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
dpkg --get-selections | grep linux
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
多余的内核可以通过命令删除 需要删除header和image
sudo apt-get remove linux-image-*.*.*-**(*号用你想删除的实际情况改写)
sudo apt-get remove linux-headers-*.*.*-**(*号用你想删除的实际情况改写)
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:
dpkg --get-selections | grep linux
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
还有一种通过正则表达式匹配内核然后除最新的统统统统删除的。
dpkg -l 'linux-*' | sed '/^ii/!d;/'"$uname -r | sed "s/-/\1/")"'/d;s/^[^ ]* [^ ]* .*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge
作者:hwrenx
链接:https://www.jianshu.com/p/f284bc90944f