linux升級kernel

 

1. https://www.kernel.org/ 下載kernel,如linux-4.20.3.tar.xz
2. 配置yum
3. yum install gcc
4. yum install openssl openssl-devel
5. yum install elfutils-libelf-devel
6. make mrproper
7. make clean
8. make oldconfig
9. make
10. make modules_install
11. make install
12 重啓,kernel那會有新的kernel,可是默認仍是舊的,得作修改linux

 

修改默認啓動的內核:
1.查看全部可用的內核
cat /boot/grub2/grub.cfg |grep menuentryblog

2. grub2-set-default ‘要設置的kernel,如複製紅框裏’
3. grub2-editenv list 查看內核修改結果,重啓ssl

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