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.
(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]
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]
MENU 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
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