Description of problem:
Running fedup on my system, fedup exits without doing anything.

Version-Release number of selected component (if applicable):
fedup 0.7.3-4.fc18.noarch

How reproducible:
Run fedup on my Fedora 18 system?

Steps to Reproduce:
1. fedup-cli --network 19 --debuglog /root/fedupwithfedup.log
2. Cleared yum and fedup data with "clean," still failed
3. System is not behind a proxy
4. Seems to fail to find metadata for the defaultinstall repo?
5. If I can provide any other info that would be helpful, I will try to do so.

Actual results:   
Error: can't get boot images.
The installation repo isn't available.
You need to specify one with --instrepo.


Expected results:
Upgraded system

Additional info:
[     0.258] (II) fedup:<module>() /usr/bin/fedup-cli starting at Sun Jul 21 17:14:08 2013
[     0.311] (DD) fedup:setup_downloader() setup_downloader(version=19, repos=[])
[     0.311] (II) fedup.yum:__init__() FedupDownloader(version=19, cachedir=/var/tmp/fedora-upgrade)
[     0.312] (DD) fedup.yum:__init__() prerepoconf.cache=0
[     0.312] (II) fedup.yum:setup_repos() checking repos
[     0.397] (DD) fedup.yum:_getConfig() conf.cache=0
[     0.544] (II) fedup.yum:setup_repos() repo adobe-linux-i386 seems OK
[     1.444] (II) fedup.yum:setup_repos() can't find valid repo metadata for default-installrepo
[     1.461] (II) fedup.yum:setup_repos() repo fedora seems OK
[     1.467] (II) fedup.yum:setup_repos() repo google-earth seems OK
[     1.472] (II) fedup.yum:setup_repos() repo google-talkplugin seems OK
[     1.482] (II) fedup.yum:setup_repos() repo rpmfusion-free seems OK
[     1.490] (II) fedup.yum:setup_repos() repo rpmfusion-free-updates seems OK
[     1.500] (II) fedup.yum:setup_repos() repo rpmfusion-nonfree seems OK
[     1.516] (II) fedup.yum:setup_repos() repo rpmfusion-nonfree-updates seems OK
[     1.521] (II) fedup.yum:setup_repos() repo updates seems OK
[     1.522] (DD) fedup.yum:setup_repos() repos.cache=0
[     1.523] (II) fedup:<module>() /usr/bin/fedup-cli exiting at Sun Jul 21 17:14:10 2013
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