Created attachment 596214 [details]
kickstart file

Description of problem:
An otherwise-successful pxe/nfs install from a mounted, unpacked iso hangs on reboot. After exit from the installer, I see a successful shutdown of the network interface by NetworkManager that completes before unmounting of the filesystems, which inevitably results in "Could not unmount /run/install/repo: Device or resource busy". 

Version-Release number of selected component (if applicable):
Anaconda from an F17 64-bit install DVD (sorry, I'm not clear how I figure out the version).

How reproducible:
100% reliable

Steps to Reproduce:
1. pxe/tftp, pivot to
2. anaconda/nfs using kickstart file
3. automatically reboot
  
Actual results:
Reboot hangs waiting for nfs mount of iso to unmount

Expected results:
Reboot completes

Additional info:
I'm not sure if this is a duplicate of bug 824191 or one of the security-hidden bugs referred to there (couldn't quite work out what symptoms they were describing). However I did try putting updates.reboot.img in the images directory, and that didn't help. So I'm guessing it's different.