-There are two menu systems included with SYSLINUX, the advanced menu
+There are two menu systems included with Syslinux, the advanced menu
system, and the simple menu system.
The simple menu system is a single module located at
com32/modules/vesamenu.c32 (graphical) or com32/modules/menu.c32 (text
mode only). It uses the same configuration file as the regular
-SYSLINUX command line, and displays all the LABEL statements.
+Syslinux command line, and displays all the LABEL statements.
To use the menu system, simply make sure [vesa]menu.c32 is in the
appropriate location for your boot medium (the same directory as the
directory as pxelinux.0 for PXELINUX), and put the following options
in your configuration file:
-DEFAULT menu.c32
-PROMPT 0
+UI menu.c32
-There are a few menu additions to the command line, all starting with
-the keywords MENU or TEXT; like the rest of the SYSLINUX config file
-language, it is case insensitive:
+There are a few menu additions to the configuration file, all starting
+with the keywords MENU or TEXT; like the rest of the Syslinux config
+file language, it is case insensitive:
+
MENU TITLE title
Give the menu a title. The title is presented at the top of
the menu.
+
MENU HIDDEN
Do not display the actual menu unless the user presses a key.
All that is displayed is a timeout message.
+
+MENU CLEAR
+
+ Clear the screen when exiting the menu, instead of leaving the
+ menu displayed. For vesamenu, this means the graphical
+ background is still displayed without the menu itself for as
+ long as the screen remains in graphics mode.
+
+
+MENU SHIFTKEY
+
+ Exit the menu system immediately unless either the Shift or Alt
+ key is pressed, or Caps Lock or Scroll Lock is set.
+
+
MENU SEPARATOR
Insert an empty line in the menu.
+
MENU LABEL label
(Only valid after a LABEL statement.)
(Only valid after a LABEL statement.)
Will add "count" spaces in front of the displayed menu entry.
+
MENU DISABLE
(Only valid after a LABEL statement.)
MENU DEFAULT
(Only valid after a LABEL statement.)
- Indicates that this entry should be the default. If no
- default is specified, use the first one.
+
+ Indicates that this entry should be the default for this
+ particular submenu. See also the DEFAULT directive below.
TEXT HELP
(Only valid after a LABEL statement.)
Sets a password on this menu entry. "passwd" can be either a
- cleartext password, a SHA-1 encrypted password (starting with
- $4$), or and MD5 encrypted password (starting with $1$).
+ cleartext password or a password encrypted with one of the
+ following algorithms:
+
+ MD5 (Signature: $1$)
+ SHA-1 (Signature: $4$)
+ SHA-2-256 (Signature: $5$)
+ SHA-2-512 (Signature: $6$)
Use the included Perl scripts "sha1pass" or "md5pass" to
encrypt passwords. MD5 passwords are compatible with most
Unix password file utilities; SHA-1 passwords are probably
- unique to SYSLINUX. Obviously, if you don't encrypt your
- passwords they will not be very secure at all.
+ unique to Syslinux; SHA-2 passwords are compatible with very
+ recent Linux distributions. Obviously, if you don't encrypt
+ your passwords they will not be very secure at all.
If you are using passwords, you want to make sure you also use
the settings "NOESCAPE 1", "PROMPT 0", and either set
work.
+MENU RESOLUTION height width
+
+ Requests a specific screen resolution when in graphics mode.
+ The default is "640 480" corresponding to a resolution of
+ 640x480 pixels, which all VGA-compatible monitors should be
+ able to display.
+
+ If the selected resolution is unavailable, the text mode menu
+ is displayed instead.
+
+
MENU BACKGROUND background
For vesamenu.c32, sets the background image. The background
can either be a color (see MENU COLOR) or the name of an image
- file, which should be 640x480 pixels and either in PNG or JPEG
- format.
+ file, which should be the size of the screen (normally 640x480
+ pixels, but see MENU RESOLUTION) and either in PNG, JPEG or
+ LSS16 format.
MENU BEGIN [tagname]
(Only valid inside MENU BEGIN ... MENU END)
Indicates that the menu system should start at the menu being
- defined instead of at the top-level menu.
+ defined instead of at the top-level menu. See also the
+ DEFAULT directive below.
+
+
+DEFAULT label
+
+ Set the global default. If "label" points into a submenu,
+ that menu becomes the start menu; in other words, this
+ directive has the same effect as both MENU DEFAULT and MENU
+ START.
+
+ For backwards compatibility with earlier versions of Syslinux,
+ this directive is ignored unless the configuration file also
+ contains a UI directive.
+
+ Note: the CLI accepts options after the label, or even a
+ non-label. The menu system does not support that.
+
+
+MENU SAVE
+MENU NOSAVE
+
+ Remember the last entry selected and make that the default for
+ the next boot. A password-protected menu entry is *not*
+ saved. This requires the ADV data storage mechanism, which is
+ currently only implemented for EXTLINUX, although the other
+ Syslinux derivatives will accept the command (and ignore it.)
+
+ NOTE: MENU SAVE stores the LABEL tag of the selected entry;
+ this mechanism therefore relies on LABEL tags being unique.
+ On the other hand, it handles changes in the configuration
+ file gracefully.
+
+ NOTE: In software RAID-1 setups MENU SAVE only stores the
+ default label on the actual boot disk. This may lead to
+ inconsistent reads from the array, or unexpectedly change the
+ default label after array resynchronization or disk failure.
+
+ The MENU SAVE information can be fully cleared with
+ "extlinux --reset-adv <bootdir>".
+
+ A MENU SAVE or MENU NOSAVE at the top of a (sub)menu affects
+ all entries underneath that (sub)menu except those that in
+ turn have MENU SAVE or MENU NOSAVE declared. This can be used
+ to only save certain entires when selected.
INCLUDE filename [tagname]
The menu system honours the TIMEOUT command; if TIMEOUT is specified
it will execute the ONTIMEOUT command if one exists, otherwise it will
-pick the default menu option.
+pick the default menu option. WARNING: the timeout action will bypass
+password protection even if one is set for the specified or default
+entry!
Normally, the user can press [Tab] to edit the menu entry, and [Esc]
-to return to the SYSLINUX command line. However, if the configuration
+to return to the Syslinux command line. However, if the configuration
file specifies ALLOWOPTIONS 0, these keys will be disabled, and if
MENU MASTER PASSWD is set, they require the master password.
projects / profile / ivi / syslinux.git / blobdiff