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Description of problem:
microcode_ctl fails on NFS-based system because it uses /usr/bin/head
which is not available at that time:
in the standard install for runlevel 3 microcode_ctl is executed as
S00microcode_ctl before /usr is mounted via S25netfs.

Solution:
* Either execute microcode_ctl after NFS mount e.g. S30microcode_ctl or
* use /bin/awk instead of /usr/bin/head.

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


How reproducible:
Always

Steps to Reproduce:
1. Setup NFS-based system where /usr is mounted from an NFS server.
2. Install kernel-utils (contains microcode_ctl) and activate microcode_ctl for
runlevel 3.
3. Boot the system.
    

Actual Results:  microcode_ctl fails with "No such file or directory:
/usr/bin/head".

Expected Results:  Successful execution of microcode_ctl.

Additional info: