LIVE-CONFIG(7) Live Systems Project LIVE-CONFIG(7)

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 parame‐ ter. 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 | compo‐ nents=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 | nocom‐ ponents=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 fetch‐ able 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 filesys‐ tem of the live system can be automatically enabled with the key‐ word '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 FULL‐ NAME" 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=KEY‐ BOARD_MODEL Allows to change the keyboard model. There is no default value set. live-config.keyboard-layouts=KEYBOARD_LAYOUT1,KEYBOARD_LAYOUT2 ... KEY‐ BOARD_LAYOUTn | keyboard-layouts=KEYBOARD_LAYOUT1,KEYBOARD_LAYOUT2 ... KEYBOARD_LAYOUTn Allows to change the keyboard layouts. If more than one is speci‐ fied, 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_VARI‐ ANT2 ... KEYBOARD_VARIANTn Allows to change the keyboard variants. If more than one is speci‐ fied, the same number of values as keyboard-layouts values should be specified as they will be matched one-to-one in the order speci‐ fied. Blank values are allowed. The tools of the desktop environ‐ ment 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=KEY‐ BOARD_OPTIONS Allows to change the keyboard options. There is no default value set. live-config.sysv-rc=SERVICE1,SERVICE2 ... SERVICEn | sysv-rc=SER‐ VICE1,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-man‐ ager=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 param‐ eter takes precedence. live-config.xorg-resolution=XORG_RESOLUTION | xorg-resolution=XORG_RES‐ OLUTION Allows to set xorg resolution instead of autodetecting it, e.g. 1024x768. 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-sys‐ tems.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 'filesys‐ tem'. All hooks in /live/config-hooks/ of the live medium can be automat‐ ically enabled with the keyword 'medium'. If several mechanisms are combined, then filesystem hooks are exe‐ cuted 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 sim‐ ple. 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 autolo‐ gin. 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 affect‐ ing 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/*), or on the live media (live/config.conf, live/config/*). If both places are used for a cer‐ tain option, the ones from the live media take precedence over the ones from the root filesystem. Although the configuration files placed in the configuration directo‐ ries do not require a particular name or suffix, 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=COMPO‐ NENT1,COMPONENT2, ... COMPONENTn' parameter. LIVE_CONFIG_NOCOMPONENTS=COMPONENT1,COMPONENT2, ... COMPONENTn This variable corresponds to the 'live-config.nocomponents=COMPO‐ NENT1,COMPONENT2, ... COMPONENTn' parameter. LIVE_DEBCONF_PRESEED=filesystem|medium|URL1|URL2| ... |URLn This variable corresponds to the 'live-config.debconf-pre‐ seed=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-con‐ fig.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-con‐ fig.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=KEY‐ BOARD_MODEL' parameter. LIVE_KEYBOARD_LAYOUTS=KEYBOARD_LAYOUT1,KEYBOARD_LAYOUT2 ... KEY‐ BOARD_LAYOUTn This variable corresponds to the 'live-config.keyboard-layouts=KEY‐ BOARD_LAYOUT1,KEYBOARD_LAYOUT2 ... KEYBOARD_LAYOUTn' parameter. LIVE_KEYBOARD_VARIANTS=KEYBOARD_VARIANT1,KEYBOARD_VARIANT2 ... KEY‐ BOARD_VARIANTn This variable corresponds to the 'live-config.keyboard-vari‐ ants=KEYBOARD_VARIANT1,KEYBOARD_VARIANT2 ... KEYBOARD_VARIANTn' parameter. LIVE_KEYBOARD_OPTIONS=KEYBOARD_OPTIONS This variable corresponds to the 'live-config.keyboard-options=KEY‐ BOARD_OPTIONS' parameter. LIVE_SYSV_RC=SERVICE1,SERVICE2 ... SERVICEn This variable corresponds to the 'live-config.sysv-rc=SERVICE1,SER‐ VICE2 ... SERVICEn' parameter. LIVE_UTC=yes|no This variable corresponds to the 'live-config.utc=yes|no' parame‐ ter. LIVE_X_SESSION_MANAGER=X_SESSION_MANAGER This variable corresponds to the 'live-config.x-session-man‐ ager=X_SESSION_MANAGER' parameter. LIVE_XORG_DRIVER=XORG_DRIVER This variable corresponds to the 'live-con‐ fig.xorg-driver=XORG_DRIVER' parameter. LIVE_XORG_RESOLUTION=XORG_RESOLUTION This variable corresponds to the 'live-config.xorg-resolu‐ tion=XORG_RESOLUTION' parameter. LIVE_HOOKS=filesystem|medium|URL1|URL2| ... |URLn This variable corresponds to the 'live-config.hooks=filesys‐ tem|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 automat‐ ically during boot. The components are best put into an own debian package. A sample pack‐ age 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 mecha‐ nism, 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 configura‐ tion 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. sysvinit configures sysvinit. sysv-rc configures sysv-rc by disabling listed services. login disables lastlog. 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). debian-installer-launcher adds debian-installer-launcher on users desktop. policykit grant user privilegies through policykit. ssl-cert regenerating ssl snake-oil certificates. update-notifier disables update-notifier. anacron disables anacron. util-linux disables util-linux' hwclock. login disables lastlog. xserver-xorg configures xserver-xorg. ureadahead (ubuntu only) disables ureadahead. 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/* live/config.conf live/config/* /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/*

SEE ALSO

live-boot(7) live-build(7) live-tools(7)

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>.

4.0~alpha32-1 2014-03-31 LIVE-CONFIG(7)