在SecureCRT 里 敲VMware 时提示DISPLAY is not set, unable to open the VMware Workstation user interface.

当在SecureCRT中运行`vmware`命令时，出现"DISPLAY is not set, unable to open the VMware Workstation user interface"错误提示，这是因为没有正确设置DISPLAY环境变量。

要解决这个问题，可以按照以下步骤进行操作：

1. 在SecureCRT中登录到您的CentOS 7系统。

2. 打开终端并使用以下命令以root用户身份编辑`/etc/profile`文件：

sudo vi /etc/profile

3. 在文件的末尾添加以下行：

export DISPLAY=:0

这将设置DISPLAY环境变量的值为":0"。

4. 保存并关闭文件。在Vi编辑器中，按下Esc键，然后输入`:wq`并按Enter键。

5. 重新加载`/etc/profile`文件，以使更改生效：

source /etc/profile

现在，您应该能够在SecureCRT中运行`vmware`命令而不再遇到"DISPLAY is not set, unable to open the VMware Workstation user interface"错误提示了。

相关问题

The system is unable to boot automatically. The BOOT environment variable needs to be set to a bootable image.

If you are seeing the message "The system is unable to boot automatically. The BOOT environment variable needs to be set to a bootable image" on your Cisco switch, it means that the switch is unable to find a valid bootable image to start up.

To resolve this issue, you will need to set the BOOT environment variable to point to a valid bootable image. Follow these steps:

1. Connect to the switch's console port using a console cable and a terminal emulation program (such as PuTTY or SecureCRT).

2. Power on or restart the switch.

3. During the boot process, you will see the switch's bootloader prompt. Press the appropriate key (usually Esc or Ctrl+C) to enter the bootloader mode.

4. Once in the bootloader mode, you can use the following command to set the BOOT environment variable:

    switch: set BOOT variable_name

Here, `variable_name` should be replaced with the name of the bootable image file stored on the switch's flash memory.

5. After setting the BOOT environment variable, use the following command to boot the switch:

    switch: boot

The switch will then attempt to boot using the specified bootable image.

If you are unsure about the specific bootable image file or need further assistance, it is recommended to consult Cisco documentation or contact Cisco technical support for guidance.

Unable to open serial port \\.\COM3: Unable to open serial port \\.\COM3: Access is denied.

如果您在SecureCRT中遇到 "Unable to open serial port \\.\COM3: Access is denied." 的错误，这可能是由于以下原因导致的：

1. 权限问题：确保您拥有足够的权限来访问COM3串口。尝试以管理员身份运行SecureCRT，或者将自己添加到具有串口访问权限的用户组中。

2. 独占使用：确保没有其他程序正在占用COM3串口。关闭任何可能使用COM3串口的应用程序，例如串口调试工具、终端软件或其他串口通信工具。

3. 驱动程序问题：检查COM3串口的驱动程序是否正确安装并正常工作。您可以尝试更新驱动程序或重新安装串口驱动程序。

4. 系统设置冲突：某些安全软件或系统设置可能会阻止SecureCRT访问COM3串口。您可以尝试暂时禁用防火墙、安全软件或其他系统设置来排除此问题。

如果上述方法仍然无法解决问题，建议您联系SecureCRT的支持团队或设备厂商寻求进一步的技术支持。希望这些信息对您有帮助！如有其他问题，请随时提问。