Ubuntu删除多余内核的方法
发布时间：2025-05-07 点击：17
第一步：查看当前内核
rew $ uname -a linux 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
rew $ dpkg --get-selections | grep linux console-setup-linux install libselinux1:amd64 install libselinux1:i386 install linux-base install linux-firmware install linux-generic-hwe-16.04 install linux-headers-4.15.0-42 install linux-headers-4.15.0-39 install linux-headers-4.15.0-39-generic install linux-headers-4.15.0-42-generic install linux-headers-generic-hwe-16.04 install linux-image-4.15.0-39-generic install linux-image-4.15.0-42-generic install linux-image-generic-hwe-16.04 install linux-libc-dev:amd64 install linux-libc-dev:i386 install linux-modules-4.15.0-39-generic install linux-modules-4.15.0-42-generic install linux-modules-extra-4.15.0-39-generic install linux-modules-extra-4.15.0-42-generic install linux-sound-base install pptp-linux install syslinux install syslinux-common install syslinux-legacy install util-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：
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：
rew $ dpkg --get-selections | grep linux console-setup-linux install libselinux1:amd64 install libselinux1:i386 install linux-base install linux-firmware install linux-generic-hwe-16.04 install linux-headers-4.15.0-42 install linux-headers-4.15.0-42-generic install linux-headers-generic-hwe-16.04 install linux-image-4.15.0-39-generic deinstall linux-image-4.15.0-42-generic install linux-image-generic-hwe-16.04 install linux-libc-dev:amd64 install linux-libc-dev:i386 install linux-modules-4.15.0-39-generic deinstall linux-modules-4.15.0-42-generic install linux-modules-extra-4.15.0-39-generic deinstall linux-modules-extra-4.15.0-42-generic install linux-sound-base install pptp-linux install syslinux install syslinux-common install syslinux-legacy install util-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
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
rew $ sudo update-grub #根据情况选择grub/grub2
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rew $ uname -a linux 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
rew $ dpkg --get-selections | grep linux console-setup-linux install libselinux1:amd64 install libselinux1:i386 install linux-base install linux-firmware install linux-generic-hwe-16.04 install linux-headers-4.15.0-42 install linux-headers-4.15.0-39 install linux-headers-4.15.0-39-generic install linux-headers-4.15.0-42-generic install linux-headers-generic-hwe-16.04 install linux-image-4.15.0-39-generic install linux-image-4.15.0-42-generic install linux-image-generic-hwe-16.04 install linux-libc-dev:amd64 install linux-libc-dev:i386 install linux-modules-4.15.0-39-generic install linux-modules-4.15.0-42-generic install linux-modules-extra-4.15.0-39-generic install linux-modules-extra-4.15.0-42-generic install linux-sound-base install pptp-linux install syslinux install syslinux-common install syslinux-legacy install util-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：
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：
rew $ dpkg --get-selections | grep linux console-setup-linux install libselinux1:amd64 install libselinux1:i386 install linux-base install linux-firmware install linux-generic-hwe-16.04 install linux-headers-4.15.0-42 install linux-headers-4.15.0-42-generic install linux-headers-generic-hwe-16.04 install linux-image-4.15.0-39-generic deinstall linux-image-4.15.0-42-generic install linux-image-generic-hwe-16.04 install linux-libc-dev:amd64 install linux-libc-dev:i386 install linux-modules-4.15.0-39-generic deinstall linux-modules-4.15.0-42-generic install linux-modules-extra-4.15.0-39-generic deinstall linux-modules-extra-4.15.0-42-generic install linux-sound-base install pptp-linux install syslinux install syslinux-common install syslinux-legacy install util-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
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
rew $ sudo update-grub #根据情况选择grub/grub2
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