Filesystem Hierarchy Standard

3.5 /boot : Static files of the boot loader

3.5.1 Purpose

This directory contains everything required for the boot process except configuration files and the map installer. Thus /boot stores data that is used before the kernel begins executing user-mode programs. This may include saved master boot sectors, sector map files, and other data that is not directly edited by hand.[footnote 2]

3.5.2 Specific Options

The operating system kernel must be located in either / or /boot.[footnote 3]

[2] Programs necessary to arrange for the boot loader to be able to boot a file must be placed in /sbin. Configuration files for boot loaders must be placed in /etc.

[3] On some i386 machines, it may be necessary for /boot to be located on a separate partition located completely below cylinder 1024 of the boot device due to hardware constraints.

Certain MIPS systems require a /boot partition that is a mounted MS-DOS filesystem or whatever other filesystem type is accessible for the firmware. This may result in restrictions with respect to usable filenames within /boot (only for affected systems).

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Translated by troff2html v1.5 on 29 March 2002 by Daniel Quinlan