linux - 云主机启动，怎么选择内核版本？

Question

用了一个阿里云的ecs主机，安装的centos7.2，升级了内核： {代码...} 可是reboot重启，仍然是4.4.5，不会默认启动4.6.0，可是又不能像本地主机一样可以看到启动菜单，所以不能选择启动版本，那么，怎么做才可以呢？

黄舟 · Answer

vim /etc/grub.conf

Change default=0 to default=1

The sequence of serial numbers is based on your rpm -qa | grep kernel results, starting from 0, so when you switch to kernel-ml-4.6.0-1.el7.elrepo.x86_64 it is 1

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