Description of problem:
Installer fails immediately after skipping cd check. Error is:

Running anaconda, the Red Hat Enterprise Linux Server system installer - please
wait...
Probing for video card: ATI Technologies Inc Rage XL
Attempting to start native X server
Waiting for X server to start...log located in /tmp/ramfs/X.log
1...2...3...4...5... X server started successfully.
Starting graphical installation...
Traceback (most recent call last):
     File "/usr/bin/anaconda", line 900, in ?
          iutil.makeDriveDeviceNodes()
     File "/usr/lib/anaconda/iutil.py", line 264, in makeDriveDeviceNodes
          isys.makeDevInode(device, "/dev/%s" % (device,))
     File "/usr/lib/anaconda/isys.py", line 422, in makeDevInode
          _isys.mkdevinode(name, fn)
SystemError: (2, 'No such file or directory')
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
          /devpts done
          /sys done
          /tmp/ramfs done
          /mnt/source done
          /selinux done
you may safely reboot your system

I get the same error when choosing text install (sans the x server stuff, of
course).


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

n/a

How reproducible:

Every time on this machine (HP Proliant ML350). Install has worked fine on other
servers, including an HP Proliant DL380.

Steps to Reproduce:
1. Boot from RHEL 5.1 disc (64 or 32 -bit). Disc known to work on other
computers, before and after this attempt, passes checksums.
2. Skip cd check.
3. Error.
  
Actual results:

Installer fails.

Expected results:

Installer installs.

Additional info:

Installer runs fine on an HP Proliant DL380