These days I’m responsible on applying CPU patches on some critical databases. Actually I’m thinking to create a new blog post on this topic

But now I would like to share a nice blog post which can be useful to overcome some patch installation issues you get during the installation

Here’s the link:

http://oracletechtips.com/2011/cpu-patch-error-code-73-or-74/

I liked the latest (7) step which was also helped me to overcome “is not writable” error even the mentioned .so file wasn’t in use by any active process

And my last advise : Don’t forget to backup “Oracle Home” folder and even having the backup of the database itself!