红帽全球峰会7.7. 使用 grubby 更改默认引导条目
使用 grubby 工具，您可以更改默认引导条目。
流程
- 要在指定为默认内核的内核中进行持久更改，请输入：
grubby --set-default /boot/vmlinuz-4.18.0-372.9.1.el8.x86_64
# grubby --set-default /boot/vmlinuz-4.18.0-372.9.1.el8.x86_64
The default is /boot/loader/entries/67db13ba8cdb420794ef3ee0a8313205-4.18.0-372.9.1.el8.x86_64.conf with index 0 and kernel /boot/vmlinuz-4.18.0-372.9.1.el8.x86_64
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