Ubuntu Manpage: live-config - System Configuration Components

Provided by: open-infrastructure-system-config_20190301-lts1-3_all

NAME

       live-config - System Configuration Components

DESCRIPTION

       live-config  contains  the  components  that  configure  a  live  system  during  the  boot process (late
       userspace).

CONFIGURATION

live-config can be configured through boot parameters or configuration files. If both mechanisms are used
for a certain option, the boot parameters take precedence over the configuration files. When using
persistency, live-config components are only run once.

If live-build(7) is used to build the live system, the live-config parameters used by default can be set
through the --bootappend-live option, see lb_config(1) manual page.

Boot Parameters (components)
live-config is only activated if 'boot=live' is used as a boot parameter. Additionally, live-config needs
to be told which components to run through the 'live-config.components' parameter or which components to
not run through the 'live-config.nocomponents' parameter. If both 'live-config.components' and
'live-config.nocomponents' are used, or, if either one is specified multiple times, always the later one
takes precedence over the previous one(s).

live-config.components | components
All components are run. This is what live images use by default.

live-config.components=COMPONENT1,COMPONENT2, ... COMPONENTn | components=COMPONENT1,COMPONENT2, ...
COMPONENTn
Only the specified components are run. Note that the order matters, e.g.
'live-config.components=sudo,user-setup' would not work since the user needs to be added before it
can be configured for sudo. Look at the filenames of the components in /lib/live/config for their
ordering number.

live-config.nocomponents | nocomponents
No component is run. This is the same as not using any of 'live-config.components' or
'live-config.nocomponents'.

live-config.nocomponents=COMPONENT1,COMPONENT2, ... COMPONENTn | nocomponents=COMPONENT1,COMPONENT2, ...
COMPONENTn
All components are run, except the specified ones.

Boot Parameters (options)
Some individual components can change their behaviour upon a boot parameter.

live-config.debconf-preseed=filesystem|medium|URL1|URL2| ... |URLn |
debconf-preseed=medium|filesystem|URL1|URL2| ... |URLn
Allows to fetch and apply one or more debconf preseed files to be applied to the debconf database.
Note that the URLs must be fetchable by wget (http, ftp or file://).
If the file is placed on the live medium, it can be fetched with file:///lib/live/mount/medium/FILE,
or with file:///FILE if it is in the root filesystem of the live system itself.
All preseed files in /lib/live/config-preseed/ in the root filesystem of the live system can be
automatically enabled with the keyword 'filesystem'.
All preseed files in /live/config-preseed/ of the live medium can be automatically enabled with the
keyword 'medium'.
If several mechanisms are combined, then filesystem preseed files are applied first, then medium
preseed files, and last the network preseed files.

live-config.hostname=HOSTNAME | hostname=HOSTNAME
Allows to set the hostname of the system. The default is 'debian'.

live-config.username=USERNAME | username=USERNAME
Allows to set the username that gets created for autologin. The default is 'user'.

live-config.user-default-groups=GROUP1,GROUP2 ... GROUPn | user-default-groups=GROUP1,GROUP2 ... GROUPn
Allows to set the default groups of the users that gets created for autologin is member of. The
default is 'audio cdrom dip floppy video plugdev netdev powerdev scanner bluetooth'.

live-config.user-fullname="USER FULLNAME" | user-fullname="USER FULLNAME"
Allows to set the fullname of the users that gets created for autologin. On Debian the default is
'Debian Live user'.

live-config.locales=LOCALE1,LOCALE2 ... LOCALEn | locales=LOCALE1,LOCALE2 ... LOCALEn
Allows to set the locale of the system, e.g. 'de_CH.UTF-8'. The default is 'en_US.UTF-8'. In case the
selected locale is not already available on the system, it is automatically generated on the fly.

live-config.timezone=TIMEZONE | timezone=TIMEZONE
Allows to set the timezone of the system, e.g. 'Europe/Zurich'. The default is 'UTC'.

live-config.keyboard-model=KEYBOARD_MODEL | keyboard-model=KEYBOARD_MODEL
Allows to change the keyboard model. There is no default value set.

live-config.keyboard-layouts=KEYBOARD_LAYOUT1,KEYBOARD_LAYOUT2 ... KEYBOARD_LAYOUTn |
keyboard-layouts=KEYBOARD_LAYOUT1,KEYBOARD_LAYOUT2 ... KEYBOARD_LAYOUTn
Allows to change the keyboard layouts. If more than one is specified, the tools of the desktop
environment will allow to switch it under X11. There is no default value set.

live-config.keyboard-variants=KEYBOARD_VARIANT1,KEYBOARD_VARIANT2 ... KEYBOARD_VARIANTn |
keyboard-variants=KEYBOARD_VARIANT1,KEYBOARD_VARIANT2 ... KEYBOARD_VARIANTn
Allows to change the keyboard variants. If more than one is specified, the same number of values as
keyboard-layouts values should be specified as they will be matched one-to-one in the order
specified. Blank values are allowed. The tools of the desktop environment will allow to switch
between each layout and variant pair under X11. There is no default value set.

live-config.keyboard-options=KEYBOARD_OPTIONS | keyboard-options=KEYBOARD_OPTIONS
Allows to change the keyboard options. There is no default value set.

live-config.sysv-rc=SERVICE1,SERVICE2 ... SERVICEn | sysv-rc=SERVICE1,SERVICE2 ... SERVICEn
Allows to disable sysv services through update-rc.d.

live-config.utc=yes|no | utc=yes|no
Allows to change if the system is assuming that the hardware clock is set to UTC or not. The default
is 'yes'.

live-config.x-session-manager=X_SESSION_MANAGER | x-session-manager=X_SESSION_MANAGER
Allows to set the x-session-manager through update-alternatives.

live-config.xorg-driver=XORG_DRIVER | xorg-driver=XORG_DRIVER
Allows to set xorg driver instead of autodetecting it. If a PCI ID is specified in
/usr/share/live/config/xserver-xorg/DRIVER.ids within the live system, the DRIVER is enforced for
these devices. If both a boot parameter and an override are found, the boot parameter takes
precedence.

live-config.xorg-resolution=XORG_RESOLUTION | xorg-resolution=XORG_RESOLUTION
Allows to set xorg resolution instead of autodetecting it, e.g. 1024x768.

live-config.wlan-driver=WLAN_DRIVER | wlan-driver=WLAN_DRIVER
Allows to set WLAN driver instead of autodetecting it. If a PCI ID is specified in
/usr/share/live/config/broadcom-sta/DRIVER.ids within the live system, the DRIVER is enforced for
these devices. If both a boot parameter and an override are found, the boot parameter takes
precedence.

live-config.hooks=filesystem|medium|URL1|URL2| ... |URLn | hooks=medium|filesystem|URL1|URL2| ... |URLn
Allows to fetch and execute one or more arbitrary files. Note that the URLs must be fetchable by wget
(http, ftp or file://), the files are executed in /tmp of the running live system, and that the files
needs their dependencies, if any, already installed, e.g. if a python script should be executed the
system needs python installed. Some hooks for some common use-cases are available at
/usr/share/doc/live-config/examples/hooks/ and <http://live-systems.org/other/hooks>.
If the file is placed on the live medium, it can be fetched with file:///lib/live/mount/medium/FILE,
or with file:///FILE if it is in the root filesystem of the live system itself.
All hooks in /lib/live/config-hooks/ in the root filesystem of the live system can be automatically
enabled with the keyword 'filesystem'.
All hooks in /live/config-hooks/ of the live medium can be automatically enabled with the keyword
'medium'.
If several mechanisms are combined, then filesystem hooks are executed first, then medium hooks, and
last the network hooks.

Boot Parameters (shortcuts)
For some common use cases where it would require to combine several individual parameters, live-config
provides shortcuts. This allows both to have full granularity over all the options, as well keep things
simple.

live-config.noroot | noroot
Disables sudo and policykit, the user cannot gain root privileges on the system.

live-config.noautologin | noautologin
Disables both the automatic console login and the graphical autologin.

live-config.nottyautologin | nottyautologin
Disables the automatic login on the console, not affecting the graphical autologin.

live-config.nox11autologin | nox11autologin
Disables the automatic login with any display manager, not affecting tty autologin.

Boot Parameters (special options)
For special use cases there are some special boot paramters.

live-config.debug | debug
Enables debug output in live-config.

Configuration Files
live-config can be configured (but not activated) through configuration files. Everything but the
shortcuts that can be configured with a boot parameter can also alternatively be configured through one
or more files. If configuration files are used, the 'boot=live' parameter is still required to activate
live-config.

Note: If configuration files are used, either (preferably) all boot parameters should be put into the
LIVE_CONFIG_CMDLINE variable, or individual variables can be set. If individual variables are used, the
user is required to ensure that all the necessary variables are set to create a valid configuration.

Configuration files can be placed either in the root filesystem itself (/etc/live/config.conf,
/etc/live/config.conf.d/*.conf), or on the live media (live/config.conf, live/config.conf.d/*.conf). If
both places are used for a certain option, the ones from the live media take precedence over the ones
from the root filesystem.

Although the configuration files placed in the configuration directories do not require a particular
name, it is suggested for consistency reasons to either use 'vendor.conf' or 'project.conf' as a naming
scheme (whereas 'vendor' or 'project' is replaced with the actual name, resulting in a filename like
'progress-linux.conf').

The actual content of the configuration files consists of one or more of the following variables.

LIVE_CONFIG_CMDLINE=PARAMETER1 PARAMETER2 ... PARAMETERn
This variable corresponds to the bootloader command line.

LIVE_CONFIG_COMPONENTS=COMPONENT1,COMPONENT2, ... COMPONENTn
This variable corresponds to the 'live-config.components=COMPONENT1,COMPONENT2, ... COMPONENTn'
parameter.

LIVE_CONFIG_NOCOMPONENTS=COMPONENT1,COMPONENT2, ... COMPONENTn
This variable corresponds to the 'live-config.nocomponents=COMPONENT1,COMPONENT2, ... COMPONENTn'
parameter.

LIVE_DEBCONF_PRESEED=filesystem|medium|URL1|URL2| ... |URLn
This variable corresponds to the 'live-config.debconf-preseed=filesystem|medium|URL1|URL2| ... |URLn'
parameter.

LIVE_HOSTNAME=HOSTNAME
This variable corresponds to the 'live-config.hostname=HOSTNAME' parameter.

LIVE_USERNAME=USERNAME
This variable corresponds to the 'live-config.username=USERNAME' parameter.

LIVE_USER_DEFAULT_GROUPS=GROUP1,GROUP2 ... GROUPn
This variable corresponds to the 'live-config.user-default-groups="GROUP1,GROUP2 ... GROUPn"'
parameter.

LIVE_USER_FULLNAME="USER FULLNAME"
This variable corresponds to the 'live-config.user-fullname="USER FULLNAME"' parameter.

LIVE_LOCALES=LOCALE1,LOCALE2 ... LOCALEn
This variable corresponds to the 'live-config.locales=LOCALE1,LOCALE2 ... LOCALEn' parameter.

LIVE_TIMEZONE=TIMEZONE
This variable corresponds to the 'live-config.timezone=TIMEZONE' parameter.

LIVE_KEYBOARD_MODEL=KEYBOARD_MODEL
This variable corresponds to the 'live-config.keyboard-model=KEYBOARD_MODEL' parameter.

LIVE_KEYBOARD_LAYOUTS=KEYBOARD_LAYOUT1,KEYBOARD_LAYOUT2 ... KEYBOARD_LAYOUTn
This variable corresponds to the 'live-config.keyboard-layouts=KEYBOARD_LAYOUT1,KEYBOARD_LAYOUT2 ...
KEYBOARD_LAYOUTn' parameter.

LIVE_KEYBOARD_VARIANTS=KEYBOARD_VARIANT1,KEYBOARD_VARIANT2 ... KEYBOARD_VARIANTn
This variable corresponds to the 'live-config.keyboard-variants=KEYBOARD_VARIANT1,KEYBOARD_VARIANT2
... KEYBOARD_VARIANTn' parameter.

LIVE_KEYBOARD_OPTIONS=KEYBOARD_OPTIONS
This variable corresponds to the 'live-config.keyboard-options=KEYBOARD_OPTIONS' parameter.

LIVE_SYSV_RC=SERVICE1,SERVICE2 ... SERVICEn
This variable corresponds to the 'live-config.sysv-rc=SERVICE1,SERVICE2 ... SERVICEn' parameter.

LIVE_UTC=yes|no
This variable corresponds to the 'live-config.utc=yes|no' parameter.

LIVE_X_SESSION_MANAGER=X_SESSION_MANAGER
This variable corresponds to the 'live-config.x-session-manager=X_SESSION_MANAGER' parameter.

LIVE_XORG_DRIVER=XORG_DRIVER
This variable corresponds to the 'live-config.xorg-driver=XORG_DRIVER' parameter.

LIVE_XORG_RESOLUTION=XORG_RESOLUTION
This variable corresponds to the 'live-config.xorg-resolution=XORG_RESOLUTION' parameter.

LIVE_WLAN_DRIVER=WLAN_DRIVER
This variable corresponds to the 'live-config.wlan-driver=WLAN_DRIVER' parameter.

LIVE_HOOKS=filesystem|medium|URL1|URL2| ... |URLn
This variable corresponds to the 'live-config.hooks=filesystem|medium|URL1|URL2| ... |URLn'
parameter.

LIVE_CONFIG_DEBUG=true|false
This variable corresponds to the 'live-config.debug' parameter.

CUSTOMIZATION

       live-config can be easily customized for downstream projects or local usage.

   Adding new config components
       Downstream projects can put their components into /lib/live/config and do not need to do  anything  else,
       the components will be called automatically during boot.

       The  components are best put into an own debian package. A sample package containing an example component
       can be found in /usr/share/doc/live-config/examples.

   Removing existing config components
       It is not really possible to remove components itself in a sane way yet without requiring either to  ship
       a  locally  modified  live-config  package  or  using  dpkg-divert.  However, the same can be achieved by
       disabling the respective components through the live-config.nocomponents mechanism, see above.  To  avoid
       to  always  need specifing disabled components through the boot parameter, a configuration file should be
       used, see above.

       The configuration files for the live system itself are best put into an  own  debian  package.  A  sample
       package containing an example configuration can be found in /usr/share/doc/live-config/examples.

COMPONENTS

live-config currently features the following components in /lib/live/config.

debconf
allows to apply arbitrary preseed files placed on the live media or an http/ftp server.

hostname
configures /etc/hostname and /etc/hosts.

user-setup
adds a live user account.

sudo
grants sudo privileges to the live user.

locales
configures locales.

locales-all
configures locales-all.

tzdata
configures /etc/timezone.

gdm3
configures autologin in gdm3.

kdm configures autologin in kdm.

lightdm
configures autologin in lightdm.

lxdm
configures autologin in lxdm.

nodm
configures autologin in nodm.

slim
configures autologin in slim.

xinit
configures autologin with xinit.

keyboard-configuration
configures the keyboard.

systemd
configures systemd autologin.

sysvinit
configures sysvinit.

sysv-rc
configures sysv-rc by disabling listed services.

apport
disables apport.

gnome-panel-data
disables lock button for the screen.

gnome-power-manager
disables hibernation.

gnome-screensaver
disables the screensaver locking the screen.

kaboom
disables KDE migration wizard (squeeze and newer).

kde-services
disables some unwanted KDE services (squeeze and newer).

policykit
grant user privilegies through policykit.

ssl-cert
regenerating ssl snake-oil certificates.

anacron
disables anacron.

util-linux
disables util-linux' hwclock.

xserver-xorg
configures xserver-xorg.

broadcom-sta
configures broadcom-sta WLAN drivers.

openssh-server
recreates openssh-server host keys.

xfce4-panel
configures xfce4-panel to default settings.

xscreensaver
disables the screensaver locking the screen.

hooks
allows to run arbitrary commands from a file placed on the live media or an http/ftp server.

FILES

       /etc/live/config.conf

       /etc/live/config.conf.d/*.conf

       live/config.conf

       live/config.conf.d/*.conf

       /lib/live/config.sh

       /lib/live/config/

       /var/lib/live/config/

       /var/log/live/config.log

       /live/config-hooks/*

       live/config-hooks/*

       /live/config-preseed/*

       live/config-preseed/*

HOMEPAGE

       More  information  about  live-config  and  the  Live  Systems  project  can  be found on the homepage at
       <http://live-systems.org/> and in the manual at <http://live-systems.org/manual/>.

BUGS

       Bugs can be reported by submitting a bugreport for the live-config package in the Bug Tracking System  at
       <http://bugs.debian.org/>   or   by   writing   a   mail   to   the   Live   Systems   mailing   list  at
       <debian-live@lists.debian.org>.

AUTHOR

       live-config was written by Daniel Baumann <mail@daniel-baumann.ch>.

5.0~a5-1                                           2015-09-23                                     LIVE-CONFIG(7)