I was installing new (second) release of Oracle 11g database on Solaris x86 (Intel/AMD compatible) 64 bit version. Installation was fain, I had been facing just one error (.../root.sh: /usr/xpg4/bin/grep: not found) during execution of root.sh script at the end of the installation. As I was unable to find right package and during review of script (I found out there is not used grep -E) so I created symlink as workaround. As usual I made installation article which You can find on right menu of this page.