Description of problem:

When using the boot.iso in rescue mode, the installer dies with a python error.

Version-Release number of selected component (if applicable): rawhide-20061127


How reproducible: 100%


Steps to Reproduce:
1. Boot boot.iso with "linux rescue"
2. Select NFS ...
  
Actual results:

Running anaconda, the Fedora Core rescue mode - please wait...                 
Traceback (most recent call last):
  File "/usr/bin/anaconda", line 741, in ?
    anaconda.id = instdata.InstallData([], "fd0", anaconda.methodstr, opts.disp)
  File "/usr/lib/anaconda/instdata.py", line 281, in __init__
    self.reset()
  File "/usr/lib/anaconda/instdata.py", line 70, in reset
    self.bootloader = bootloader.getBootloader()
  File "/usr/lib/anaconda/bootloader.py", line 207, in getBootloader
    return booty.getBootloader()
  File "/usr/lib/booty/booty.py", line 37, in getBootloader
    return ia64BootloaderInfo()
  File "/usr/lib/booty/bootloaderInfo.py", line 615, in __init__
    bootloaderInfo.__init__(self)
  File "/usr/lib/booty/bootloaderInfo.py", line 481, in __init__
    self.updateDriveList()
  File "/usr/lib/booty/bootloaderInfo.py", line 445, in updateDriveList
    self.drivelist = self.createDriveList()
  File "/usr/lib/booty/bootloaderInfo.py", line 436, in createDriveList
    drives = isys.cachedDrives.keys()
AttributeError: 'NoneType' object has no attribute 'keys'
install exited abnormally [1/1] 
sending termination signals...done
sending kill signals...done
disabling swap...
unmounting filesystems...
        /mnt/runtime done
        disabling /dev/loop0
        /proc/bus/usb done
        /proc done
        /dev/pts done
        /sys done
        /tmp/ramfs done
        /mnt/source done
        /selinux done
you may safely reboot your system

Expected results: Should boot into linux rescue mode.