Upgrade ESXi 4.0 to ESXi 4.1

1. You need CLI – Download Here

For or Linux and install on your workstation.

2. Download the Upgrade Package for 4.0 to 4.1

3. Power off your VM’s and put the host into maintenance mode

4. From the CLI prompt

vihostupdate.pl – hostname or IP -i –b d:\downloads\upgrade-from-4.0-to-4.1.0-0.0.260247-release.zip -B ESXi410-GA

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