The source code is stored in a file called mainc. c within the directory /init. The code initializes the kernel and some initial processes. ipc/: Inter-Process Communication such as signals and pipes.

Where is Linux kernel source code located?

By default, the kernel source tree should be in usr/src/ directory.

Where is kernel source code in Ubuntu?

A bzip file will be downloaded at /usr/src/ containing the source code. However, ubuntu codes are taken from the orginal linux kernel which is available for download at To understand the kernel, you must start with basics of operating system.