"Fatal Error: 15 (Not found)" error when patching ESXi host

Products

• VMware vSphere ESXi

Issue/Introduction

If the ESXi host that you want to patch using the vSphere Update Manager has live installable VIB installed on it, then the patch staging operation followed by one more live install might display an error message similar to the following on the subsequent reboot:

Fatal Error: 15 (Not found)

Environment

VMware vSphere ESXi 6.0
VMware vSphere ESXi 6.5
VMware vSphere ESXi 5.5

Resolution

To resolve this issue:

1. Reboot the ESXi host.
   
   Note: The server boots back to the original ESXi build.
   
   
2. Install the ESXi patch again.
3. After scanning the ESXi patch baseline, skip the Stage baseline option.
4. Select the Remediate baseline option.

Additional Information

For translated versions of this article, see:

• 日本語: vSphere Update Manager を使用して VIB をパッチ適用すると再起動時に「致命的なエラー：15（見つかりません）」と表示される (2144149)
  
• 简体中文: 使用 vSphere Update Manager 修补 VIB 后，重新引导时显示 “严重错误: 15 (未找到)” (2144180)