NAME
extlinux-update - program to generate EXTLINUX’s configuration files
SYNOPSIS
extlinux-update
DESCRIPTION
extlinux-update is a tool used to generate the configuration files used
by the EXTLINUX bootloader. Options can be configured in
/etc/default/extlinux.
OPTIONS
EXTLINUX_UPDATE="true|false"
This variable specifies if extlinux-update is allowed to modify the
configuration files in /boot/extlinux. Values are either ’true’ or
’false’, default is ’true’.
EXTLINUX_ALTERNATIVES="default recovery"
This variable specifies which entries extlinux-update is
populating. Values are ’default’, ’recovery’, ’live’, default is
’default recovery’.
EXTLINUX_DEFAULT="0"
This variable specifies the default entry to boot. Value is an
integer starting with 0 for the first entry, default is ’0’.
EXTLINUX_ENTRIES="1"
This variables specifies how many kernel versions should be used to
populate the boot configuration. Value is an integer starting with
1, default is ’1’.
EXTLINUX_MENU_LABEL="Debian GNU/Linux, kernel"
This variable specifies the text that is used as a description in
the boot menu. Value is an arbitrary string. If lsb_release is
installed, the distributors id is automatically determined. If
lsb_release is not available, it defaults to ’Debian GNU/Linux,
kernel’.
EXTLINUX_PARAMETERS="ro quiet"
This variable specifies additional boot parameters that are
appended to each kernel entry. Value is an arbitrary string,
default is ’ro quiet’ (except for recovery entries, where quiet is
avoided).
EXTLINUX_ROOT="root=DEVICE"
This variable specifies the root partition. It is automatically
extracted from /etc/fstab. EXTLINUX supports both devices and
UIIDs.
EXTLINUX_THEME="debian"
This variable specifies the theme that should be used, e.g. to
display a graphical boot menu. Values are either the name of an
EXTLINUX theme installed in /usr/share/syslinux/themes, or the full
path to the theme. If no theme should be used, the value ’none’ can
be used. If no theme is specified and themes are not disabled
through ’none’, and if /usr/share/syslinux/themes/debian is
available, then it defaults to that, otherwise the default is empty
and no theme is used. For more information about how to install the
themes package, see /usr/share/doc/extlinux/README.Debian.
EXTLINUX_TIMEOUT="50" 4
This specifies the time that EXTLINUX should wait for user input
during boot. Values are in decisecond greater than 0 (e.g. ’10’ for
a 1 second timeout), 0 specifies to wait forever. The default is
50.
FILES
/etc/default/extlinux
HOMEPAGE
More information about EXTLINUX and the syslinux project can be found
at <http://syslinux.zytor.com/>.
AUTHOR
EXTLINUX was written by H. Peter Anvin <hpa@zytor.com>.
extlinux-update and this manual page was written by Daniel Baumann
<daniel@debian.org>, for the Debian project (but may be used by
others).