CentOS7修改内核启动顺序 CentOS7修改内核启动顺序: 1.首先查看当前系统有几个内核 cat /boot/grub2/grub.cfg |grep menuentry 2.查看当前默认内核 grub2-editenv list 3.更改默认启动内核 grub2-set-default 'CentOS Linux (3.10.0-514.26.2.el7.x86_64) 7 (Core)' 4.重启机器生效