第一步：查看当前内核
|
1
2
|
rew $ uname -aLinux rew 4.15.0-42-generic #45~16.04.1-Ubuntu SMP Mon Nov 19 13:02:27 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
当前使用版本为： 4.15.0-42-generic
第二步：查看所有内核
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
rew $ dpkg --get-selections | grep linuxconsole-setup-linux installlibselinux1:amd64 installlibselinux1:i386 installlinux-base installlinux-firmware installlinux-generic-hwe-16.04 installlinux-headers-4.15.0-42 installlinux-headers-4.15.0-39 installlinux-headers-4.15.0-39-generic installlinux-headers-4.15.0-42-generic installlinux-headers-generic-hwe-16.04 installlinux-image-4.15.0-39-generic installlinux-image-4.15.0-42-generic installlinux-image-generic-hwe-16.04 installlinux-libc-dev:amd64 installlinux-libc-dev:i386 installlinux-modules-4.15.0-39-generic installlinux-modules-4.15.0-42-generic installlinux-modules-extra-4.15.0-39-generic installlinux-modules-extra-4.15.0-42-generic installlinux-sound-base installpptp-linux installsyslinux installsyslinux-common installsyslinux-legacy installutil-linux install |
第三步：移除冗余内核
所有 39 版本的对我来说都是多余的，进行删除：
|
1
2
3
4
5
6
|
rew $ sudo apt-get remove \linux-headers-4.15.0-39 \linux-headers-4.15.0-39-generic \linux-image-4.15.0-39-generic \linux-modules-4.15.0-39-generic \linux-modules-extra-4.15.0-39-generic |
卸载后重新检查：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
rew $ dpkg --get-selections | grep linuxconsole-setup-linux installlibselinux1:amd64 installlibselinux1:i386 installlinux-base installlinux-firmware installlinux-generic-hwe-16.04 installlinux-headers-4.15.0-42 installlinux-headers-4.15.0-42-generic installlinux-headers-generic-hwe-16.04 installlinux-image-4.15.0-39-generic deinstalllinux-image-4.15.0-42-generic installlinux-image-generic-hwe-16.04 installlinux-libc-dev:amd64 installlinux-libc-dev:i386 installlinux-modules-4.15.0-39-generic deinstalllinux-modules-4.15.0-42-generic installlinux-modules-extra-4.15.0-39-generic deinstalllinux-modules-extra-4.15.0-42-generic installlinux-sound-base installpptp-linux installsyslinux installsyslinux-common installsyslinux-legacy installutil-linux install |
状态为 deinstall 即已经卸载，如果觉得看着不舒服的话可以使用 purge 连配置文件里一起彻底删除，清理内核列表
|
1
2
3
4
5
6
|
rew $ sudo apt-get purge \linux-headers-4.15.0-39 \linux-headers-4.15.0-39-generic \linux-image-4.15.0-39-generic \linux-modules-4.15.0-39-generic \linux-modules-extra-4.15.0-39-generic |
第四步：更新系统引导
删除内核后需要更新 grub 移除失效的启动项
|
1
|
rew $ sudo update-grub #根据情况选择grub/grub2 |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://www.jianshu.com/p/f284bc90944f
