If other operating systems are installed, then automatically unhide the
menu. Otherwise, if GRUB_HIDDEN_TIMEOUT is 0, then use keystatus if
available to check whether Shift is pressed. If it is, show the menu,
otherwise boot immediately. If keystatus is not available, then fall
back to a short delay interruptible with Escape.
This may or may not remain Ubuntu-specific, although it's not obviously
wanted upstream. It implements a requirement of
https://wiki.ubuntu.com/DesktopExperienceTeam/KarmicBootExperienceDesignSpec#Bootloader.
If the previous boot failed (defined as failing to get to the end of one
of the normal runlevels), then show the boot menu regardless.
Author: Richard Laager <rlaager@wiktel.com>
Author: Robie Basak <robie.basak@ubuntu.com>
Forwarded: no
Last-Update: 2015-09-04
Patch-Name: quick-boot.patch
If this option is enabled, then do all of the following:
Don't display introductory message about line editing unless we're
actually offering a shell prompt. (This is believed to be a workaround
for a different bug. We'll go with this for now, but will drop this in
favour of a better fix upstream if somebody figures out what that is.)
Don't clear the screen just before booting if we never drew the menu in
the first place.
Remove verbose messages printed before reading configuration. In some
ways this is awkward because it makes debugging harder, but it's a
requirement for a smooth-looking boot process; we may be able to do
better in future. Upstream doesn't want this, though.
Disable the cursor as well, for similar reasons of tidiness.
Suppress kernel/initrd progress messages, except in recovery mode.
Suppress "GRUB loading" message unless Shift is held down. Upstream
doesn't want this, as it makes debugging harder. Ubuntu wants it to
provide a cleaner boot experience.
Bug-Ubuntu: https://bugs.launchpad.net/bugs/386922
Bug-Ubuntu: https://bugs.launchpad.net/bugs/861048
Forwarded: (partial) http://lists.gnu.org/archive/html/grub-devel/2009-09/msg00056.html
Last-Update: 2019-05-24
Patch-Name: maybe-quiet.patch
Some terminals, like `grub-core/term/at_keyboard.c`, return `-1` in case
they are not ready yet.
if (! KEYBOARD_ISREADY (grub_inb (KEYBOARD_REG_STATUS)))
return -1;
Currently, that is treated as a key press, and the menu time-out is
cancelled/cleared. This is unwanted, as the boot is stopped and the user
manually has to select a menu entry. Therefore, adapt the condition to
require the key value also to be greater than 0.
`GRUB_TERM_NO_KEY` is defined as 0, so the condition could be collapsed
to greater or equal than (≥) 0, but the compiler will probably do that
for us anyway, so keep the cases separate for clarity.
This is tested with coreboot, the GRUB default payload, and the
configuration file `grub.cfg` below.
For GRUB:
$ ./autogen.sh
$ ./configure --with-platform=coreboot
$ make -j`nproc`
$ make default_payload.elf
For coreboot:
$ more grub.cfg
serial --unit 0 --speed 115200
set timeout=5
menuentry 'halt' {
halt
}
$ build/cbfstool build/coreboot.rom add-payload \
-f /dev/shm/grub/default_payload.elf -n fallback/payload -c lzma
$ build/cbfstool build/coreboot.rom add -f grub.cfg -n etc/grub.cfg -t raw
$ qemu-system-x86_64 --version
QEMU emulator version 3.1.0 (Debian 1:3.1+dfsg-2+b1)
Copyright (c) 2003-2018 Fabrice Bellard and the QEMU Project developers
$ qemu-system-x86_64 -M pc -bios build/coreboot.rom -serial stdio -nic none
Currently, the time-out is cancelled/cleared. With the commit, it is not.
With a small GRUB payload, this the problem is also reproducible on the
ASRock E350M1.
Link: http://lists.gnu.org/archive/html/grub-devel/2019-01/msg00037.html
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Add a new timeout_style environment variable and a corresponding
GRUB_TIMEOUT_STYLE configuration key for grub-mkconfig. This
controls hidden-timeout handling more simply than the previous
arrangements, and pressing any hotkeys associated with menu entries
during the hidden timeout will now boot the corresponding menu entry
immediately.
GRUB_HIDDEN_TIMEOUT=<non-empty> + GRUB_TIMEOUT=<non-zero> now
generates a warning, and if it shows the menu it will do so as if
the second timeout were not present. Other combinations are
translated into reasonable equivalents.
off new function grub_script_execute_new_scope. Change callers to use
either of them as appropriate.
* grub-core/commands/eval.c: New command eval.
* docs/grub.texi (Commands): Document it.
* grub-core/gfxmenu/gfxmenu.c (grub_gfxmenu_try): Move the call to
grub_gfxterm_fullscreen on error paths to ...
* grub-core/normal/menu.c (menu_init): ...here. Wait after showing
theme loading error.
* grub-core/normal/menu.c (grub_menu_execute_entry): New parameter
auto_boot. All users updated.
Declared static.
Handle chosen and default with submenus.
(grub_menu_execute_with_fallback): Declared static.
Don't notify failure if autobooted. Upper level does it.
(menuentry_eq): New function.
(get_entry_number): Use menuentry_eq.
(show_menu): New parameter "autobooted". All users updated.
(grub_show_menu): Likewise.
* include/grub/normal.h (grub_show_menu): Likewise.
* include/grub/menu.h (grub_menu_execute_entry): Removed.
(grub_menu_execute_with_fallback): Likewise.
* grub-core/commands/menuentry.c (grub_normal_add_menu_entry): New
parameter submenu. All users updated.
* grub-core/normal/main.c (free_menu): Rename to ...
(grub_normal_free_menu): ... this. Made global.
* grub-core/normal/menu.c (grub_menu_execute_entry): Open new context
if requested.
* grub-core/normal/menu_entry.c (screen): New field submenu.
(make_screen): Set submenu.
(run): Open new context if requested.
* include/grub/menu.h (grub_menu_entry): New field submenu.
* include/grub/normal.h (grub_normal_free_menu): New proto.
has a chance to see them.
* grub-core/kern/err.c (grub_err_printed_errors): New variable.
(grub_print_error): Increment grub_err_printed_errors.
* grub-core/normal/menu.c (grub_menu_execute_entry): Pause the
execution if any errors were displayed.
(show_menu): Remove old code for pause.
* grub-core/normal/menu_entry.c (run): Likewise.
* grub-core/normal/term.c (grub_normal_char_counter): Removed. All
users updated.
(grub_normal_get_char_counter): Likewise.
* include/grub/err.h (grub_err_printed_errors): New external variable.
* include/grub/normal.h (grub_normal_get_char_counter): Removed.
* Makefile.util.def (grub-mklayout): New file.
(grub-kbdcomp): New script.
* grub-core/Makefile.am (KERNEL_HEADER_FILES) [COND_mips_yeeloong]:
Add keyboard_layouts.h.
* grub-core/Makefile.core.def (kernel): Add commands/keylayouts.c and
commands/boot.c on yeeloong.
(keylayouts): New module.
* grub-core/bus/usb/ohci.c
* grub-core/bus/usb/uhci.c
* grub-core/bus/usb/usbhub.c (rescan): New variable.
(grub_usb_add_hub): Poll interrupt pipe for device handling.
(attach_root_port): Likewise.
(poll_nonroot_hub): Likewise.
(grub_usb_poll_devices): Likewise.
(detach_device): Close transfer.
* grub-core/bus/usb/usbtrans.c (grub_usb_execute_and_wait_transfer): New
function.
(grub_usb_bulk_setup_readwrite): Likewise.
(grub_usb_bulk_finish_readwrite): Likewise.
* grub-core/commands/keylayouts.c: New file.
* grub-core/commands/keystatus.c (grub_getkeystatus): New function.
* grub-core/commands/menuentry.c (hotkey_aliases): All several new
aliases.
* grub-core/term/at_keyboard.c: Restructured to use keylayouts and
support scancode 2.
* grub-core/term/usb_keyboard.c: Restructured to use keylayouts.
* include/grub/keyboard_layouts.h: New file.
* util/grub-mklayout.c: New file.
* util/grub-kbdcomp.in: Likewise.
Also-By: Aleš Nesrsta <starous@volny.cz>
Also-By: Vladimir Serbinenko <phcoder@gmail.com>
