6.5.1

Table Of Contents
Log in to the ESXi Shell for Troubleshooting
Perform ESXi configuration tasks with the vSphere Web Client, the vSphere CLI, or vSphere PowerCLI.
Log in to the ESXi Shell (formerly Tech Support Mode or TSM) for troubleshooting purposes only.
Procedure
1 Log in to the ESXi Shell using one of the following methods.
n
If you have direct access to the host, press Alt+F1 to open the login page on the machine's
physical console.
n
If you are connecting to the host remotely, use SSH or another remote console connection to start
a session on the host.
2 Enter a user name and password recognized by the host.
UEFI Secure Boot for ESXi Hosts
Secure boot is part of the UEFI firmware standard. With secure boot enabled, a machine refuses to load
any UEFI driver or app unless the operating system bootloader is cryptographically signed. Starting with
vSphere 6.5, ESXi supports secure boot if it is enabled in the hardware.
UEFI Secure Boot Overview
ESXi version 6.5 and later supports UEFI secure boot at each level of the boot stack for.
Note Before you use UEFI Secure Boot on a host that was upgraded to ESXi 6.5, check for compatibility
by following the instructions in Run the Secure Boot Validation Script on an Upgraded ESXi Host. If you
upgrade an ESXi host by using esxcli commands, the upgrade does not update the bootloader. In that
case, you cannot perform a secure boot on that system.
vSphere Security
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