Troubleshoot Pdksh conflicts with ksh-20100621-2.el6.i686 issues when installing oracle11g R2

From: http://blog.csdn.net/linghao00/article/details/7943740

When installing Oracle 11g R2 on CenOS6, RHEL6, or Oracle LINUX 6: The Pdksh package is not installed,

Follow the prompts to get a pdksh-5.2.14-36.el5.i386.rpm package from the Web, and then try to install:

# RPM-IVH pdksh-5.2.14-36.el5.i386.rpm
Warning:pdksh-5.2.14-36.el5.i386.rpm:header V3 dsa/sha1 Signature, key ID E8562897:nokey
error:failed dependencies:
Pdksh conflicts with ksh-20100621-2.el6.i686

The solution to this problem is very simple:

# RPM-E ksh-20100621-2.el6.i686

# RPM-IVH pdksh-5.2.14-36.el5.i386.rpm

Troubleshoot Pdksh conflicts with ksh-20100621-2.el6.i686 issues when installing oracle11g R2