Description of problem:
/usr/bin/liveinst expects a /tmp/updates directory(?) which doesn't exist on nightly live media

Version-Release number of selected component (if applicable):
anaconda-13.26-1.fc13.x86_64

How reproducible:

Steps to Reproduce:
1. Download http://alt.fedoraproject.org/pub/alt/nightly-composes/desktop/desktop-x86_64-20100216.03.iso
2. Boot in KVM
3. run liveinst from a terminal
  
Actual results:
...
for pkg in os.listdir("/tmp/updates"):
OSError: [Errno 2] No such file or directory: '/tmp/updates'


Additional info:
Creating this directory lets things go further. The system still freezes before the install works, though...