查看已安装内核：dpkg --get-selections |grep linux-image

查看正在使用的内核：uname -a

删除旧内核：

sudo apt-get remove linux-image-x.xx.x-xx-generic

sudo apt-get remove linux-image-extra-x.xx.x-xx-generic  

或用这个命令移除：

sudo dpkg --purge linux-image-x.x.x-xx-generic

禁止更新内核，需时间来验证

sudo apt-mark hold linux-image-x.xx.x-xx-generic

sudo apt-mark hold linux-image-extra-x.xx.x-xx-generic

如果需要恢复原来的设定的话即允许更新内核，执行如下命令即可：

sudo apt-mark unhold linux-image-x.xx.x-xx-generic

sudo apt-mark unhold linux-image-extra-x.xx.x-xx-generic

------------------------------------------------------------
针对个人的电脑，操作：

sudo apt-mark hold linux-headers-4.15.- \

linux-headers-4.15.--generic \

linux-image-4.15.--generic \

linux-modules-4.15.--generic \

linux-modules-extra-4.15.--generic

sudo apt-mark hold linux-headers-4.15.- linux-headers-4.15.--generic linux-image-4.15.--generic linux-modules-4.15.--generic linux-modules-extra-4.15.--generic

echo "linux-headers-4.15.0-29 hold" | dpkg --set-selections

echo "linux-headers-4.15.0-29-generic hold" | dpkg --set-selections

echo "linux-image-4.15.0-29-generic hold" | dpkg --set-selections

echo "linux-modules-4.15.0-29-generic hold" | dpkg --set-selections

echo "linux-modules-extra-4.15.0-29-generic hold" | dpkg --set-selections

@ https://blog.csdn.net/weixin_40522162/article/details/80302735