I tried this on a second virtual machine with ubuntu-release-upgrader version 1:0.190.6 from quantal-proposed and was able to start the upgrade to raring. I believe the first system was misconfigured as the changes definitely exist in the packages available on the archive.
I tried this on a second virtual machine with ubuntu- release- upgrader version 1:0.190.6 from quantal-proposed and was able to start the upgrade to raring. I believe the first system was misconfigured as the changes definitely exist in the packages available on the archive.