FreeBSD/Linux Kernel Cross Reference
sys/scripts/README.Menuconfig

     Menuconfig gives the Linux kernel configuration a long needed face
     lift.  Featuring text based color menus and dialogs, it does not
     require X Windows.  With this utility you can easily select a kernel
     option to modify without sifting through 100 other options.
     
     Overview
     --------
     Some kernel features may be built directly into the kernel.
     Some may be made into loadable runtime modules.  Some features
    may be completely removed altogether.  There are also certain
    kernel parameters which are not really features, but must be 
    entered in as decimal or hexadecimal numbers or possibly text.
    
    Menu items beginning with [*], <M> or [ ] represent features 
    configured to be built in, modularized or removed respectively.
    Pointed brackets <> represent module capable features.
                                                                 more...
    
    To change any of these features, highlight it with the cursor 
    keys and press <Y> to build it in, <M> to make it a module or
    <N> to removed it.  You may also press the <Space Bar> to cycle
    through the available options (ie. Y->N->M->Y). 
    
    Items beginning with numbers or other text within parenthesis can 
    be changed by highlighting the item and pressing <Enter>.  Then
    enter the new parameter into the dialog box that pops up.
    
    
    Some additional keyboard hints:
    
    Menus
    ----------
    o  Use the Up/Down arrow keys (cursor keys) to highlight the item 
       you wish to change or submenu wish to select and press <Enter>.
       Submenus are designated by "--->".
    
       Shortcut: Press the option's highlighted letter (hotkey).
                 Pressing a hotkey more than once will sequence
                 through all visible items which use that hotkey.
    
       You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll
       unseen options into view.
    
    o  To exit a menu use the cursor keys to highlight the <Exit> button
       and press <ENTER>.  
    
       Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey
                 using those letters.  You may press a single <ESC>, but
                 there is a delayed response which you may find annoying.
    
       Also, the <TAB> and cursor keys will cycle between <Select>,
       <Exit> and <Help>
    
    o  To get help with an item, use the cursor keys to highlight <Help>
       and Press <ENTER>.
    
       Shortcut: Press <H> or <?>.
    
    
    Radiolists  (Choice lists)
    -----------
    o  Use the cursor keys to select the option you wish to set and press
       <S> or the <SPACE BAR>.
    
       Shortcut: Press the first letter of the option you wish to set then
                 press <S> or <SPACE BAR>.
    
    o  To see available help for the item, use the cursor keys to highlight
       <Help> and Press <ENTER>.
    
       Shortcut: Press <H> or <?>.
    
       Also, the <TAB> and cursor keys will cycle between <Select> and
       <Help>
    
    
    Data Entry
    -----------
    o  Enter the requested information and press <ENTER>
       If you are entering hexadecimal values, it is not necessary to
       add the '0x' prefix to the entry.
    
    o  For help, use the <TAB> or cursor keys to highlight the help option
       and press <ENTER>.  You can try <TAB><H> as well.
    
    
    Text Box    (Help Window)
    --------
    o  Use the cursor keys to scroll up/down/left/right.  The VI editor
       keys h,j,k,l function here as do <SPACE BAR> and <B> for those
       who are familiar with less and lynx.
    
    o  Press <E>, <X>, <Enter> or <Esc><Esc> to exit.
    
    
    Final Acceptance
    ----------------
    With the exception of the old style sound configuration,
    YOUR CHANGES ARE NOT FINAL.  You will be given a last chance to
   confirm them prior to exiting Menuconfig.
   
   If Menuconfig quits with an error while saving your configuration,
   you may look in the file /usr/src/linux/.menuconfig.log for
   information which may help you determine the cause.
   
   Alternate Configuration Files
   -----------------------------
   Menuconfig supports the use of alternate configuration files for
   those who, for various reasons, find it necessary to switch 
   between different kernel configurations.
   
   At the end of the main menu you will find two options.  One is
   for saving the current configuration to a file of your choosing.
   The other option is for loading a previously saved alternate
   configuration.
   
   Even if you don't use alternate configuration files, but you 
   find during a Menuconfig session that you have completely messed
   up your settings, you may use the "Load Alternate..." option to
   restore your previously saved settings from ".config" without 
   restarting Menuconfig.
   
   Other information
   -----------------
   The windowing utility, lxdialog, will only be rebuilt if your kernel
   source tree is fresh, or changes are patched into it via a kernel
   patch or you do 'make mrproper'.  If changes to lxdialog are patched
   in, most likely the rebuild time will be short.  You may force a
   complete rebuild of lxdialog by changing to it's directory and doing
   'make clean all'
   
   If you use Menuconfig in an XTERM window make sure you have your 
   $TERM variable set to point to a xterm definition which supports color.
   Otherwise, Menuconfig will look rather bad.  Menuconfig will not 
   display correctly in a RXVT window because rxvt displays only one
   intensity of color, bright.
   
   Menuconfig will display larger menus on screens or xterms which are
   set to display more than the standard 25 row by 80 column geometry.
   In order for this to work, the "stty size" command must be able to 
   display the screen's current row and column geometry.  I STRONGLY
   RECOMMEND that you make sure you do NOT have the shell variables
   LINES and COLUMNS exported into your environment.  Some distributions
   export those variables via /etc/profile.  Some ncurses programs can
   become confused when those variables (LINES & COLUMNS) don't reflect
   the true screen size.
   
   
   NOTICE:  lxdialog requires the ncurses libraries to compile.  If you
            don't already have ncurses you really should get it.
   
            The makefile for lxdialog attempts to find your ncurses
            header file.  Although it should find the header for older
            versions of ncurses, it is probably a good idea to get the
            latest ncurses anyway. 
   
            If you have upgraded your ncurses libraries, MAKE SURE you
            remove the old ncurses header files.  If you don't you
            will most certainly get a segmentation fault.
   
   WARNING: It is not recommended that you change any defines in
            lxdialog's header files.  If you have a grayscale display and
            are brave, you may tinker with color.h to tune the colors to
            your preference.
   
   COMPATIBILITY ISSUE:
            There have been some compatibility problems reported with
            older versions of bash and sed.  I am trying to work these
            out but it is preferable that you upgrade those utilities.
   
   
   ******** IMPORTANT, OPTIONAL ALTERNATE PERSONALITY AVAILABLE ********
   ********                                                     ********
   If you prefer to have all of the kernel options listed in a single
   menu, rather than the default multimenu hierarchy, you may edit the
   Menuconfig script and change the line "single_menu_mode="  to 
   "single_menu_mode=TRUE".
   
   This mode is not recommended unless you have a fairly fast machine.
   *********************************************************************
   
   
   Propaganda
   ----------
   The windowing support utility (lxdialog) is a VERY modified version of
   the dialog utility by Savio Lam <lam836@cs.cuhk.hk>.  Although lxdialog
   is significantly different from dialog, I have left Savio's copyrights
   intact.  Please DO NOT contact Savio with questions about lxdialog.
   He will not be able to assist.
   
   William Roadcap was the original author of Menuconfig.
   Michael Elizabeth Chastain <mec@shout.net> is the current maintainer.
   
   <END OF FILE>

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