Section: initramfs.conf manual (5)
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initramfs.conf - configuration file for mkinitramfs
The behaviour of
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 individual files in the /etc/initramfs-tools/conf.d directory. Files
in this directory are always read after the main configuration file,
so you can override the settings in the main config file without editing it
Specifies the modules for the initramfs image.
/usr/share/initramfs-tools/modules.d/* are always included in the
initramfs, and are loaded early in the boot process.
Modules listed in
list doesn't load any additional modules at boot time, other than those
listed in the above files.
most adds most file system, all ata, sata, scsi and usb drivers.
dep tries to guess which modules are necessary for the running box and
only adds those modules.
netboot adds the base and network modules, but skips block devices.
The default setting is most.
Include busybox utilities for the boot scripts.
If set to 'n'
will build an initramfs without busybox.
Beware that many boot scripts need busybox utilities.
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.
Specifies the compression method used for the initramfs image.
will default to gzip if the kernel lacks support (CONFIG_RD) or the
corresponding userspace utility is not present.
Set the umask value of the generated initramfs file.
Useful to not disclose eventual keys.
Allows one 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.
Specifies the network interface, like eth0.
Allows optional root bootarg hardcoding, when no root bootarg can be passed.
A root bootarg overrides that special setting.
Defaults to auto in order to pick up value from DHCP server.
Otherwise you need to specify HOST:MOUNT.
The initramfs-tools are written by Maximilian Attems <email@example.com
Jeff Bailey <firstname.lastname@example.org
> and numerous others.
Loosely based on mkinitrd.conf by Herbert Xu.
- GENERAL VARIABLES
- NFS VARIABLES
- SEE ALSO