Upgrading ESXi Hosts to vSphere 6

October 17, 2016 – 7:15 pm

Once I loaded the UCS image in VUM, it’s a piece of cake to deploy and update the hosts.


I had one site with 2 hosts running on IBM x3650 servers, so I downloaded the Lenovo image for this platform and loaded it up in VUM. Start the deployment, and the server ends up stuck in a loop.

A quick look with the remote IMM and I found out that host had vmnic0 disconnected (but vmnic1 was connected so management was accessible). It appears that in order for the upgrade to work properly, vmnic0 MUST be plugged in!

So I had to mount the ISO using the IMM and perform a manual update on that one (since nobody was at the remote site to reconnect that interface). There’s a KB for this issue actually: https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2020658)

Nice to know!

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