1. I assume the redhat version on the converted wlse is RH4 so you will need the RH upgrade for the wlse to get it to RH5. You will need to open a ticket with TAC to request that. Check using "cat redhat-release" on the converted wlse.
2. Upgrading to 6.x you will want to make a stop at 126.96.36.199 and allow data cleanup to run once successfully ( either change the time of the background task and let it complete or leave it up and running so it crosses the 1am default start time and completes successfully ). From 188.8.131.52 you could either go directly to 184.108.40.206 or make a stop at 220.127.116.11 and repeat the data cleanup procedure.
I'm a believer in allowing the db to upgrade in smaller chunks so I stop at 18.104.22.168
I always recommend the manual procedure for upgrading WCS:
I would not recommend the automatic upgrade personally. When you are talking about database conversions during the upgrade we have seen less issues with the manual over the automatic procedure. You can use something similar to winscp to get the file over to the linux machine instead of burning it to a cd.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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