The comment about "add all patches" got me thinking: if you install the 10.2.0.4 patchset and then install patch 16, do you only have to do the upgrade, or do you have to also follow the post-installation instructions for patch 16, which call for running catcpu among other things. -- Jason Heinrich On Tue, Mar 31, 2009 at 8:25 AM, orcl <orcl@xxxxxxx> wrote: > I think I may also mention that > I have 5 databses sharing one home > > > my plan is to install 10.2.0.1 - patch to 10.2.0.4 into a new home, and add > all patches, then manually upgrade 1 database at a time to the new home > > >