第一步：查看當前內核
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
當前使用版本為： 4.15.0-42-generic
第二步：查看所有內核
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：移除冗余內核
所有 39 版本的對我來說都是多余的，進行刪除：
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
卸載后重新檢查：
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
狀態為 deinstall 即已經卸載，如果覺得看著不舒服的話可以使用 purge 連配置文件里一起徹底刪除，清理內核列表
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：更新系統引導
刪除內核后需要更新 grub 移除失效的啟動項
rew $ sudo update-grub #根據情況選擇grub/grub2
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持VEVB武林網。
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