从软件包安装内核树
确认内核树
~$ dpkg-query -s linux-headers-$(uname -r)
dpkg-query: package 'linux-headers-5.4.0-67-generic' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files.
查看内核树（再次确认）
~$ ls -l /usr/src/linux-headers-$(uname -r)
ls: cannot access '/usr/src/linux-headers-5.4.0-67-generic': No such file or directory
查找内核树包（系统可能小版本升级，而该小版本无内核树包）
~$ apt search linux-headers-$(uname -r)
Sorting... Done
Full Text Search... Done
linux-headers-5.19.0-43-generic/now 5.19.0-43.44~22.04.1 amd64 [installed,local]
Linux kernel headers for version 5.19.0 on 64 bit x86 SMP
安装内核树
sudo apt update
sudo apt install linux-headers-$(uname -r)
确认内核树
~$ dpkg-query -s linux-headers-$(uname -r)
Package: linux-headers-5.4.0-67-generic
Status: install ok installed
Priority: optional
Section: devel
Installed-Size: 14500
Maintainer: Ubuntu Kernel Team <kernel-team@lists.ubuntu.com>
Architecture: amd64
Source: linux
Version: 5.4.0-67.75
Provides: linux-headers, linux-headers-3.0
Depends: linux-headers-5.4.0-67, libc6 (>= 2.14), libelf1 (>= 0.142), libssl1.1 (>= 1.1.0)
Description: Linux kernel headers for version 5.4.0 on 64 bit x86 SMP
This package provides kernel header files for version 5.4.0 on
64 bit x86 SMP.
.
This is for sites that want the latest kernel headers. Please read
/usr/share/doc/linux-headers-5.4.0-67/debian.README.gz for details.
查看内核树
~$ ls -l /usr/src/linux-headers-$(uname -r)
total 1612
drwxr-xr-x 3 root root 4096 Mar 18 2021 arch
lrwxrwxrwx 1 root root 31 Feb 20 2021 block -> ../linux-headers-5.4.0-67/block
lrwxrwxrwx 1 root root 31 Feb 20 2021 certs -> ../linux-headers-5.4.0-67/certs
lrwxrwxrwx 1 root root 32 Feb 20 2021 crypto -> ../linux-headers-5.4.0-67/crypto
lrwxrwxrwx 1 root root 39 Feb 20 2021 Documentation -> ../linux-headers-5.4.0-67/Documentation
lrwxrwxrwx 1 root root 33 Feb 20 2021 drivers -> ../linux-headers-5.4.0-67/drivers
lrwxrwxrwx 1 root root 28 Feb 20 2021 fs -> ../linux-headers-5.4.0-67/fs
drwxr-xr-x 4 root root 4096 Mar 18 2021 include
lrwxrwxrwx 1 root root 30 Feb 20 2021 init -> ../linux-headers-5.4.0-67/init
lrwxrwxrwx 1 root root 29 Feb 20 2021 ipc -> ../linux-headers-5.4.0-67/ipc
lrwxrwxrwx 1 root root 32 Feb 20 2021 Kbuild -> ../linux-headers-5.4.0-67/Kbuild
lrwxrwxrwx 1 root root 33 Feb 20 2021 Kconfig -> ../linux-headers-5.4.0-67/Kconfig
drwxr-xr-x 2 root root 4096 Mar 18 2021 kernel
lrwxrwxrwx 1 root root 29 Feb 20 2021 lib -> ../linux-headers-5.4.0-67/lib
lrwxrwxrwx 1 root root 34 Feb 20 2021 Makefile -> ../linux-headers-5.4.0-67/Makefile
lrwxrwxrwx 1 root root 28 Feb 20 2021 mm -> ../linux-headers-5.4.0-67/mm
-rw-r--r-- 1 root root 1618327 Feb 20 2021 Module.symvers
lrwxrwxrwx 1 root root 29 Feb 20 2021 net -> ../linux-headers-5.4.0-67/net
lrwxrwxrwx 1 root root 33 Feb 20 2021 samples -> ../linux-headers-5.4.0-67/samples
drwxr-xr-x 8 root root 12288 Mar 18 2021 scripts
lrwxrwxrwx 1 root root 34 Feb 20 2021 security -> ../linux-headers-5.4.0-67/security
lrwxrwxrwx 1 root root 31 Feb 20 2021 sound -> ../linux-headers-5.4.0-67/sound
drwxr-xr-x 3 root root 4096 Mar 18 2021 tools
lrwxrwxrwx 1 root root 32 Feb 20 2021 ubuntu -> ../linux-headers-5.4.0-67/ubuntu
lrwxrwxrwx 1 root root 29 Feb 20 2021 usr -> ../linux-headers-5.4.0-67/usr
lrwxrwxrwx 1 root root 30 Feb 20 2021 virt -> ../linux-headers-5.4.0-67/virt