What apt-mirror actually does is only download packages for the architecture on which it is running. At least, that's the default behaviour. So if the computer running apt-mirror is an i386 machine, then you won't get PPC or AMD64 packages, nor any other architecture. People using this software to mirror Debian servers are probably quite grateful for this, but sadly there's not a lot of documentation for apt-mirror.
It seems you can specify a default architecture to mirror on the "set defaultarch" line. That's useful if you want to mirror one arch on a server of a different arch. If you want to mirror multiple archs you have to specify lines for each in the config file, for example: deb-i386 http://gb.archive.ubuntu.com/ubuntu feisty main restricted universe multiverse
deb-amd64 http://gb.archive.ubuntu.com/ubuntu feisty main restricted universe multiverse
Actually...
What apt-mirror actually does is only download packages for the architecture on which it is running. At least, that's the default behaviour. So if the computer running apt-mirror is an i386 machine, then you won't get PPC or AMD64 packages, nor any other architecture. People using this software to mirror Debian servers are probably quite grateful for this, but sadly there's not a lot of documentation for apt-mirror.
It seems you can specify a default architecture to mirror on the "set defaultarch" line. That's useful if you want to mirror one arch on a server of a different arch. If you want to mirror multiple archs you have to specify lines for each in the config file, for example:
deb-i386 http://gb.archive.ubuntu.com/ubuntu feisty main restricted universe multiversedeb-amd64 http://gb.archive.ubuntu.com/ubuntu feisty main restricted universe multiverse