This blog post is not about the L1 Terminal Fault (L1TF -> VMware KB56931) but about the HTAware Mitigation tool version 1.0.0.9 (HTAwareMitigation-1.0.0.9.zip) that seems to have issues when used on single hosts (instead of clusters) – here is the problem that I have observed.

You run the command:

Set-HTAwareMitigationConfig -VMhostName <hostname> -Enable

Followed by

Get-HTAwareMitigationConfig -VMhostName <hostname>

Get-HTAwareMitigationConfig not working on single host

 

As you might see the “Set-HTAwareMitigationConfig -VMhostname <hostname>” command doesn’t seem to do anything!

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So, you find yourself in a situation where you have lost the root password for your ESXi host(s). Luckily there are multiple ways of resetting it – but the best method depends on the exact situation. Ill try to outline three different scenarios (of course, more exists) – maybe your are placed in a completely different scenario but maybe this post can help you anyway.

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