Have a look at MOS note 169706.1 - "Oracle Database on Unix AIX,HP-UX,Linux,Mac OS X,Solaris,Tru64 Unix Operating Systems Installation and Configuration Requirements Quick Reference (8.0.5 to 11.2)" It specifies pdksh as a requirement for linux 32bit and oracle 11gR2. Pdksh is not listed for 64bit linux for oracle versions higher then 10.2. Regards, Freek D'Hooge Uptime Oracle Database Administrator email: freek.dhooge@xxxxxxxxx tel +32(0)3 451 23 82 http://www.uptime.be disclaimer: www.uptime.be/disclaimer ________________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Ravi Madabhushanam Sent: vrijdag 4 juni 2010 12:16 To: oracle-l@xxxxxxxxxxxxx Subject: pdksh on CentOS -5 Hello All, I'm trying to install 11gR2 and Application server on CentOS 5.2 server. During 11gR2 installation OUI complained about pdksh not being installed. This rpm is not present in the default rpm list in MOS. After raising an Oracle SR , analyst confirmed that it is not needed. Also AS installation is complaining about openmotif21 rpm along with pdksh. But I can find openmotif22 on the installation media . Did anyone faced these issues? or am I missing something critical here. Also why am I supposed to install pdksh when we already have ksh installed as part of pre-req's. Thanks you very much. Regards, ~Ravi.M -- //www.freelists.org/webpage/oracle-l