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第一步:查看當(dāng)前內(nèi)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
當(dāng)前使用版本為: 4.15.0-42-generic
第二步:查看所有內(nèi)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:移除冗余內(nèi)核
所有 39 版本的對我來說都是多余的,進(jìn)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 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
狀態(tài)為 deinstall 即已經(jīng)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(nèi)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(tǒng)引導(dǎo)
刪除內(nèi)核后需要更新 grub 移除失效的啟動項(xiàng)
rew $ sudo update-grub #根據(jù)情況選擇grub/grub2
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