It's been quite a while since my latest post. Let me get back on track with this short one.

During an upgrade of 10.2.0.5 two node RAC -CRS and ASM- to 11.2.0.4, rootupgrade.sh script failed with some errors on the second node. I corrected them and re-run the script a couple of times. At last rootupgrade.sh ended with the following:

PRKO-3226 : Upgrade from version 11.2.0.4.0 to version 11.2.0.4.0 using srvctl upgrade model command of version 11.2.0.4.0 is not supported

When it's queried, CRS's version seems upgraded:

$ crsctl query crs softwareversion
Oracle Clusterware version on node [node2] is [11.2.0.4.0]

To be sure, I opened an SR on the issue. Oracle Support replied by stating that it's totally a misleading error since the node  already has been upgraded and it's safe to continue. So I ignored the error and didn't re-run rootupgrade.sh, continued through UI and completed the process successfully.