Serial and Parallel Ports are not visible after Upgrading VMware Virtual Hardware version to 11
search cancel

Serial and Parallel Ports are not visible after Upgrading VMware Virtual Hardware version to 11

book

Article ID: 324771

calendar_today

Updated On:

Products

VMware vSphere ESXi

Issue/Introduction

Symptoms:
  • Virtual machines running on Hardware version 10 and earlier can see the ports inside the Guest OS.
    • After the Hardware version is upgraded to version 11, Serial and Parallel ports are missing inside the Guest OS.
      • Newly created virtual machine does not have these Serial and Parallel ports.
      • Ports seen on virtual machine with Hardware version 10:
        • Communications Port (COM1)
        • Communications Port (COM2)
        • Printer Port (LPT1)


      Environment

      VMware vSphere ESXi 6.0

      Resolution

      Starting with Virtual Hardware version 11, this is an expected behavior. This feature is changed to minimize the surface attack on the virtual machines

      As a workaround, add the Ports manually.


      Additional Information

      简体中文:将 VMware 虚拟硬件版本升级到 11 后看不到串行和并行端口

      VMware 仮想ハードウェアのバージョンを 11 にアップグレードした後、シリアル ポートとパラレル ポートが表示されない