Description of problem:

It seems related to bug 572569: /sbin/mkdumprd tries to use nash to build 
initramfs, but nash is no longer available. 

# service kdump restart
Stopping kdump:                                            [  OK  ]
Detected /etc/kdump.conf or /boot/vmlinuz-2.6.35.11-83.fc14.x86_64 change
Rebuilding /boot/initrd-2.6.35.11-83.fc14.x86_64kdump.img
WARNING: using /root for temporary files
/sbin/mkdumprd: line 951: nash: command not found
Starting kdump:                                            [  OK  ]


Version-Release number of selected component (if applicable):
kexec-tools-2.0.0-39.fc14.1.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Make a change to /etc/kdump.conf to trigger a rebuild of initramfs
2. service kdump restart
  
Actual results:
Apparently initrd for crash kernel is generated, but I cannot tell 
if it might fail with some dm configuration. According to comment on 
line 1477 of /sbin/mkdumprd: 
# nash should do lvm probing for us and write its own configs.

I suppose this fails, at least. 

Expected results:
No warnings (and no use of nash into the script).