Where do I find the version of a Linux kernel source tree?

I have downloaded from a hardware vendor just a tarball of their Linux source tree (no Git repository metadata), is there a way to find out the version number of the kernel?

Is the version number usually stored in a file somewhere in the source tree?

I'd like to be able to do this without compiling and running the kernel.

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最佳答案

You can find the version by running

make kernelversion

In the source tree

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Check the top-level Makefile, an example of which is here. At the top of that, you should see something like:

VERSION = 3
PATCHLEVEL = 1
SUBLEVEL = 0
EXTRAVERSION = -pax
NAME = Custom Pax Version

The (admittedly minor) advantage of this method is that you only need the ability to view the files themselves rather than having to run a build process.

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Yet another solution: in the older times include/linux/version.h, currently include/generated/uapi/linux/version.h, but only after at least a partially successful compilation.

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In the kernel source tree, check the root directory Makefile to get the kernel version as below.


Example as below:


$ head Makefile
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 18
SUBLEVEL = 0
EXTRAVERSION = -rc3
NAME = Superb Owl
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
# More info can be located in ./README


From the above we get the source code version is 5.18.0-rc3
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In the Linux source tree's root file, check the Makefile content. In its beginning part:

# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
SUBLEVEL = 67

Then you linux source tree's version is: 4.14.67


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