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       extlinux-update - program to generate EXTLINUX’s configuration files




       extlinux-update is a tool used to generate the configuration files used
       by  the   EXTLINUX   bootloader.   Options   can   be   configured   in


           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’.

           This  variable  specifies  the  default  entry to boot. Value is an
           integer starting with 0 for the first entry, default is ’0’.

           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,

       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

           This  variable  specifies  the  root partition. It is automatically
           extracted from  /etc/fstab.  EXTLINUX  supports  both  devices  and

           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




       More information about EXTLINUX and the syslinux project can  be  found
       at <>.


       EXTLINUX was written by  H. Peter Anvin <>.

       extlinux-update  and  this  manual  page  was written by Daniel Baumann
       <>, for  the  Debian  project  (but  may  be  used  by