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/usr/sbin/grub-mkconfig: 1: /etc/default/grub: If: not found

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ls /etc/default

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cat /etc/default/grub

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gipsy@acer:~$ ls /etc/default
alsa           crda  devpts      keyboard  ntp      rsyslog
apport         cron  grub        locale    ntpdate  ufw
bootlogd       cups  halt        nss       rcS      useradd
console-setup  dbus  irqbalance  ntfs-3g   rsync

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gipsy@acer:~$ cat /etc/default/grub
 If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
#GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=15
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

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sudo update-grub

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cat /usr/sbin/grub-mkconfig 

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gipsy@acer:~$ cat /usr/sbin/grub-mkconfig
#! /bin/sh
set -e

# Generate grub.cfg by inspecting /boot contents.
# Copyright (C) 2006,2007,2008,2009,2010 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/>.

transform="s,x,x,"
prefix="/usr"
exec_prefix="${prefix}"
datarootdir="${prefix}/share"

prefix="/usr"
exec_prefix="${prefix}"
sbindir="${exec_prefix}/sbin"
bindir="${exec_prefix}/bin"
sysconfdir="/etc"
PACKAGE_NAME=GRUB
PACKAGE_VERSION=1.99-21ubuntu3.1
host_os=linux-gnu
datadir="${datarootdir}"
pkgdatadir="${datadir}/`echo grub | sed "${transform}"`"
grub_cfg=""
grub_mkconfig_dir="${sysconfdir}"/grub.d

self=`basename $0`

grub_probe="${sbindir}/`echo grub-probe | sed "${transform}"`"
grub_script_check="${bindir}/`echo grub-script-check | sed "${transform}"`"

GRUB_PREFIX=`echo '/boot/grub' | sed "s,//*,/,g"`

# Usage: usage
# Print the usage.
usage () {
    cat <<EOF
Usage: $self [OPTION]
Generate a grub config file

  -o, --output=FILE       output generated config to FILE [default=stdout]
  -h, --help              print this message and exit
  -v, --version           print the version information and exit

Report bugs to <bug-grub@gnu.org>.
EOF
}

argument () {
  opt=$1
  shift

  if test $# -eq 0; then
      echo "$0: option requires an argument -- '$opt'" 1>&2
      exit 1
  fi
  echo $1
}

# Check the arguments.
while test $# -gt 0
do
    option=$1
    shift

    case "$option" in
    -h | --help)
	usage
	exit 0 ;;
    -v | --version)
	echo "$self (${PACKAGE_NAME}) ${PACKAGE_VERSION}"
	exit 0 ;;
    -o | --output)
	grub_cfg=`argument $option "$@"`; shift;;
    --output=*)
	grub_cfg=`echo "$option" | sed 's/--output=//'`
	;;
    -*)
	echo "Unrecognized option \`$option'" 1>&2
	usage
	exit 1
	;;
    # Explicitly ignore non-option arguments, for compatibility.
    esac
done

. "${datadir}/grub/grub-mkconfig_lib"

if [ "x$EUID" = "x" ] ; then
  EUID=`id -u`
fi

if [ "$EUID" != 0 ] ; then
  root=f
  case "`uname 2>/dev/null`" in
    CYGWIN*)
      # Cygwin: Assume root if member of admin group
      for g in `id -G 2>/dev/null` ; do
	case $g in
	  0|544) root=t ;;
	esac
      done ;;
  esac
  if [ $root != t ] ; then
    echo "$self: You must run this as root" >&2
    exit 1
  fi
fi

set $grub_probe dummy
if test -f "$1"; then
    :
else
    echo "$1: Not found." 1>&2
    exit 1
fi

mkdir -p ${GRUB_PREFIX}

# Device containing our userland.  Typically used for root= parameter.
GRUB_DEVICE="`${grub_probe} --target=device /`"
GRUB_DEVICE_UUID="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true

# Device containing our /boot partition.  Usually the same as GRUB_DEVICE.
GRUB_DEVICE_BOOT="`${grub_probe} --target=device /boot`"
GRUB_DEVICE_BOOT_UUID="`${grub_probe} --device ${GRUB_DEVICE_BOOT} --target=fs_uuid 2> /dev/null`" || true

# Filesystem for the device containing our userland.  Used for stuff like
# choosing Hurd filesystem module.
GRUB_FS="`${grub_probe} --device ${GRUB_DEVICE} --target=fs 2> /dev/null || echo unknown`"

if test -f ${sysconfdir}/default/grub ; then
  . ${sysconfdir}/default/grub
fi

# XXX: should this be deprecated at some point?
if [ "x${GRUB_TERMINAL}" != "x" ] ; then
  GRUB_TERMINAL_INPUT="${GRUB_TERMINAL}"
  GRUB_TERMINAL_OUTPUT="${GRUB_TERMINAL}"
fi

termoutdefault=0
if [ "x${GRUB_TERMINAL_OUTPUT}" = "x" ]; then
    GRUB_TERMINAL_OUTPUT=gfxterm;
    termoutdefault=1;
fi

for x in ${GRUB_TERMINAL_OUTPUT}; do
    if [ "x${x}" = "xgfxterm" ]; then
	if [ -n "$GRUB_FONT" ] ; then
	    if is_path_readable_by_grub ${GRUB_FONT} > /dev/null ; then
		GRUB_FONT_PATH=${GRUB_FONT}
	    else
		echo "No such font or not readable by grub: ${GRUB_FONT}" >&2
		exit 1
	    fi
	else
	    for dir in ${pkgdatadir} ${GRUB_PREFIX} /usr/share/grub ; do
		for basename in unicode unifont ascii; do
		    path="${dir}/${basename}.pf2"
		    if is_path_readable_by_grub ${path} > /dev/null ; then
			GRUB_FONT_PATH=${path}
		    else
			continue
		    fi
		    if [ "${basename}" = "ascii" ] ; then
	                # make sure all our children behave in conformance with ascii..
			export LANG=C
		    fi
		    break 2
		done
	    done
	fi
	if [ -z "${GRUB_FONT_PATH}" ] ; then
	    if [ "x$termoutdefault" != "x1" ]; then
		echo "No font for gfxterm found." >&2 ; exit 1
	    fi
	    GRUB_TERMINAL_OUTPUT=
	fi
    fi
done

for x in ${GRUB_TERMINAL_OUTPUT}; do
    case "x${x}" in
	xgfxterm) ;;
	xconsole | xserial | xofconsole)
            # make sure all our children behave in conformance with ascii..
	    export LANG=C;;
	*) echo "Invalid output terminal \"${GRUB_TERMINAL_OUTPUT}\"" >&2 ; exit 1 ;;
    esac
done

# These are defined in this script, export them here so that user can
# override them.
export GRUB_DEVICE \
  GRUB_DEVICE_UUID \
  GRUB_DEVICE_BOOT \
  GRUB_DEVICE_BOOT_UUID \
  GRUB_FS \
  GRUB_FONT_PATH \
  GRUB_PRELOAD_MODULES \
  GRUB_PREFIX

# These are optional, user-defined variables.
export GRUB_DEFAULT \
  GRUB_HIDDEN_TIMEOUT \
  GRUB_HIDDEN_TIMEOUT_QUIET \
  GRUB_TIMEOUT \
  GRUB_DEFAULT_BUTTON \
  GRUB_HIDDEN_TIMEOUT_BUTTON \
  GRUB_TIMEOUT_BUTTON \
  GRUB_BUTTON_CMOS_ADDRESS \
  GRUB_BUTTON_CMOS_CLEAN \
  GRUB_DISTRIBUTOR \
  GRUB_CMDLINE_LINUX \
  GRUB_CMDLINE_LINUX_DEFAULT \
  GRUB_CMDLINE_XEN \
  GRUB_CMDLINE_XEN_DEFAULT \
  GRUB_CMDLINE_LINUX_XEN_REPLACE \
  GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT \
  GRUB_CMDLINE_NETBSD \
  GRUB_CMDLINE_NETBSD_DEFAULT \
  GRUB_CMDLINE_GNUMACH \
  GRUB_TERMINAL_INPUT \
  GRUB_TERMINAL_OUTPUT \
  GRUB_SERIAL_COMMAND \
  GRUB_DISABLE_LINUX_UUID \
  GRUB_DISABLE_RECOVERY \
  GRUB_VIDEO_BACKEND \
  GRUB_GFXMODE \
  GRUB_BACKGROUND \
  GRUB_THEME \
  GRUB_GFXPAYLOAD_LINUX \
  GRUB_DISABLE_OS_PROBER \
  GRUB_INIT_TUNE \
  GRUB_SAVEDEFAULT \
  GRUB_BADRAM

if test "x${grub_cfg}" != "x"; then
  rm -f ${grub_cfg}.new
  exec > ${grub_cfg}.new

  # Allow this to fail, since /boot/grub/ might need to be fatfs to support some
  # firmware implementations (e.g. OFW or EFI).
  chmod 400 ${grub_cfg}.new || grub_warn "Could not make ${grub_cfg}.new readable by only root.\
  This means that if the generated config contains a password it is readable by everyone"
fi
echo "Generating grub.cfg ..." >&2

cat << EOF
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by $self using templates
# from ${grub_mkconfig_dir} and settings from ${sysconfdir}/default/grub
#
EOF

for i in ${grub_mkconfig_dir}/* ; do
  case "$i" in
    # emacsen backup files. FIXME: support other editors
    *~) ;;
    # emacsen autosave files. FIXME: support other editors
    \#*\#) ;;
    *)
      if grub_file_is_not_garbage "$i" && test -x "$i" ; then
        echo
        echo "### BEGIN $i ###"
        "$i"
        echo "### END $i ###"
      fi
    ;;
  esac
done

if [ "x${grub_cfg}" != "x" ] && ! grep "^password " ${grub_cfg}.new >/dev/null; then
  chmod 444 ${grub_cfg}.new || true
fi

if test "x${grub_cfg}" != "x" ; then
  if ! ${grub_script_check} ${grub_cfg}.new; then
    echo "Syntax errors are detected in generated GRUB config file." >&2
    echo "Ensure that there are no errors in /etc/default/grub" >&2
    echo "and /etc/grub.d/* files or please file a bug report with" >&2
    echo "${grub_cfg}.new file attached." >&2
  else
    # none of the children aborted with error, install the new grub.cfg
    mv -f ${grub_cfg}.new ${grub_cfg}
  fi
fi

echo "done" >&2

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sudo rm /etc/default/grub

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sudo leafpad /etc/default/grub

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# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
#GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=15
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="acpi_osi=Linux acpi_backlight=vendor"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

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sudo update-grub

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sudo cp /etc/default/grub /home/gipsy/grub

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sudo dpkg-reconfigure grub-pc

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sudo apt-get install grub-legacy