Detailed Description and Symptoms
When looking at the output file with both IMPEXP debug and BODY debug in place the following was seen.
+ start_time=20121115124516
+ end_time=
+ '[' -f /uc4/am8/exec/ ']'
+ err=1
+ echo 'Cannot find this host command '
Cannot find this host command
+ echo 'Aborting processing'
Aborting processing
+ echo returned status 1
returned status 1
Investigation
As per the output file above, it appears like the host command being passed is actually <NULL> or ''. As a result of this the BODY script is failing.
Solution
This issue is rarely seen but can be seen immediately after upgrades if the 'awinstall' part of the upgrade has NOT run and finished successfully. Please re-run 'awinstall'. When at the first menu, select option 01, 'Initial Install/Upgrade from Prior version' and run it through completion.