installing oracle grid 11G r2 with Oracle database server 10G r2 on Red Hat enterprise 5.4 64 bit

 hi
i need to install grid infrastructure 11G r2 with Oracle database server 10G r2 on Red Hat enterprise 5.4 64 bit server (2 nodes)

i'm using those two documents:
- B15666-13 for oracle database server 10G r2
- E10812-04 for grid infrastructure 11G r2

i saw that those documents have slightly different requirement for the pre-installation packages on Red Hat
May i install only those for grid infrastructure 11G r2 ? are those enought for the whole installation?

Again, as second question, i found this page:
http://www.oracle.com/technology/pub/articles/smiley_rac10g_install.html

is there something like that for installation oracle 11G r2? it's more fast than reading a 50 pages of documentations, that could be usefull if some problems will be found after