrepid-security main restricted universe multiverse +deb http://archive.ubuntu.com/ubuntu/ jaunty main restricted universe multiverse +deb http://archive.canonical.com/ jaunty partner +deb http://archive.ubuntu.com/ubuntu/ jaunty-updates main restricted universe multiverse partner +deb http://archive.ubuntu.com/ubuntu/ jaunty-proposed main restricted universe multiverse +deb http://security.ubuntu.com/ubuntu/ jaunty-security main restricted universe multiverse partner
Note that partner only exists on archive.canonical.com, but it's been added to the archive.ubuntu.com line. Commenting out the partner line above doesn't avoid the problem though.
The problem appears to be in the handling of the partner repository:
# active distribution archive. ubuntu. com/ubuntu/ intrepid main restricted universe multiverse archive. canonical. com/ intrepid partner archive. ubuntu. com/ubuntu/ intrepid-updates main restricted universe multiverse archive. ubuntu. com/ubuntu/ intrepid-proposed main restricted universe multiverse security. ubuntu. com/ubuntu/ intrepid-security main restricted universe multiverse archive. ubuntu. com/ubuntu/ jaunty main restricted universe multiverse archive. canonical. com/ jaunty partner archive. ubuntu. com/ubuntu/ jaunty-updates main restricted universe multiverse partner archive. ubuntu. com/ubuntu/ jaunty-proposed main restricted universe multiverse security. ubuntu. com/ubuntu/ jaunty-security main restricted universe multiverse partner
-deb http://
-deb http://
-deb http://
-deb http://
-deb http://
+deb http://
+deb http://
+deb http://
+deb http://
+deb http://
Note that partner only exists on archive. canonical. com, but it's been added to the archive.ubuntu.com line. Commenting out the partner line above doesn't avoid the problem though.