5. Kernel Location

What happens when you install a new kernel? Well it actually adds a couple of files to your system, these files are usually added to the /boot directory.

You will see multiple files for different kernel versions:

• vmlinuz - this is the actual linux kernel


• initrd - as we've discussed before, the initrd is used as a temporary file system, used before loading the kernel


• System.map - symbolic lookup table


• config - kernel configuration settings, if you are compiling your own kernel, you can set which modules can be loaded

If your /boot directory runs out of space, you can always delete old versions of these files or just use a package manager, but be careful when doing maintenance in this directory and don't accidentally delete the kernel you are using.