Uninstall SQL Patch with SkipRules

dba.stackexchange https://dba.stackexchange.com/questions/187030

  •  09-10-2020
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Question

I've recently installed Cumulative Update 6 for SQL Server 2014 SP2. I installed it on the passive node of a 2 node cluster. To install the patches I paused the role in cluster manager and ran the setup from command line with:

/SkipRules=Cluster_IsOnlineIfClustered /action=patch

I now need to uninstall CU6 as we've come across some issues we need to resolve. However, I am unable to uninstall the patch as I cannot get past the rule checks. If I run the same command to start setup the UI does not give me the uninstall/maintenance options.

Is there anyway to skip rules to uninstall a patch, or am I going to have to remove this node from the cluster before I can proceed?

Was it helpful?

Solution

With confirmation from Pix(from Chat) the correct way to remove cumulative update is to use /RemovePatch instead of using /uninstall. The way to remove updates is documented in Installing Updates from Command Prompt.

The script would be 

"sqlserver2014-kb4032541-x86_080a5c3a38b721a9587c2072375921161896e19d.exe" /qs /Action=RemovePatch /InstanceName=InstanceName /SkipRules=Cluster_IsOnlineIfClustered
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