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GNU/Linux |
Ubuntu 9.04(Jaunty Jackalope) |
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initramfs.conf(5) |
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initramfs.conf − configuration file for mkinitramfs
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 individual 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 config file without editing it directly.
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.
COMPCACHE_SIZE
Amount of RAM to use for RAM-based compressed swap space. The default is not to use compcache.
An empty value − compcache isn’t used, or added to the initramfs at all.
An integer and K (e.g. 65536 K) − use a number of kilobytes.
An integer and M (e.g. 256 M) − use a number of megabytes.
An integer and G (e.g. 1 G) − use a number of gigabytes.
An integer and % (e.g. 50 %) − use a percentage of the amount of RAM.
You can optionally install the compcache package to configure this setting via debconf and have userspace scripts to load and unload compcache.
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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.
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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.
The initramfs-tools are written by Maximilian Attems <maks@debian.org>, Jeff Bailey <jbailey@raspberryginger.com> and numerous others. Loosely based on mkinitrd.conf by Herbert Xu.
initramfs-tools(8), mkinitramfs(8), update-initramfs(8).
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initramfs.conf(5) | |