Debian/Ubuntu 清理内核
不使用的内核占用空间,清理掉。
查看当前正在使用的内核
$ uname -r
4.19.0-0.bpo.2-amd64
列出所有已安装内核
$ dpkg -l | grep linux-
ii firmware-linux-free 3.4 all Binary firmware for various drivers in the Linux kernel
ii firmware-linux-nonfree 20190114-1~bpo9+2 all Binary firmware for various drivers in the Linux kernel (meta-package)
ii linux-base 4.5 all Linux image base package
ii linux-image-4.14.0-0.bpo.3-amd64 4.14.13-1~bpo9+1 amd64 Linux 4.14 for 64-bit PCs
ii linux-image-4.19.0-0.bpo.2-amd64 4.19.16-1~bpo9+1 amd64 Linux 4.19 for 64-bit PCs (signed)
ii linux-image-amd64 4.19+102~bpo9+1 amd64 Linux for 64-bit PCs (meta-package)
卸载旧内核
$ sudo apt purge linux-image-4.14.0-0.bpo.3-amd64
更新 grub
$ sudo update-grub