1 There are two menu systems included with Syslinux, the advanced menu
2 system, and the simple menu system.
5 +++ THE ADVANCED MENU SYSTEM +++
7 The advanced menu system, written by Murali Krishnan Ganapathy, is
8 located in the menu/ subdirectly. It allows the user to create
9 hierarchial submenus, dynamic options, checkboxes, and just about
10 anything you want. It requires that the menu is compiled from a
11 simple C file, see menu/simple.c and menu/complex.c for examples.
13 The advanced menu system doesn't support serial console at this time.
15 See menu/README for more information.
18 +++ THE SIMPLE MENU SYSTEM +++
20 The simple menu system is a single module located at
21 com32/menu/vesamenu.c32 (graphical) or com32/menu/menu.c32 (text
22 mode only). It uses the same configuration file as the regular
23 Syslinux command line, and displays all the LABEL statements.
25 To use the menu system, simply make sure [vesa]menu.c32 is in the
26 appropriate location for your boot medium (the same directory as the
27 configuration file for SYSLINUX, EXTLINUX and ISOLINUX, and the same
28 directory as pxelinux.0 for PXELINUX), and put the following options
29 in your configuration file:
34 There are a few menu additions to the configuration file, all starting
35 with the keywords MENU or TEXT; like the rest of the Syslinux config
36 file language, it is case insensitive:
41 Give the menu a title. The title is presented at the top of
47 Do not display the actual menu unless the user presses a key.
48 All that is displayed is a timeout message.
51 MENU HIDDENKEY key[,key...] command...
53 If they key used to interrupt MENU HIDDEN is <key>, then
54 execute the specified command instead of displaying the menu.
56 Currently, the following key names are recognized:
58 Backspace, Tab, Enter, Esc, Space, F1..F12, Up, Down, Left,
59 Right, PgUp, PgDn, Home, End, Insert, Delete
61 ... in addition to all single characters plus the syntax ^X
62 for Ctrl-X. Note that single characters are treated as case
63 sensitive, so a different command can be bound to "A" than
64 "a". One can bind the same command to multiple keys by giving
65 a comma-separated list of keys:
67 menu hiddenkey A,a key_a_command
72 Clear the screen when exiting the menu, instead of leaving the
73 menu displayed. For vesamenu, this means the graphical
74 background is still displayed without the menu itself for as
75 long as the screen remains in graphics mode.
80 Exit the menu system immediately unless either the Shift or Alt
81 key is pressed, or Caps Lock or Scroll Lock is set.
86 Insert an empty line in the menu.
91 (Only valid after a LABEL statement.)
92 Changes the label displayed for a specific entry. This allows
93 you to have a label that isn't suitable for the command line,
98 MENU LABEL Soft Cap ^Linux 9.6.36
99 KERNEL softcap-9.6.36.bzi
102 # A very dense operating system
104 MENU LABEL ^Windows CE/ME/NT
108 The ^ symbol in a MENU LABEL statement defines a hotkey.
109 The hotkey will be highlighted in the menu and will move the
110 menu cursor immediately to that entry.
112 Reusing hotkeys is disallowed, subsequent entries will not be
113 highlighted, and will not work.
115 Keep in mind that the LABELs, not MENU LABELs, must be unique,
116 or odd things will happen to the command-line.
121 (Only valid after a LABEL statement.)
122 Will add "count" spaces in front of the displayed menu entry.
127 (Only valid after a LABEL statement.)
128 Makes the entry unselectable. This allows you to make a
129 section in your menu with different options below it.
132 # Entries for network boots
139 MENU LABEL Soft Cap ^Linux 9.6.36
141 KERNEL softcap-9.6.36.bzi
149 APPEND initrd=dos622.imz
154 # Entries for local boots
161 MENU LABEL ^Windows 2000
168 MENU LABEL Windows ^XP
175 (Only valid after a LABEL statement.)
176 Suppresses a particular LABEL entry from the menu.
181 (Only valid after a LABEL statement.)
183 Indicates that this entry should be the default for this
184 particular submenu. See also the DEFAULT directive below.
189 ... which can span multiple lines
192 (Only valid after a LABEL statement.)
194 Specifies a help text that should be displayed when a particular
195 selection is highlighted.
200 (Only valid after a LABEL statement.)
202 Sets a password on this menu entry. "passwd" can be either a
203 cleartext password or a password encrypted with one of the
204 following algorithms:
207 SHA-1 (Signature: $4$)
208 SHA-2-256 (Signature: $5$)
209 SHA-2-512 (Signature: $6$)
211 Use the included Perl scripts "sha1pass" or "md5pass" to
212 encrypt passwords. MD5 passwords are compatible with most
213 Unix password file utilities; SHA-1 passwords are probably
214 unique to Syslinux; SHA-2 passwords are compatible with very
215 recent Linux distributions. Obviously, if you don't encrypt
216 your passwords they will not be very secure at all.
218 If you are using passwords, you want to make sure you also use
219 the settings "NOESCAPE 1", "PROMPT 0", and either set
220 "ALLOWOPTIONS 0" or use a master password (see below.)
222 If passwd is an empty string, this menu entry can only be
223 unlocked with the master password.
226 MENU MASTER PASSWD passwd
228 Sets a master password. This password can be used to boot any
229 menu entry, and is required for the [Tab] and [Esc] keys to
233 MENU RESOLUTION height width
235 Requests a specific screen resolution when in graphics mode.
236 The default is "640 480" corresponding to a resolution of
237 640x480 pixels, which all VGA-compatible monitors should be
240 If the selected resolution is unavailable, the text mode menu
241 is displayed instead.
244 MENU BACKGROUND background
246 For vesamenu.c32, sets the background image. The background
247 can either be a color (see MENU COLOR) or the name of an image
248 file, which should be the size of the screen (normally 640x480
249 pixels, but see MENU RESOLUTION) and either in PNG, JPEG or
256 Begin/end a submenu. The entries between MENU BEGIN and MENU
257 END form a submenu, which is marked with a > mark on the right
258 hand of the screen. Submenus inherit the properties of their
259 parent menus, but can override them, and can thus have their
260 own backgrounds, master passwords, titles, timeouts, messages
266 (Only valid after a LABEL statement.)
268 This label will transfer to the named submenu instead of
269 booting anything. To transfer to the top-level menu, specify
275 (Only valid after a label statement inside MENU BEGIN ...
278 Exit to the next higher menu, or, if tagname is specified, to
284 (Only valid after a LABEL statement.)
286 This label quits the menu system.
288 WARNING: if MENU MASTER PASSWD or ALLOWOPTIONS 0 is set, this
289 will still allow exiting to the CLI; however, a separate MENU
290 PASSWD can of course be set for this label.
295 (Only valid inside MENU BEGIN ... MENU END)
297 Indicates that the menu system should start at the menu being
298 defined instead of at the top-level menu. See also the
299 DEFAULT directive below.
304 Set the global default. If "label" points into a submenu,
305 that menu becomes the start menu; in other words, this
306 directive has the same effect as both MENU DEFAULT and MENU
309 For backwards compatibility with earlier versions of Syslinux,
310 this directive is ignored unless the configuration file also
311 contains a UI directive.
313 Note: the CLI accepts options after the label, or even a
314 non-label. The menu system does not support that.
320 Remember the last entry selected and make that the default for
321 the next boot. A password-protected menu entry is *not*
322 saved. This requires the ADV data storage mechanism, which is
323 currently only implemented for EXTLINUX, although the other
324 Syslinux derivatives will accept the command (and ignore it.)
326 NOTE: MENU SAVE stores the LABEL tag of the selected entry;
327 this mechanism therefore relies on LABEL tags being unique.
328 On the other hand, it handles changes in the configuration
331 NOTE: In software RAID-1 setups MENU SAVE only stores the
332 default label on the actual boot disk. This may lead to
333 inconsistent reads from the array, or unexpectedly change the
334 default label after array resynchronization or disk failure.
336 The MENU SAVE information can be fully cleared with
337 "extlinux --reset-adv <bootdir>".
339 A MENU SAVE or MENU NOSAVE at the top of a (sub)menu affects
340 all entries underneath that (sub)menu except those that in
341 turn have MENU SAVE or MENU NOSAVE declared. This can be used
342 to only save certain entires when selected.
345 INCLUDE filename [tagname]
346 MENU INCLUDE filename [tagname]
348 Include the contents of the configuration file filename at
351 In the case of MENU INCLUDE, the included data is only seen by
352 the menu system; the core syslinux code does not parse this
353 command, so any labels defined in it are unavailable.
355 If a tagname is included, the whole file is considered to have
356 been bracketed with a MENU BEGIN tagname ... MENU END pair,
357 and will therefore show up as a submenu.
360 MENU AUTOBOOT message
362 Replaces the message "Automatic boot in # second{,s}...". The
363 symbol # is replaced with the number of seconds remaining.
364 The syntax "{singular,[dual,]plural}" can be used to conjugate
370 Replaces the message "Press [Tab] to edit options".
373 MENU NOTABMSG message
375 Takes the place of the TABMSG message if option editing is
376 disabled. Defaults to blank.
379 MENU PASSPROMPT message
381 Replaces the message "Password required".
384 MENU COLOR element ansi foreground background shadow
386 Sets the color of element "element" to the specified color
389 screen Rest of the screen
392 unsel Unselected menu item
393 hotkey Unselected hotkey
395 hotsel Selected hotkey
396 disabled Disabled menu item
398 tabmsg Press [Tab] message
399 cmdmark Command line marker
401 pwdborder Password box border
402 pwdheader Password box header
403 pwdentry Password box contents
404 timeout_msg Timeout message
405 timeout Timeout counter
407 msgXX Message (F-key) file attribute XX
409 ... where XX is two hexadecimal digits (the "plain text" is 07).
411 "ansi" is a sequence of semicolon-separated ECMA-48 Set
412 Graphics Rendition (<ESC>[m) sequences:
414 0 reset all attributes to their defaults
416 4 set underscore (simulated with color on a color display)
419 22 set normal intensity
423 30 set black foreground
424 31 set red foreground
425 32 set green foreground
426 33 set brown foreground
427 34 set blue foreground
428 35 set magenta foreground
429 36 set cyan foreground
430 37 set white foreground
431 38 set underscore on, set default foreground color
432 39 set underscore off, set default foreground color
433 40 set black background
434 41 set red background
435 42 set green background
436 43 set brown background
437 44 set blue background
438 45 set magenta background
439 46 set cyan background
440 47 set white background
441 49 set default background color
443 These are used (a) in text mode, and (b) on the serial
446 "foreground" and "background" are color codes in #AARRGGBB
447 notation, where AA RR GG BB are hexadecimal digits for alpha
448 (opacity), red, green and blue, respectively. #00000000
449 represents fully transparent, and #ffffffff represents opaque
452 "shadow" controls the handling of the graphical console text
453 shadow. Permitted values are "none" (no shadowing), "std" or
454 "standard" (standard shadowing - foreground pixels are
455 raised), "all" (both background and foreground raised), and
456 "rev" or "reverse" (background pixels are raised.)
458 If any field is set to "*" or omitted (at the end of the line)
459 then that field is left unchanged.
462 The current defaults are:
464 menu color screen 37;40 #80ffffff #00000000 std
465 menu color border 30;44 #40000000 #00000000 std
466 menu color title 1;36;44 #c00090f0 #00000000 std
467 menu color unsel 37;44 #90ffffff #00000000 std
468 menu color hotkey 1;37;44 #ffffffff #00000000 std
469 menu color sel 7;37;40 #e0000000 #20ff8000 all
470 menu color hotsel 1;7;37;40 #e0400000 #20ff8000 all
471 menu color disabled 1;30;44 #60cccccc #00000000 std
472 menu color scrollbar 30;44 #40000000 #00000000 std
473 menu color tabmsg 31;40 #90ffff00 #00000000 std
474 menu color cmdmark 1;36;40 #c000ffff #00000000 std
475 menu color cmdline 37;40 #c0ffffff #00000000 std
476 menu color pwdborder 30;47 #80ffffff #20ffffff std
477 menu color pwdheader 31;47 #80ff8080 #20ffffff std
478 menu color pwdentry 30;47 #80ffffff #20ffffff std
479 menu color timeout_msg 37;40 #80ffffff #00000000 std
480 menu color timeout 1;37;40 #c0ffffff #00000000 std
481 menu color help 37;40 #c0ffffff #00000000 std
482 menu color msg07 37;40 #90ffffff #00000000 std
485 MENU MSGCOLOR fg_filter bg_filter shadow
487 Sets *all* the msgXX colors to a color scheme derived from the
488 fg_filter and bg_filter values. Background color zero is
489 always treated as transparent. The default corresponds to:
491 menu msgcolor #90ffffff #80ffffff std
493 This directive should come before any directive that
494 customizes individual msgXX colors.
499 MENU PASSWORDMARGIN 3
507 MENU HELPMSGENDROW -1
512 These options control the layout of the menu on the screen.
513 The values above are the defaults.
515 A negative value is relative to the calculated length of the
516 screen (25 for text mode, 28 for VESA graphics mode.)
519 F1 textfile [background]
521 F12 textfile [background]
523 Displays full-screen help (also available at the command line.)
524 The same control code sequences as in the command line
525 interface are supported, although some are ignored.
527 Additionally, a optional second argument allows a different
528 background image (see MENU BACKGROUND for supported formats)
532 MENU HELP textfile [background]
534 Creates a menu entry which, when selected, displays
535 full-screen help in the same way as the F-key help.
538 The menu system honours the TIMEOUT command; if TIMEOUT is specified
539 it will execute the ONTIMEOUT command if one exists, otherwise it will
540 pick the default menu option. WARNING: the timeout action will bypass
541 password protection even if one is set for the specified or default
544 Normally, the user can press [Tab] to edit the menu entry, and [Esc]
545 to return to the Syslinux command line. However, if the configuration
546 file specifies ALLOWOPTIONS 0, these keys will be disabled, and if
547 MENU MASTER PASSWD is set, they require the master password.
549 The simple menu system supports serial console, using the normal
550 SERIAL directive. However, it can be quite slow over a slow serial
551 link; you probably want to set your baudrate to 38400 or higher if
552 possible. It requires a Linux/VT220/ANSI-compatible terminal on the
556 +++ USING AN ALTERNATE CONFIGURATION FILE +++
559 It is also possible to load a secondary configuration file, to get to
560 another menu. To do that, invoke menu.c32 with the name of the
561 secondary configuration file.
564 MENU LABEL Another Menu
566 APPEND othermenu.conf
568 If you specify more than one file, they will all be read, in the order
569 specified. The dummy filename ~ (tilde) is replaced with the filename
570 of the main configuration file.
572 # The file graphics.conf contains common color and layout commands for
575 MENU LABEL Another Menu
577 APPEND graphics.conf othermenu.conf
579 # Return to the main menu
581 MENU LABEL Return to Main Menu
583 APPEND graphics.conf ~
585 See also the MENU INCLUDE directive above.