I'm on a Websphere Portal migration from v220.127.116.11 to v18.104.22.168. I'm starting with the pre-prod cluster which has 2 nodes. New VMs are being used for v7 nodes.
I installed WAS/Portal, IHS, and the plugin without any problems on each of the nodes. Following the infocenter guide I used defaults.isBinaryInstall="true" parameter to install only the binary code. With this option no profiles are created during the install process. Profiles and nodes are created later using manageprofiles as part of the migration prodecure of each node, using WAS 7 migration tools.
I installed WAS fixpack 19 and portal fixpack 22.214.171.124. The pre-requisites say that WAS FP 13 is the minimum required for portal 126.96.36.199. I went ahead and installed WAS FP 19 to take advantage of the latest fixes.
The deployment manager migration went ok using the WASPreUpgrade and WASPostUpgrade tools.
The primary and secondary nodes ran into a problem on the WASPostUpgrade task, with the following error thrown
After doing a quick forum & web search to see if this is a known problem and if there is a workaround, I found that the source portal needs to be at 188.8.131.52 level.
Here is the technote : http://www-304.ibm.com/support/docview.wss?uid=swg21497724