(转载)
以CentOS7和Windows为双系统,且后安装CentOS时,会出现开机没有Windows引导的问题。
下图,倒数第二行可以看到Windows引导项:
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdllpNW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OU1XWXpaamcyTnpSaVpUQXdNMkZtTXpSa1ltRmtZell3TURVeVltTTJNVGt2TXpka01USm1NbVZpT1RNNE9XSTFNRFkyTW1VNE5qSm1PR1F6TldVMVpHUmxOakV4Tm1WbVpDNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
修复
运行终端(terminal),键入"su root"以超级管理员身份运行,如下图:
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdllTNW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OU5qZGxNR1kzWXpZNFptUTJNamMzWm1VNU1USXpNak00TVRnek9URm1Oak12TkRjeU16QTVaamM1TURVeU9UZ3lNamt5WldZMVlXSmxaR1pqWVRkaVkySXdZalEyWkRSbFlpNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
不会修复引导的童鞋,基本上是刚刚装完CentOS7系统,等重启开机时才发现Windows引导项不见了,
所以,对于刚装好的系统,应该先升级和更新。 键入"yum upgrade",会列出需要升级的文件,检查完
更新会提示"Is this so [y/d/N]",键入"yes"即开始下载安装升级。如图:![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdlp5NW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OVpEa3pZakprT0RZd01qUTJaakl4Wm1NNU16UTFaVFV6WXpZeU5UWmlNekV2TUdSa056a3hNak01TjJSa1lURTBOR0V6WXpVd1ptTm1ZbUZpTjJRd1lUSXdaR1kwT0RabVlTNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdlppNW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OU4yWXlZek5pTm1FMllXUXdaamN3TTJVMllqSTVOV1JqTXpobVlUVXhORGd2WkRVeVlUSTRNelF6TkRsaU1ETXpZbUZsT0dFNU1XRTNNV1JqWlRNMlpETmtOVE01WW1RME9TNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
运行终端(terminal),键入"su root"以超级管理员身份运行,如下图:
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdllTNW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OU5qZGxNR1kzWXpZNFptUTJNamMzWm1VNU1USXpNak00TVRnek9URm1Oak12TkRjeU16QTVaamM1TURVeU9UZ3lNamt5WldZMVlXSmxaR1pqWVRkaVkySXdZalEyWkRSbFlpNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
不会修复引导的童鞋,基本上是刚刚装完CentOS7系统,等重启开机时才发现Windows引导项不见了,
所以,对于刚装好的系统,应该先升级和更新。 键入"yum upgrade",会列出需要升级的文件,检查完
更新会提示"Is this so [y/d/N]",键入"yes"即开始下载安装升级。如图:
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdlp5NW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OVpEa3pZakprT0RZd01qUTJaakl4Wm1NNU16UTFaVFV6WXpZeU5UWmlNekV2TUdSa056a3hNak01TjJSa1lURTBOR0V6WXpVd1ptTm1ZbUZpTjJRd1lUSXdaR1kwT0RabVlTNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdlppNW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OU4yWXlZek5pTm1FMllXUXdaamN3TTJVMllqSTVOV1JqTXpobVlUVXhORGd2WkRVeVlUSTRNelF6TkRsaU1ETXpZbUZsT0dFNU1XRTNNV1JqWlRNMlpETmtOVE01WW1RME9TNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
升级完后检查更新,键入"yum update",如图:
由于Linux系统不能识别Windows操作系统的分区,所以还得安装ntfs-3g,而ntfs-g在源"epel-release.noarch" 中,
所以安装nefs-3g之前,要先安装源。
执行"yum search epel",查找到该源后,安装它即可,执行"yum install epel-release.noarch",如图:
这一步安装ntfs-3g,执行"yum install ntfs-3g"如图:
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdllTNW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OVpqRmpNbVJoT0RZek1XUmlZalptWkRJMU5XSmxOVEkyTXpreU5HRmlZVFl2WTJWbVl6RmxNVGM0WVRneVlqa3dNV1ZoT0RoaFpEUmxOMkk0WkdFNU56Y3pPVEV5WldaaE1pNXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)
最后,自动修复引导项即可。执行"grub2-mkconfig -o /boot/grub2/grub.conf"会查找到引导项并添加到grub文件中去,
该操作避免了手动添加时可能出现的错误,如下图可以看到系统引导项已修复成功:
![CentOS下成功修复了Windows的grub引导 CentOS下成功修复了Windows的grub引导](https://image.shishitao.com:8440/aHR0cHM6Ly9iYnNtYXguaWthZmFuLmNvbS9zdGF0aWMvTDNCeWIzaDVMMmgwZEhBdmFDNW9hWEJvYjNSdmN5NWlZV2xrZFM1amIyMHZaWGh3TDNjOU5UQXdMM05wWjI0OU9XUmlPRGMxTTJVNE0yUTBZak14WTJZd00yTTVOR0ppWWpka056STNObVl2TkRJeE5qWmtNakkwWmpSaE1qQmhORGt4TnpZMU1tSmhPVGcxTWprNE1qSTNNakJsWkRBMk55NXFjR2M9LmpwZw%3D%3D.jpg?w=700&webp=1)