Translations:Kernel/Configuration/47/en

This command executes /sbin/installkernel, which is part of the sys-apps/debianutils package. The new kernel is installed into /boot/vmlinuz-{version}. If a symbolic link /boot/vmlinuz already exists, it is refreshed by making a link from /boot/vmlinuz to the new kernel, and the previously installed kernel is available as /boot/vmlinuz.old. (installkernel man page). The same for config and System.map files. These symlinks are handy, because they always point to the newest kernel without changing the file path (e.g. they can be used in the bootloader configuration).