Description of problem:
I tried to start a rescue system, where the image is used from an FTP
server. Red Hat Linux Advanced Server 2.1 U3 is used. Everything is 
correct (boot image, netstg1, FTP server etc).

--- snipp ---
Running anaconda - please wait...
Traceback (innermost last):
  File "/usr/bin/anaconda", line 236, in ?
    rescue.runRescue("/mnt/sysimage", not rescue_nomount, id)
  File "/usr/src/build/331960-ia64/install//usr/lib/anaconda/rescue.py", line 84
, in runRescue
  File "/usr/lib/anaconda/isys.py", line 242, in makeDevInode
    _isys.mkdevinode(name, fn)
SystemError: (2, 'No such file or directory')
install exited abnormally
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
        /tmp/ramfs done
you may safely reboot your system
--- snapp ---

How reproducible:
Every time

Steps to Reproduce:
1. linux rescue console=ttyS0
2. enter network data
3. enter FTP information
4. get the error from above
   
Actual results:
I don't have this problem with RHAS 2.1 Q2's boot image/netstg1.

Expected results:
Using the rescue system from RHAS 2.1 U3 without a crash ;-)