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Upgrading ESX/ESXi 3.5 or 4.0 to ESX/ESXi 4.1 (1022140)


This article provides steps which may be useful when upgrading from ESX/ESXi 3.5 or 4.0 to ESX/ESXi 4.1.
For information on upgrading from ESX 3.x, see Upgrading to ESX 4.1 and vCenter Server 4.1 best practices (1022104). 

: This article assumes that you have read:


To evaluate which upgrade method you should use when upgrading your ESX or ESXi host to 4.1, see Updating ESX 4.x to a newer released update (1016209).
This table outlines an upgrade matrix containing upgrade options for applicable versions of ESX/ESXi:
Note: To get the appropriate version of the ESX/ESXi 4.1 upgrade package as outlined in the table, visit the vSphere Download Center.

Version From

Update Manager 4.1* 1

vihostupdate *2

(Service Console) *3 *4

ESXESX 3.5.xYes (ISO)NoNoYes (ISO)
ESX 4.0Yes (ZIP)Yes (ZIP)Yes (ZIP)No
ESXi (Embedded)ESXi 3.5.xYes (ZIP)NoNoNo
ESXi 4.0Yes (ZIP)Yes (ZIP)NoNo
ESXi (Installable)ESXi 3.5.xYes (ZIP)NoNoNo
ESXi 4.0Yes (ZIP)Yes (ZIP)NoNo
*1 - See the VMware vCenter Update Manager Administration Guide.
*2 - For more information, see the vSphere Upgrade Guide.
*3 - For more information, see About the esxupdate Utility in the ESX 4 Patch Management Guide.
*4 - See article Performing an offline upgrade from ESX 3.x to ESX 4.x (1009440).

Upgrading using VMware Update Manager

Upgrading using esxupdate


Upgrading using vihostupdate


esx-upgrade install-upgrade-esx

See Also

Update History

07/28/2010 - Updated chart, linked article 1009440. 08/05/2010 - Added link to download site. 08/25/2010 - Added vihostupdate, vum, and esxupdate videos

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