INITRAMFS.CONF(5) initramfs.conf manual INITRAMFS.CONF(5)
NAME
initramfs.conf - configuration file for mkinitramfs
DESCRIPTION
The behaviour of mkinitramfs can be modified by its configuration file.
Each line in the file can be a configuration variable, a blank line, or a comment. The
value of an variable is assigned by an statement of the form: name=[value]
Configuration options can be broken out into configuration snippets and placed in individ-
ual files in the /etc/mkinitramfs/conf.d directory. Files in this directory are always
read after the main configuration file, so you can override the settings in the main con-
fig file without editing it directly.
GENERAL VARIABLES
MODULES
Specifies the modules for the initramfs image. The default setting is most.
most adds all the framebuffer, acpi, file system, ide, sata, scsi and usb drivers.
dep tries to guess which modules are necessary for the running box.
netboot adds the base modules, network modules, but skips block devices.
list includes only modules from the additional modules list to load them early.
BUSYBOX
Include busybox utilities for the boot scripts. If set to 'n' mkinitramfs will
build an initramfs without busybox. Beware that many boot scripts need busybox
utilities.
KEYMAP
If set to 'y', the console keymap will be loaded during the initramfs stage. The
keymap will anyway be loaded by the initscripts later, and the packages that might
need input will normally set this variable automatically, so there should normally
be no need to set this.
NFS VARIABLES
BOOT Allows to use an nfs drive as the root of the drive. The default is to boot from
local media (hard drive, USB stick). Set to nfs for an NFS root share.
DEVICE
Specifies the network interface, like eth0.
ROOT Allows optional root bootarg hardcoding, when no root bootarg can be passed. A
root bootarg overrides that special setting.
NFSROOT
Defaults to auto in order to pick up value from DHCP server. Otherwise you need to
specify HOST:MOUNT.
AUTHOR
The initramfs-tools are written by Maximilian Attems <maks AT debian.org>, Jeff Bailey <jbai-
ley AT raspberryginger.com> and numerous others. Loosely based on mkinitrd.conf by Herbert
Xu.
SEE ALSO
initramfs-tools(8), mkinitramfs(8), update-initramfs(8).
2007/01/01 INITRAMFS.CONF(5)
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