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May 10, 2020 06:24
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Grub 31_hold_shift
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#! /bin/sh | |
set -e | |
# grub-mkconfig helper script. | |
# Copyright (C) 2006,2007,2008,2009 Free Software Foundation, Inc. | |
# | |
# GRUB is free software: you can redistribute it and/or modify | |
# it under the terms of the GNU General Public License as published by | |
# the Free Software Foundation, either version 3 of the License, or | |
# (at your option) any later version. | |
# | |
# GRUB is distributed in the hope that it will be useful, | |
# but WITHOUT ANY WARRANTY; without even the implied warranty of | |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
# GNU General Public License for more details. | |
# | |
# You should have received a copy of the GNU General Public License | |
# along with GRUB. If not, see <http://www.gnu.org/licenses/>. | |
prefix="/usr" | |
exec_prefix="${prefix}" | |
datarootdir="${prefix}/share" | |
export TEXTDOMAIN=grub | |
export TEXTDOMAINDIR="${datarootdir}/locale" | |
source "${datarootdir}/grub/grub-mkconfig_lib" | |
found_other_os= | |
make_timeout () { | |
if [ "x${GRUB_FORCE_HIDDEN_MENU}" = "xtrue" ] ; then | |
if [ "x${1}" != "x" ] ; then | |
if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then | |
verbose= | |
else | |
verbose=" --verbose" | |
fi | |
if [ "x${1}" = "x0" ] ; then | |
cat <<EOF | |
if [ "x\${timeout}" != "x-1" ]; then | |
if keystatus; then | |
if keystatus --shift; then | |
set timeout=-1 | |
else | |
set timeout=0 | |
fi | |
else | |
if sleep$verbose --interruptible 3 ; then | |
set timeout=0 | |
fi | |
fi | |
fi | |
EOF | |
else | |
cat << EOF | |
if [ "x\${timeout}" != "x-1" ]; then | |
if sleep$verbose --interruptible ${GRUB_HIDDEN_TIMEOUT} ; then | |
set timeout=0 | |
fi | |
fi | |
EOF | |
fi | |
fi | |
fi | |
} | |
adjust_timeout () { | |
if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ]; then | |
cat <<EOF | |
if cmostest $GRUB_BUTTON_CMOS_ADDRESS ; then | |
EOF | |
make_timeout "${GRUB_HIDDEN_TIMEOUT_BUTTON}" "${GRUB_TIMEOUT_BUTTON}" | |
echo else | |
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}" | |
echo fi | |
else | |
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}" | |
fi | |
} | |
adjust_timeout | |
cat <<EOF | |
if [ "x\${timeout}" != "x-1" ]; then | |
if keystatus; then | |
if keystatus --shift; then | |
set timeout=-1 | |
else | |
set timeout=0 | |
fi | |
else | |
if sleep$verbose --interruptible 3 ; then | |
set timeout=0 | |
fi | |
fi | |
fi | |
EOF |
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