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Where can I find the Linux kernel in Debian?
Like anything that can be useful on a Debian system, the Linux kernel sources are available in a package. To retrieve them, just install the linux-source-version package. The apt search ^linux-source command lists the various kernel versions packaged by Debian.
What happens if you compile your own kernel in Debian?
If you choose to compile your own kernel, you must accept the consequences: Debian cannot ensure security updates for your custom kernel. By keeping the kernel provided by Debian, you benefit from updates prepared by the Debian Project’s security team.
Which is the latest version of the Linux kernel?
The remainder of this section focuses on the 4.19 version of the Linux kernel, but the examples can, of course, be adapted to the particular version of the kernel that you want. We assume the linux-source-4.19 package has been installed. It contains /usr/src/linux-source-4.19.tar.xz, a compressed archive of the kernel sources.
What kind of modifications are there in Debian?
These modifications include backports of fixes/features/drivers from newer kernel versions, new features not yet (entirely) merged in the upstream Linux tree, and sometimes even Debian specific changes.
How to check the installed Linux kernel version?
As noted in the question, the currently running kernel can be obtained via: In contrast, the version of the latest kernel package needs to be taken from the package manager.
Can you still install old versions of Debian?
The “normal” repositories for these old versions do not exist anymore, which means you cannot install new software or update existing packages using apt. This tutorial shows how you can modify your /etc/apt/sources.list to still get packages for your old Debian version using apt.
How to install kernel headers in Ubuntu and Debian?
Before you can install the appropriate kernel headers, update your packages index, in order to grab information about the latest package releases, using the following command. $ sudo apt update Then run the following command that follows to install the Linux Kernel headers package for your kernel version.