Upgrading to VMware ESXi 5.5 Update 1 fails due to conflicting VIBs

If you have installed updated version(s) of network and/or storage HBA’s at any time, you will find yourself hitting the wall one you want to upgrade your ESXi server to v5.5 Update 1. Reason for that is that the newer driver(s) are not part of the upgrade installation, and as such it must be updated manually before you can upgrade your ESXi server. When you attach custom ISO in your Update Manager, and scan host for upgrades, you will be presented with the result “Incompatible” and in the error detail, there will be message: Continue reading “Upgrading to VMware ESXi 5.5 Update 1 fails due to conflicting VIBs”