You can configure Update Manager to let other software initiate remediation of PXE booted ESXi hosts. The remediation installs patches and software modules on the hosts, but typically the host updates are lost after a reboot.

The global setting in the Update Manager Configuration tab enables solutions such as ESX Agent Manager or Cisco Nexus 1000V to initiate remediation of PXE booted ESXi hosts. In contrast, the Enable patch remediation of powered on PXE booted ESXi hosts setting in the Remediate wizard enables Update Manager to patch PXE booted hosts.

To retain updates on stateless hosts after a reboot, use a PXE boot image that contains the updates. You can update the PXE boot image before applying the updates with Update Manager, so that the updates are not lost because of a reboot. Update Manager itself does not reboot the hosts because it does not install updates requiring a reboot on PXE booted ESXi hosts.

Connect the vSphere Client to a vCenter Server system with which Update Manager is registered, and on the Home page, click Update Manager under Solutions and Applications. If your vCenter Server system is part of a connected group in vCenter Linked Mode, you must specify the Update Manager instance to use, by selecting the name of the corresponding vCenter Server system in the navigation bar.


On the Configuration tab, under Settings, click ESX Host/Cluster Settings.


To enable installation of software for solutions on PXE booted ESXi hosts, select Allow installation of additional software on PXE booted ESXi hosts.


Click Apply.