Secure Boot<\/strong> section, check the status.<\/li>\n<\/ol>\n\n\n\n\ud83d\udccc If Secure Boot is disabled, proceed to the next steps to enable it.<\/em><\/p>\n\n\n\n<\/span>Step 2: Enable Secure Boot in ESXi<\/strong><\/span><\/h2>\n\n\n\nSecure Boot requires UEFI firmware<\/strong>. If your server is using Legacy BIOS mode<\/strong>, you must switch to UEFI first.<\/p>\n\n\n\n<\/span>1. Enable UEFI Boot Mode in BIOS<\/strong><\/span><\/h3>\n\n\n\n\n- Reboot the ESXi Host<\/strong> and enter the BIOS\/UEFI settings (usually by pressing
F2<\/code>, Del<\/code>, or Esc<\/code> during startup).<\/li>\n\n\n\n- Navigate to the Boot Settings<\/strong> or Advanced Boot Options<\/strong>.<\/li>\n\n\n\n
- Change Boot Mode<\/strong> from
Legacy<\/code> to UEFI<\/code>.<\/li>\n\n\n\n- Save and Exit BIOS.<\/li>\n<\/ol>\n\n\n\n
<\/span>2. Enable Secure Boot in UEFI<\/strong><\/span><\/h3>\n\n\n\n\n- Re-enter the BIOS\/UEFI settings.<\/li>\n\n\n\n
- Find the Secure Boot<\/strong> option under Security<\/strong> or Boot Configuration<\/strong>.<\/li>\n\n\n\n
- Set Secure Boot Mode<\/strong> to Enabled<\/strong>.<\/li>\n\n\n\n
- Save changes and reboot the ESXi host.<\/li>\n<\/ol>\n\n\n\n
<\/span>Step 3: Verify Secure Boot in ESXi After Enabling<\/strong><\/span><\/h2>\n\n\n\nAfter enabling Secure Boot, confirm that it is working correctly.<\/p>\n\n\n\n
<\/span>Check Secure Boot via ESXi Shell<\/strong><\/span><\/h3>\n\n\n\n\n- SSH into the ESXi host.<\/li>\n\n\n\n
- Run: bash
esxcli system settings encryption get<\/li>\n\n\n\n - You should see Secure Boot: Enabled<\/strong>.<\/li>\n<\/ol>\n\n\n\n
<\/span>Verify Secure Boot Using vSphere Client<\/strong><\/span><\/h3>\n\n\n\n\n- Open the vSphere Web Client.<\/li>\n\n\n\n
- Go to Host > Configure > Security Profile<\/strong>.<\/li>\n\n\n\n
- Check the Secure Boot<\/strong> status\u2014it should say Enabled<\/strong>.<\/li>\n<\/ol>\n\n\n\n
\ud83d\udccc If Secure Boot is still disabled, check the BIOS settings again and ensure UEFI mode is enabled.<\/em><\/p>\n\n\n\n<\/span>Step 4: Troubleshooting Common Issues<\/strong><\/span><\/h2>\n\n\n\nIf Secure Boot fails to enable, consider these fixes:<\/p>\n\n\n\n
<\/span>Issue 1: Secure Boot Option is Missing in BIOS<\/strong><\/span><\/h3>\n\n\n\n\ud83d\udd39 Fix:<\/strong> Update your server\u2019s firmware to the latest version.<\/p>\n\n\n\n<\/span>Issue 2: ESXi Fails to Boot After Enabling Secure Boot<\/strong><\/span><\/h3>\n\n\n\n\ud83d\udd39 Fix:<\/strong><\/p>\n\n\n\n\n- Ensure UEFI firmware is enabled<\/strong>.<\/li>\n\n\n\n
- Some third-party drivers may not be signed\u2014check and replace them with VMware-certified drivers.<\/li>\n<\/ul>\n\n\n\n
<\/span>Issue 3: Secure Boot is Enabled, but ESXi Still Shows It as Disabled<\/strong><\/span><\/h3>\n\n\n\n\ud83d\udd39 Fix:<\/strong><\/p>\n\n\n\n\n- Reboot ESXi and enter the BIOS again.<\/li>\n\n\n\n
- Disable and then re-enable Secure Boot.<\/li>\n<\/ul>\n\n\n\n
<\/span>Step 5: Ensure All ESXi Components are Secure Boot Compatibl<\/strong><\/span><\/h2>\n\n\n\nTo prevent boot issues, make sure all drivers, modules, and VIBs (VMware Installation Bundles)<\/strong> are signed.<\/p>\n\n\n\n<\/span>Check Installed VIBs for Secure Boot Compatibility<\/strong><\/span><\/h3>\n\n\n\nRun:<\/p>\n\n\n\n
bash
esxcli software vib list | grep -i \"unsigned\"
<\/pre>\n\n\n\nIf you see any unsigned<\/strong> VIBs, update them with signed versions or remove them.<\/p>\n\n\n\n