You have the possibility to update an ESXi Host with vCenter ( Baseline or Image) or directly through the CLI on the ESXi.
With both solutions, you need to set the host in maintenance mode and reboot it.
Update / Upgrade / Patch Offline
- Download the offline bundle zip file from VMware site.
- Upload the bundle zip file to a datastore accessible by the host.
- Place the host you want to upgrade into Maintenance Mode.
- SSH into the desired ESXi Host
- Execute esxcli command
esxcli software sources profile list -d /vmfs/volumes/<datastore path>/VMware-ESXi-<version>-depot.zip
6. Execute esxcli command
esxcli software profile update -p <ESX profile name> -d /vmfs/volumes/<datastore path>/VMware-ESXi-<version>-depot.zip