No boot device available. Current boot mode is set to BIOS. Please ensure compatible bootable media

dell R720xd,由原来的windows更换为centos.系统单独在一个raid 0里,将原来的raio 0初始化后安装centos,安装过程很顺利,

安装后重启提示

No boot device available.
Current boot mode is set to BIOS.
 Please ensure compatible bootable media is available.
Use the system setup program to change the boot mode as needed.
从字面意思看是启动模式不可用,琢磨一番后开始寻找百度,


最终发现是raid的配置不正确,raid里面有一个配置启动项的

按ctrl+r进入raid配置,找到ctrl mgmt选项。将select boot device里的设备更改为centos所在的阵列,再次启动,正常No boot device available. Current boot mode is set to BIOS. Please ensure compatible bootable media_第1张图片

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