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Thread: grub2 multiboot hide menu

  1. #1
    Join Date
    Mar 2013
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    4

    grub2 multiboot hide menu

    Hello. I was searching for few days the way to hide grub2 menu unless I hold shift key. It's a multiboot system (linux + windows 8) so it was a bit harder to find the solution. But I'm almost there. Have two more problems. But first here's my current status. I only needed to change contents of 30_os-prober in /etc/grub.d/. I changed the following code:


    Code:
    make_timeout () {  if [ "x${found_other_os}" = "x" ] ; then    if [ "x${1}" != "x" ] ; then      if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then    verbose=      else    verbose=" --verbose"      fi      if [ "x${1}" = "x0" ] ; then    cat <<EOFif [ "x\${timeout}" != "x-1" ]; then  if keystatus; then    if keystatus --shift; then      set timeout=-1    else      set timeout=0    fi  else    if sleep$verbose --interruptible 3 ; then      set timeout=0    fi  fifiEOF      else    cat << EOFif [ "x\${timeout}" != "x-1" ]; then  if sleep$verbose --interruptible ${GRUB_HIDDEN_TIMEOUT} ; then    set timeout=0  fifiEOF      fi    fi  fi}adjust_timeout () {  if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ]; then    cat <<EOFif cmostest $GRUB_BUTTON_CMOS_ADDRESS ; thenEOF    make_timeout "${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}
    to:


    Code:
    adjust_timeout () {        cat <<EOF        if keystatus --shift; then          set timeout=-1        else          set timeout=0        fiEOF}
    But now I have a problem. When I run sudo update-grub it doubles the Windows 8 recognition so I get:

    Generating grub.cfg ...
    Found linux image: /boot/vmlinuz-3.5.0-17-generic
    Found initrd image: /boot/initrd.img-3.5.0-17-generic
    Found memtest86+ image: /boot/memtest86+.bin
    Found Windows 8 (loader) on /dev/sda1
    Found Windows 8 (loader) on /dev/sda1
    done

    Could anyone see where is the error. Here's complete code of changed 30_os-prober:



    Code:
    #! /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"
    
    
    . "${datarootdir}/grub/grub-mkconfig_lib"
    
    
    found_other_os=
    
    
    adjust_timeout () {
            cat <<EOF
            if keystatus --shift; then
              set timeout=-1
            else
              set timeout=0
            fi
    EOF
    }
    
    
    if [ "x${GRUB_DISABLE_OS_PROBER}" = "xtrue" ]; then
      adjust_timeout
      exit 0
    fi
    
    
    if [ -z "`which os-prober 2> /dev/null`" -o -z "`which linux-boot-prober 2> /dev/null`" ] ; then
      # missing os-prober and/or linux-boot-prober
      adjust_timeout
      exit 0
    fi
    
    
    OSPROBED="`os-prober | tr ' ' '^' | paste -s -d ' '`"
    if [ -z "${OSPROBED}" ] ; then
      # empty os-prober output, nothing doing
      adjust_timeout
      exit 0
    fi
    
    
    osx_entry() {
        found_other_os=1
        if [ x$2 = x32 ]; then
            # TRANSLATORS: it refers to kernel architecture (32-bit)
        bitstr="$(gettext "(32-bit)")"
        else
            # TRANSLATORS: it refers to kernel architecture (64-bit)
        bitstr="$(gettext "(64-bit)")"
        fi
        # TRANSLATORS: it refers on the OS residing on device %s
        onstr="$(gettext_printf "(on %s)" "${DEVICE}")"
            cat << EOF
    menuentry '$(echo "${LONGNAME} $bitstr $onstr" | grub_quote)' --class osx --class darwin --class os \$menuentry_id_option 'osprober-xnu-$2-$(grub_get_device_id "${DEVICE}")'  {
    EOF
        save_default_entry | sed -e "s/^/\t/"
        prepare_grub_to_access_device ${DEVICE} | sed -e "s/^/\t/"
        cat << EOF
            load_video
            set do_resume=0
            if [ /var/vm/sleepimage -nt10 / ]; then
               if xnu_resume /var/vm/sleepimage; then
                 set do_resume=1
               fi
            fi
            if [ \$do_resume = 0 ]; then
               xnu_uuid ${OSXUUID} uuid
               if [ -f /Extra/DSDT.aml ]; then
                  acpi -e /Extra/DSDT.aml
               fi
               if [ /kernelcache -nt /System/Library/Extensions ]; then
                  $1 /kernelcache boot-uuid=\${uuid} rd=*uuid
               else
                  $1 /mach_kernel boot-uuid=\${uuid} rd=*uuid
                  if [ /System/Library/Extensions.mkext -nt /System/Library/Extensions ]; then
                    xnu_mkext /System/Library/Extensions.mkext
                  else
                    xnu_kextdir /System/Library/Extensions
                  fi
               fi
               if [ -f /Extra/Extensions.mkext ]; then
                  xnu_mkext /Extra/Extensions.mkext
               fi
               if [ -d /Extra/Extensions ]; then
                  xnu_kextdir /Extra/Extensions
               fi
               if [ -f /Extra/devprop.bin ]; then
                  xnu_devprop_load /Extra/devprop.bin
               fi
               if [ -f /Extra/splash.jpg ]; then
                  insmod jpeg
                  xnu_splash /Extra/splash.jpg
               fi
               if [ -f /Extra/splash.png ]; then
                  insmod png
                  xnu_splash /Extra/splash.png
               fi
               if [ -f /Extra/splash.tga ]; then
                  insmod tga
                  xnu_splash /Extra/splash.tga
               fi
            fi
    }
    EOF
    }
    
    
    used_osprober_linux_ids=
    
    
    wubi=
    
    
    for OS in ${OSPROBED} ; do
      DEVICE="`echo ${OS} | cut -d ':' -f 1`"
      LONGNAME="`echo ${OS} | cut -d ':' -f 2 | tr '^' ' '`"
      LABEL="`echo ${OS} | cut -d ':' -f 3 | tr '^' ' '`"
      BOOT="`echo ${OS} | cut -d ':' -f 4`"
    
    
      if [ -z "${LONGNAME}" ] ; then
        LONGNAME="${LABEL}"
      fi
    
    
      gettext_printf "Found %s on %s\n" "${LONGNAME}" "${DEVICE}" >&2
    
    
      case ${BOOT} in
        chain)
    
    
          case ${LONGNAME} in
        Windows*)
          if [ -z "$wubi" ]; then
            if [ -x /usr/share/lupin-support/grub-mkimage ] && \
               /usr/share/lupin-support/grub-mkimage --test; then
              wubi=yes
            else
              wubi=no
            fi
          fi
          if [ "$wubi" = yes ]; then
            echo "Skipping ${LONGNAME} on Wubi system" >&2
            continue
          fi
          ;;
          esac
    
    
          found_other_os=1
          onstr="$(gettext_printf "(on %s)" "${DEVICE}")"
          cat << EOF
    menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' --class windows --class os \$menuentry_id_option 'osprober-chain-$(grub_get_device_id "${DEVICE}")' {
    EOF
          save_default_entry | sed -e "s/^/\t/"
          prepare_grub_to_access_device ${DEVICE} | sed -e "s/^/\t/"
    
    
          case ${LONGNAME} in
        Windows\ Vista*|Windows\ 7*|Windows\ Server\ 2008*)
        ;;
        *)
          cat << EOF
        drivemap -s (hd0) \${root}
    EOF
        ;;
          esac
    
    
          cat <<EOF
        chainloader +1
    }
    EOF
        ;;
        linux)
          LINUXPROBED="`linux-boot-prober ${DEVICE} 2> /dev/null | tr ' ' '^' | paste -s -d ' '`"
          prepare_boot_cache=
          boot_device_id=
          is_first_entry=true
          title_correction_code=
          OS="${LONGNAME}"
    
    
          for LINUX in ${LINUXPROBED} ; do
            LROOT="`echo ${LINUX} | cut -d ':' -f 1`"
            LBOOT="`echo ${LINUX} | cut -d ':' -f 2`"
            LLABEL="`echo ${LINUX} | cut -d ':' -f 3 | tr '^' ' '`"
            LKERNEL="`echo ${LINUX} | cut -d ':' -f 4`"
            LINITRD="`echo ${LINUX} | cut -d ':' -f 5`"
            LPARAMS="`echo ${LINUX} | cut -d ':' -f 6- | tr '^' ' '`"
    
    
            if [ -z "${LLABEL}" ] ; then
              LLABEL="${LONGNAME}"
            fi
    
    
        if [ "${LROOT}" != "${LBOOT}" ]; then
          LKERNEL="${LKERNEL#/boot}"
          LINITRD="${LINITRD#/boot}"
        fi
    
    
        if [ -z "${prepare_boot_cache}" ]; then
          prepare_boot_cache="$(prepare_grub_to_access_device ${LBOOT} | sed -e "s/^/\t/")"
          [ "${prepare_boot_cache}" ] || continue
        fi
    
    
        found_other_os=1
        onstr="$(gettext_printf "(on %s)" "${DEVICE}")"
        recovery_params="$(echo "${LPARAMS}" | grep 'single\|recovery')" || true
        counter=1
        while echo "$used_osprober_linux_ids" | grep 'osprober-gnulinux-$LKERNEL-${recovery_params}-$counter-$boot_device_id' > /dev/null; do
            counter=$((counter+1));
        done
        if [ -z "$boot_device_id" ]; then
            boot_device_id="$(grub_get_device_id "${DEVICE}")"
        fi
        used_osprober_linux_ids="$used_osprober_linux_ids 'osprober-gnulinux-$LKERNEL-${recovery_params}-$counter-$boot_device_id'"
    
    
        if [ "x$is_first_entry" = xtrue ]; then
                cat << EOF
    menuentry '$(echo "$OS" | grub_quote)' --class gnu-linux --class gnu --class os \$menuentry_id_option 'osprober-gnulinux-simple-$boot_device_id' {
    EOF
            save_default_entry | sed -e "s/^/\t/"
            printf '%s\n' "${prepare_boot_cache}"
            cat <<  EOF
        linux ${LKERNEL} ${LPARAMS}
    EOF
                if [ -n "${LINITRD}" ] ; then
              cat << EOF
        initrd ${LINITRD}
    EOF
                fi
            cat << EOF
    }
    EOF
            echo "submenu '$(gettext_printf "Advanced options for %s" "${OS}" | grub_quote)' \$menuentry_id_option 'osprober-gnulinux-advanced-$boot_device_id' {"
            is_first_entry=false
        fi
        title="${LLABEL} $onstr"
            cat << EOF
        menuentry '$(echo "$title" | grub_quote)' --class gnu-linux --class gnu --class os \$menuentry_id_option 'osprober-gnulinux-$LKERNEL-${recovery_params}-$boot_device_id' {
    EOF
        save_default_entry | sed -e "s/^/\t\t/"
        printf '%s\n' "${prepare_boot_cache}" | sed -e "s/^/\t/"
        cat <<  EOF
            linux ${LKERNEL} ${LPARAMS}
    EOF
            if [ -n "${LINITRD}" ] ; then
                cat << EOF
            initrd ${LINITRD}
    EOF
            fi
            cat << EOF
        }
    EOF
        if [ x"$title" = x"$GRUB_ACTUAL_DEFAULT" ] || [ x"Previous Linux versions>$title" = x"$GRUB_ACTUAL_DEFAULT" ]; then
            replacement_title="$(echo "Advanced options for ${OS}" | sed 's,>,>>,g')>$(echo "$title" | sed 's,>,>>,g')"
            quoted="$(echo "$GRUB_ACTUAL_DEFAULT" | grub_quote)"
            title_correction_code="${title_correction_code}if [ \"x\$default\" = '$quoted' ]; then default='$(echo "$replacement_title" | grub_quote)'; fi;"
            grub_warn "$(gettext_printf "Please don't use old title \`%s' for GRUB_DEFAULT, use \`%s' (for versions before 2.00) or \`%s' (for 2.00 or later)" "$GRUB_ACTUAL_DEFAULT" "$replacement_title" "gnulinux-advanced-$boot_device_id>gnulinux-$version-$type-$boot_device_id")"
        fi
          done
          if [ x"$is_first_entry" != xtrue ]; then
          echo '}'
          fi
          echo "$title_correction_code"
        ;;
        macosx)
          OSXUUID="`${grub_probe} --target=fs_uuid --device ${DEVICE} 2> /dev/null`"
          osx_entry xnu_kernel 32
          osx_entry xnu_kernel64 64
        ;;
        hurd)
          found_other_os=1
          onstr="$(gettext_printf "(on %s)" "${DEVICE}")"
          cat << EOF
    menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' --class hurd --class gnu --class os \$menuentry_id_option 'osprober-gnuhurd-/boot/gnumach.gz-false-$(grub_get_device_id "${DEVICE}")' {
    EOF
          save_default_entry | sed -e "s/^/\t/"
          prepare_grub_to_access_device ${DEVICE} | sed -e "s/^/\t/"
          grub_device="`${grub_probe} --device ${DEVICE} --target=drive`"
          mach_device="`echo "${grub_device}" | sed -e 's/(\(hd.*\),msdos\(.*\))/\1s\2/'`"
          grub_fs="`${grub_probe} --device ${DEVICE} --target=fs`"
          case "${grub_fs}" in
        *fs)    hurd_fs="${grub_fs}" ;;
        *)    hurd_fs="${grub_fs}fs" ;;
          esac
          cat << EOF
        multiboot /boot/gnumach.gz root=device:${mach_device}
        module /hurd/${hurd_fs}.static ${hurd_fs} --readonly \\
                --multiboot-command-line='\${kernel-command-line}' \\
                --host-priv-port='\${host-port}' \\
                --device-master-port='\${device-port}' \\
                --exec-server-task='\${exec-task}' -T typed '\${root}' \\
                '\$(task-create)' '\$(task-resume)'
        module /lib/ld.so.1 exec /hurd/exec '\$(exec-task=task-create)'
    }
    EOF
        ;;
        *)
          echo -n "  "
          # TRANSLATORS: %s is replaced by OS name.
          gettext_printf "%s is not yet supported by grub-mkconfig.\n" "${LONGNAME}" >&2
        ;;
      esac
    done

    adjust_timeout

    So, that's the problem.

    TIA
    Last edited by zardoz1971; March 25th, 2013 at 10:08 PM. Reason: Added code tags (# in Advanced edit menu)

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: grub2 multiboot hide menu

    Added code tags using # from advanced edit menu. Please use code tags for long posting of code or data.

    Did you make a backup of 30_custom? All executeable files in grub folder are run, so it may also run backup?

    I do not edit scripts as you can get into the issues you have. I have not used grub customizer but it does everything you want.
    New Grub Customizer works with 12.10
    http://www.webupd8.org/2012/09/grub-...-released.html

    The Grub 2 Guide - drs305 also link to grub customizer
    Ubuntu Community Documentation site
    http://ubuntuforums.org/showthread.php?t=1195275

    But I do not use Grub Customizer. I just copy entries into 40_custom and edit at will. And if I want to change timeout, I would just directly edit /etc/default/grub file. But I started with drs305's instructions long before Grub Customizer.

    gedit /boot/grub/grub.cfg
    Copy Windows entry to and edit only titles:
    gksudo gedit /etc/grub.d/40_custom
    Then do:
    sudo update-grub

    Then I turn os-prober off.
    In /etc/default/grub I added this:
    gksudo gedit /etc/default/grub
    GRUB_DISABLE_OS_PROBER=true
    or turn off executeable bit
    sudo chmod a-x /etc/grub.d/30_os-prober
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #3
    Join Date
    Mar 2013
    Beans
    4

    Re: grub2 multiboot hide menu

    Quote Originally Posted by oldfred View Post
    Added code tags using # from advanced edit menu. Please use code tags for long posting of code or data.
    Yea. Sorry. Noticed when I posted already.

    Quote Originally Posted by oldfred View Post
    Did you make a backup of 30_custom? All executeable files in grub folder are run, so it may also run backup?
    That's it. Thank you for this. I backed up original and left it in the same folder. After removing it it was O.K.

    Quote Originally Posted by oldfred View Post
    I do not edit scripts as you can get into the issues you have. I have not used grub customizer but it does everything you want.
    It was my first choice but couldn't do what I wanted. Also I found in this forum somewhere that it works only for single boot systems. With multiboot only editing scripts helps.
    New Grub Customizer works with 12.10

    Thank you very much for your help. I guess I can mark this as SOLVED.

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