问题

在Win10的 virtual Box中安装CentOS 虚拟机

点击虚拟机菜单栏 -> 设备 -> 安装增强功能，弹出"未能加载虚拟光盘 C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso 到虚拟电脑 CentOS."的提示。

运行安装文件报错

1. "This system is currently not set up to build kernel modules. Please install the gcc make perl packages from your distribution. ": 这是在提示我们安装 gcc、make 和 perl，可以通过安装开发工具集合"Development Tools"来解决。
2. "VirtualBox Guest Additions: Look at /var/log/vboxadd-setup.log to find out what went wrong modprobe vboxguest failed": 这里没有直接给出错误原因，而是让我们去看日志。执行 less /var/log/vboxadd-setup.log 查看日志，显示"Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"，这是在提示我们需要安装 libelf-dev, libelf-devel, elfutils-libelf-devel 三者之一，经测试，默认源中只有 elfutils-libelf-devel，安装它即可

安装依赖

dnf group install -y "Development Tools"
dnf install -y elfutils-libelf-devel