The solution is the following:*.* Sticky Bit permission *.* and Relinking the libararieschmod 6751 $ORACLE_HOME/bin
ls â??l oraclealso,chmod 6751 $ORACLE_HOME/libThen, use the unix command:relink allthen i tried starting ArcSDE and it works fine.Also, make sure while you are in the server using "sde" unix user account to try "sqlplus" and enter your "sde" user account and password....it should work fine.