Upgrade ESXi host to ESXi 5.5 using VMware Update Manager 5.5
A while back I wrote about how to upgrade to ESXi 5.5 via command line which works great when you only have a few hosts as each host has to download the ISO from the web each time. This time I’ll show you step by step how to upgrade your ESXi 5.1 host to ESXi 5.5 using VMware Update Manager 5.5 (aka VUM).
For this post I’m going to assume you have already upgraded your vCenter and VUM to versions 5.5 as well as the VUM plugin installed. So lets begin!
Upgrade ESXi host to 5.5 using VMware Update Manager (VUM)
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