Cisco Cisco Firepower Management Center 4000 Release Notes

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Version 5.3.0.2
Sourcefire 3D System Release Notes
17
Uninstalling the Update
Planning the Uninstallation
Before you uninstall the update, you must thoroughly read and understand the 
following sections.
Uninstallation Method
You must uninstall updates locally. You cannot use a Defense Center to uninstall 
the update from a managed device.
For all physical appliances and virtual Defense Centers, uninstall the update using 
the local web interface. Because virtual managed devices and Sourcefire 
Software for X-Series do not have a web interface, you must use the bash shell to 
uninstall the update.
Order of Uninstallation
Uninstall the update in the reverse order that you installed it. That is, first uninstall 
the update from managed devices, then from Defense Centers.
Uninstalling the Update from Clustered or Paired Appliances
Clustered devices and Defense Centers in high availability pairs must run the 
same version of the Sourcefire 3D System. Although the uninstallation process 
triggers an automatic failover, appliances in mismatched pairs or clusters do not 
share configuration information, nor do they install or uninstall updates as part of 
their synchronization. If you need to uninstall an update from redundant 
appliances, plan to perform the uninstallations in immediate succession.
To ensure continuity of operations, uninstall the update from clustered devices 
and paired Defense Centers one at a time. First, uninstall the update from the 
secondary appliance. Wait until the uninstallation process completes, then 
immediately uninstall the update from the primary appliance.
WARNING!
If the uninstallation process on a clustered device or paired Defense 
Center fails, do not restart the uninstall or change configurations on its peer. 
Instead, contact Support.
Uninstalling the Update from Stacked Devices
All devices in a stack must run the same version of the Sourcefire 3D System. 
Uninstalling the update from any of the stacked devices causes the devices in 
that stack to enter a limited, mixed-version state. 
To minimize impact on your deployment, Sourcefire recommends that you 
uninstall an update from stacked devices simultaneously. The stack resumes 
normal operation when the uninstallation completes on all devices in the stack.