Can upgrade you 5.1 to 5.5 ESXi host using the zip file?

I read the KB articles which seem to indicate that, to upgrade an ESXi host, you must use a vSphere Manager or an ISO on CD or USB.   But I saw someone go from 5.1 to 5.5 by downloading a zip file and running the commands, as indicated in http://kb.vmware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 2008939.

When you connect through the vSphere client, it seems to indicate that it has updated to 5.5, but I fear that this may not be an upgrade path has officially supported or may be missing something.

Anyone here can comment if you can upgrade between the press point with a zip and and the upgrade of the above method fix?

Thank you

Yes, it is a supported upgrade path, take a look here: VMware KB: methods of upgrade to ESXi 5.5

Summary of 5.5 ESXi upgrade methods

This table summarizes the methods supported for ESXi 5.5 upgrade:

Upgrade methods Upgrade from ESX/ESXi 4.x
5.5 ESXi
Switch from 5.0 to 5.5 ESXi ESXi Go to ESXi ESXi 5.5 5.1
vSphere Update Manager Yes Yes Yes
The CD interactive update
DVD or USB drive
Yes Yes Yes
Scripted upgrade Yes Yes Yes
vSphere Auto deploy NO. Yes, if the 5.0.x ESXi host has been deployed by using automatic deployment Yes, if the 5.1.x ESXi host has been deployed by using automatic deployment
esxcli NO. Yes Yes

And here's the documentation: update or update a host with Image profiles

Tags: VMware

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