For the record, here's the top of the trace: 

anaconda 11.4.1.38 exception report
Traceback (most recent call first):
  File "/usr/lib/anaconda/iw/netconfig_dialog.py", line 191, in _ok
    netdev.bringDeviceUp()
  File "/usr/lib/anaconda/iw/netconfig_dialog.py", line 144, in run
    if self._ok():
  File "/usr/lib/anaconda/gui.py", line 1160, in enableNetwork
    ret = net.run()
  File "/usr/lib/anaconda/yuminstall.py", line 1066, in __withFuncDo
    if anaconda.intf.enableNetwork(anaconda):
  File "/usr/lib/anaconda/yuminstall.py", line 1031, in doSackSetup
    thisrepo=thisrepo, fatalerrors=fatalerrors, progress=True)
  File "/usr/lib/anaconda/yuminstall.py", line 988, in doBackendSetup
    self.doSackSetup(anaconda)
  File "/usr/lib/anaconda/backend.py", line 246, in doBackendSetup
    if anaconda.backend.doBackendSetup(anaconda) == DISPATCH_BACK:
  File "/usr/lib/anaconda/dispatch.py", line 204, in moveStep
    rc = stepFunc(self.anaconda)
  File "/usr/lib/anaconda/dispatch.py", line 127, in gotoNext
    self.moveStep()
  File "/usr/lib/anaconda/gui.py", line 1349, in nextClicked
    self.anaconda.dispatch.gotoNext()
  File "/usr/lib/anaconda/gui.py", line 1479, in keyRelease
    self.nextClicked()
AttributeError: NetworkDevice instance has no attribute 'bringDeviceUp'

Local variables in innermost frame:
val: eth0
netdev: DEVICE=eth0
BOOTPROTO=dhcp
HWADDR=00:17:08:2a:72:3d
ONBOOT=yes

I don't seem to get a traceback on this, instead I just get a failure to
download the metadata.  No prompts to configure network.

Also, the anaconda version I'm testing is 11.4.1.39

Yours is anaconda 11.4.1.38.

Problem here was we needed to call res_init() in glibc to reinit the resolver for the new /etc/resolv.conf that NM wrote out.  This will be fixed in anaconda-11.4.1.40-1.

*** Bug 464015 has been marked as a duplicate of this bug. ***

Tested with Snap3 i386 DVD - everything worked as expected.