How to roll back and downgrade the ESXi version ^ Let's take a look at the process, which is very straightforward. Once you have met the above requirements and you have verified you have a valid version of the ESXi hypervisor contained in the /altbootbank location, you should be good to roll back ESXi.
ESXi host update using VMware Update ManagerĤ) Perform all the necessary housekeeping, including migrating any running VMs off the ESXi host.
This is easily done using PowerCLI: Get-VMHostFirmware -VMHost $host -BackupConfiguration -DestinationPath ģ) Reverting an ESXi host is only valid if the host was updated using one of these methods: These are described below.ġ) You need to have access to the Direct Console User Interface (DCUI) on the ESXi host that you want to roll back.Ģ) Make sure to get a configuration backup of your ESXi host. There are a few requirements and things to keep in mind when deciding to roll your vSphere ESXi installation back to a previous version of the hypervisor. What are the requirements for rolling back to a previous version of ESXi? Let's take a look. Looking at the boot.cfg to see the versions contained for ESXi rollback Rolling ESXi back may make sense and save you a lot of time in reloading, troubleshooting, or performing other time-intensive tasks to get to a known good state. These are just a few use cases you may encounter. Rolling the ESXi version back is easier than reloading ESXi from scratch and restoring configurations.Your upgrade failed in some way and the ESXi installation is not functioning correctly.
Your standalone host may be at a higher version and you need to downgrade it. You are bringing a standalone ESXi host into an existing vSphere cluster.You need to revert to a previous version of ESXi for a particular reason due to compatibility, supportability for a specific set of hardware, etc.