An updated mksh package that fixes one bug is now available for Red Hat Enterprise Linux 6.
The mksh package provides the MirBSD version of the Korn Shell, which implements the ksh-88 programming language for both interactive and shell script use.
Prior to this update, the mksh package did not specify all requirements for RPM scriptlets. As a result, the requirements were not installed during the post install setup and the scriptlets were not able to work correctly. With this update, the bug has been fixed, and the mksh package now specifies the requirements and installs them as expected.
All users of mksh are advised to upgrade to this updated package, which fixes this bug.