During installation of Red Hat Enterprise Linux 5 "grep -Fi" may not give the correct output

Solution Verified - Updated -

Issue

  • In the installer context (where grep is actually symbolically linked to busybox), running grep -FI may not give correct output. For example:
[root@host ~]# echo HP | grep -Fi hp 
[root@host ~]# echo HP | grep -i hp 
    HP
  • Both commands hould return the same output ("HP").

Environment

  • Red Hat Enterprise Linux 5.5
  • busybox-1.2.0-7.el5
  • Installation or Rescue Environment

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