Archive

Month: February 2023

UCS

ESXi Check Secure Boot Status: secureBoot.py, Enabling Secure Boot (Cisco UCS) and the “Host secure boot was disabled” Alarm

Check ESXi Secure Boot status and readiness with secureBoot.py -s/-c, enable it in firmware or a Cisco UCS boot policy, and fix unsigned-VIB failures.

7 min read
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ESXi

“Legacy boot detected” (KB 84233): Moving ESXi from Legacy BIOS to UEFI

ESXi warns “Legacy boot detected” and points to KB 84233? What it means, why 8.0 can fail with Error 10 (Out of resources), and how to switch to UEFI.

3 min read
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ESXi

List of vSphere 8.0 Knowledge base articles and Important Links (89756)

List of Knowledge base articles for vSphere 8.0 – [Main KB] – List of vSphere 8.0 Knowledge base articles and Important Links (89756)

2 min read
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ESXi

“SECUREBOOT: Image DENIED.” – Virtual Machine with Windows Server 2022 KB5022842 (OS Build 20348.1547) configured with secure boot enabled not booting up (90947)

Windows Server 2022 VMs with Secure Boot fail to boot with “SECUREBOOT: Image DENIED” after KB5022842. Cause and the fix on ESXi (KB 90947).

3 min read
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