26 Aug 2010 by Simon Greaves
Check for a scratch partition in the Software Advanced Settings in the Configuration tab of the vSphere Client. If one doesn’t exist configure one and reboot the host before proceeding with the upgrade. (See here for more info)
Download the upgrade-from-ESXi4.0-to-4.1.0-0.0.build#-release.zip by clicking the VMware ESXi 4.1 Installable option. Save it on the machine with the vSphere CLI installed on it.
Power off running machines and place host in maintenance mode.
Install the bulletin by running the following from the vSphere CLI.
CD "C:Program FilesVMwareVMware vSphere CLIbin" Vihostupdate.pl –server_ host_name_of_ IP_address -i -b location_of_the_ESXi_upgrade_ZIP bundle - B ESXi410-GA-esxupdate
Enter username and password when prompted for it by the ESXi host
Install the upgrade bulletin by running the following from the vSphere CLI
Vihostupdate.pl --server host name or IP address -i -b location of the ESXi upgrade ZIP bundle -B ESXi410-GA Enter username and password when prompted for it by the ESXi host
Verify that the bulletins are installed on the ESXi host by running the following.
vihostupdate.pl --server host name or IP address –query
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