With 2009-03-22 rawhide, http installs are failing to download repomd.xml

With this patch:

     def urlgrabberFailureCB (self, obj, *args, **kwargs):
-        log.warning("Try %s/%s for %s failed" % (obj.tries, obj.retry, obj.url))
+        log.warning("Try %s/%s for %s failed: %s" % (obj.tries, obj.retry, obj.url, obj.exception))

the error I was seeing is:

  Try 1/10 for http://ftp.heanet.ie/mirrors/fedora/linux/development/x86_64/os/repodata/repomd.xml failed: [Errno 4] IOError: <urlopen error [Errno 2] No such file or directory>

Downloading the url with wget works fine from the anaconda shell

Running strace the only interesting thing I could see was:

   open("/etc/hosts", O_RDONLY|O_CLOEXEC)  = -1 ENOENT (No such file or directory)

Sure enough, no /etc/hosts exists and touching it before retrying makes the install proceed just fine.