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#1 2018-01-29 11:03:46

Head_on_a_Stick
Member
From: London
Registered: 2015-09-29
Posts: 9,067
Website

CLI boot option in grub menu

[mod]This thread split from here: https://forums.bunsenlabs.org/viewtopic.php?id=4559

johnraff wrote:

Add "boot in cli" option to grub menu?

orionH wrote:

a "boot in cli option" would be very nice.

Unfortunately, there is no easy way to do this with /etc/default/grub & grub-mkconfig, as far as I can see sad

The stock BunsenLabs GRUB menu does contain "recovery" entries in the "Advanced Options" submenu but these do not actually work (and probably should be removed) because the root account is locked.

I think we have to accept the "live" ISO as our official recovery method — I could try adding boot entries in the ISO image to start any on-disk kernels, just like the SuperGRUB disk does, if there was any interest in that.

Last edited by johnraff (2018-01-31 03:53:49)

Para todos todo, para nosotros nada

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#2 2018-01-30 05:45:00

johnraff
nullglob
From: Nagoya, Japan
Registered: 2015-09-09
Posts: 12,558
Website

Re: CLI boot option in grub menu

Head_on_a_Stick wrote:
johnraff wrote:

Add "boot in cli" option to grub menu?

orionH wrote:

a "boot in cli option" would be very nice.

Unfortunately, there is no easy way to do this with /etc/default/grub & grub-mkconfig, as far as I can see

Maybe not easy, but perhaps something can be added to /etc/grub.d? That's where the other entries are generated.
Can you give me an example of what kind of line would have to be added?

The stock BunsenLabs GRUB menu does contain "recovery" entries in the "Advanced Options" submenu but these do not actually work (and probably should be removed) because the root account is locked.

Some users might want to enable a root account though, so it might be a bit unfriendly to remove those recovery entries?

...elevator in the Brain Hotel, broken down but just as well...
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#3 2018-01-30 07:28:38

johnraff
nullglob
From: Nagoya, Japan
Registered: 2015-09-09
Posts: 12,558
Website

Re: CLI boot option in grub menu

For a cli login, I made an edited copy of /etc/grub.d/10_linux and saved it as /etc/grub.d/15_bunsen-tty.
Here:

#! /bin/sh
set -e

# grub-mkconfig helper script.
# 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/>.

# a copy of 10_linux, edited to output the default menu entry only,
# with a command suffix of 'systemd.unit=multi-user.target'
# for a "BunsenLabs TTY" login

prefix="/usr"
exec_prefix="/usr"
datarootdir="/usr/share"
ubuntu_recovery="0"
quiet_boot="0"
quick_boot="0"
gfxpayload_dynamic="0"
vt_handoff="0"

. "$pkgdatadir/grub-mkconfig_lib"

export TEXTDOMAIN=grub
export TEXTDOMAINDIR="${datarootdir}/locale"

CLASS="--class gnu-linux --class gnu --class os"
SUPPORTED_INITS="sysvinit:/lib/sysvinit/init systemd:/lib/systemd/systemd upstart:/sbin/upstart"

if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
  OS=GNU/Linux
else
  case ${GRUB_DISTRIBUTOR} in
    Ubuntu|Kubuntu)
      OS="${GRUB_DISTRIBUTOR}"
      ;;
    *)
      OS="${GRUB_DISTRIBUTOR} GNU/Linux"
      ;;
  esac
  CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1|LC_ALL=C sed 's,[^[:alnum:]_],_,g') ${CLASS}"
fi

# loop-AES arranges things so that /dev/loop/X can be our root device, but
# the initrds that Linux uses don't like that.
case ${GRUB_DEVICE} in
  /dev/loop/*|/dev/loop[0-9])
    GRUB_DEVICE=`losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
    # We can't cope with devices loop-mounted from files here.
    case ${GRUB_DEVICE} in
      /dev/*) ;;
      *) exit 0 ;;
    esac
  ;;
esac

# btrfs may reside on multiple devices. We cannot pass them as value of root= parameter
# and mounting btrfs requires user space scanning, so force UUID in this case.
if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
    || ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \
    || ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then
  LINUX_ROOT_DEVICE=${GRUB_DEVICE}
else
  LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
fi

case x"$GRUB_FS" in
    xbtrfs)
	rootsubvol="`make_system_path_relative_to_its_root /`"
	rootsubvol="${rootsubvol#/}"
	if [ "x${rootsubvol}" != x ]; then
	    GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
	fi;;
    xzfs)
	rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
	bootfs="`make_system_path_relative_to_its_root / | sed -e "s,@$,,"`"
	LINUX_ROOT_DEVICE="ZFS=${rpool}${bootfs}"
	;;
esac

title_correction_code=

if [ -x /lib/recovery-mode/recovery-menu ]; then
    GRUB_CMDLINE_LINUX_RECOVERY=recovery
else
    GRUB_CMDLINE_LINUX_RECOVERY=single
fi
if [ "$ubuntu_recovery" = 1 ]; then
    GRUB_CMDLINE_LINUX_RECOVERY="$GRUB_CMDLINE_LINUX_RECOVERY nomodeset"
fi

if [ "$vt_handoff" = 1 ]; then
  for word in $GRUB_CMDLINE_LINUX_DEFAULT; do
    if [ "$word" = splash ]; then
      GRUB_CMDLINE_LINUX_DEFAULT="$GRUB_CMDLINE_LINUX_DEFAULT \$vt_handoff"
    fi
  done
fi

linux_entry ()
{
  os="$1"
  version="$2"
  type="$3"
  args="$4"

  if [ -z "$boot_device_id" ]; then
      boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
  fi
  if [ x$type != xsimple ] ; then
      case $type in
	  recovery)
	      title="$(gettext_printf "%s, with Linux %s (%s)" "${os}" "${version}" "$(gettext "${GRUB_RECOVERY_TITLE}")")" ;;
	  init-*)
	      title="$(gettext_printf "%s, with Linux %s (%s)" "${os}" "${version}" "${type#init-}")" ;;
	  *)
	      title="$(gettext_printf "%s, with Linux %s" "${os}" "${version}")" ;;
      esac
      if [ x"$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
      echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/"
  else
      echo "menuentry '$(echo "$os" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/"
  fi      
  if [ "$quick_boot" = 1 ]; then
      echo "	recordfail" | sed "s/^/$submenu_indentation/"
  fi
  if [ x$type != xrecovery ] ; then
      save_default_entry | grub_add_tab
  fi

  # Use ELILO's generic "efifb" when it's known to be available.
  # FIXME: We need an interface to select vesafb in case efifb can't be used.
  if [ "x$GRUB_GFXPAYLOAD_LINUX" = x ]; then
      echo "	load_video" | sed "s/^/$submenu_indentation/"
  else
      if [ "x$GRUB_GFXPAYLOAD_LINUX" != xtext ]; then
	  echo "	load_video" | sed "s/^/$submenu_indentation/"
      fi
  fi
  if ([ "$ubuntu_recovery" = 0 ] || [ x$type != xrecovery ]) && \
     ([ "x$GRUB_GFXPAYLOAD_LINUX" != x ] || [ "$gfxpayload_dynamic" = 1 ]); then
      echo "	gfxmode \$linux_gfx_mode" | sed "s/^/$submenu_indentation/"
  fi

  echo "	insmod gzio" | sed "s/^/$submenu_indentation/"
  echo "	if [ x\$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi" | sed "s/^/$submenu_indentation/"

  if [ x$dirname = x/ ]; then
    if [ -z "${prepare_root_cache}" ]; then
      prepare_root_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE} | grub_add_tab)"
    fi
    printf '%s\n' "${prepare_root_cache}" | sed "s/^/$submenu_indentation/"
  else
    if [ -z "${prepare_boot_cache}" ]; then
      prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | grub_add_tab)"
    fi
    printf '%s\n' "${prepare_boot_cache}" | sed "s/^/$submenu_indentation/"
  fi
  if [ x"$quiet_boot" = x0 ] || [ x"$type" != xsimple ]; then
    message="$(gettext_printf "Loading Linux %s ..." ${version})"
    sed "s/^/$submenu_indentation/" << EOF
	echo	'$(echo "$message" | grub_quote)'
EOF
  fi
  if test -d /sys/firmware/efi && test -e "${linux}.efi.signed"; then
    sed "s/^/$submenu_indentation/" << EOF
	linux	${rel_dirname}/${basename}.efi.signed root=${linux_root_device_thisversion} ro ${args}
EOF
  else
    sed "s/^/$submenu_indentation/" << EOF
	linux	${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro ${args}
EOF
  fi
  if test -n "${initrd}" ; then
    # TRANSLATORS: ramdisk isn't identifier. Should be translated.
    if [ x"$quiet_boot" = x0 ] || [ x"$type" != xsimple ]; then
      message="$(gettext_printf "Loading initial ramdisk ...")"
      sed "s/^/$submenu_indentation/" << EOF
	echo	'$(echo "$message" | grub_quote)'
EOF
    fi
    sed "s/^/$submenu_indentation/" << EOF
	initrd	${rel_dirname}/${initrd}
EOF
  fi
  sed "s/^/$submenu_indentation/" << EOF
}
EOF
}

machine=`uname -m`
case "x$machine" in
    xi?86 | xx86_64)
	list=
	for i in /boot/vmlinuz-* /vmlinuz-* /boot/kernel-* ; do
	    if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi
	done ;;
    *) 
	list=
	for i in /boot/vmlinuz-* /boot/vmlinux-* /vmlinuz-* /vmlinux-* /boot/kernel-* ; do
                  if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi
	done ;;
esac

case "$machine" in
    i?86) GENKERNEL_ARCH="x86" ;;
    mips|mips64) GENKERNEL_ARCH="mips" ;;
    mipsel|mips64el) GENKERNEL_ARCH="mipsel" ;;
    arm*) GENKERNEL_ARCH="arm" ;;
    *) GENKERNEL_ARCH="$machine" ;;
esac

prepare_boot_cache=
prepare_root_cache=
boot_device_id=
title_correction_code=

cat << 'EOF'
function gfxmode {
	set gfxpayload="${1}"
EOF
if [ "$vt_handoff" = 1 ]; then
  cat << 'EOF'
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
EOF
fi
cat << EOF
}
EOF

# Use ELILO's generic "efifb" when it's known to be available.
# FIXME: We need an interface to select vesafb in case efifb can't be used.
if [ "x$GRUB_GFXPAYLOAD_LINUX" != x ] || [ "$gfxpayload_dynamic" = 0 ]; then
  echo "set linux_gfx_mode=$GRUB_GFXPAYLOAD_LINUX"
else
  cat << EOF
if [ "\${recordfail}" != 1 ]; then
  if [ -e \${prefix}/gfxblacklist.txt ]; then
    if hwmatch \${prefix}/gfxblacklist.txt 3; then
      if [ \${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
EOF
fi
cat << EOF
export linux_gfx_mode
EOF

# Extra indentation to add to menu entries in a submenu. We're not in a submenu
# yet, so it's empty. In a submenu it will be equal to '\t' (one tab).
submenu_indentation=""

is_top_level=true
while [ "x$list" != "x" ] ; do
  linux=`version_find_latest $list`
  case $linux in
    *.efi.signed)
      # We handle these in linux_entry.
      list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
      continue
      ;;
  esac
  gettext_printf "Found linux image: %s\n" "$linux" >&2
  basename=`basename $linux`
  dirname=`dirname $linux`
  rel_dirname=`make_system_path_relative_to_its_root $dirname`
  version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
  alt_version=`echo $version | sed -e "s,\.old$,,g"`
  linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"

  initrd=
  for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
	   "initrd-${version}" "initramfs-${version}.img" \
	   "initrd.img-${alt_version}" "initrd-${alt_version}.img" \
	   "initrd-${alt_version}" "initramfs-${alt_version}.img" \
	   "initramfs-genkernel-${version}" \
	   "initramfs-genkernel-${alt_version}" \
	   "initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
	   "initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}"; do
    if test -e "${dirname}/${i}" ; then
      initrd="$i"
      break
    fi
  done

  config=
  for i in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do
    if test -e "${i}" ; then
      config="${i}"
      break
    fi
  done

  initramfs=
  if test -n "${config}" ; then
      initramfs=`grep CONFIG_INITRAMFS_SOURCE= "${config}" | cut -f2 -d= | tr -d \"`
  fi

  if test -n "${initrd}" ; then
    gettext_printf "Found initrd image: %s\n" "${dirname}/${initrd}" >&2
  elif test -z "${initramfs}" ; then
    # "UUID=" and "ZFS=" magic is parsed by initrd or initramfs.  Since there's
    # no initrd or builtin initramfs, it can't work here.
    linux_root_device_thisversion=${GRUB_DEVICE}
  fi
  
# ADD BL TTY ENTRY HERE  
  linux_entry "BunsenLabs TTY" "${version}" simple \
    "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT} systemd.unit=multi-user.target"
  break
  
  if [ "x$is_top_level" = xtrue ] && [ "x${GRUB_DISABLE_SUBMENU}" != xy ]; then
    linux_entry "${OS}" "${version}" simple \
    "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT} "

    submenu_indentation="$grub_tab"
    
    if [ -z "$boot_device_id" ]; then
	boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
    fi
    # TRANSLATORS: %s is replaced with an OS name
    echo "submenu '$(gettext_printf "Advanced options for %s" "${OS}" | grub_quote)' \$menuentry_id_option 'gnulinux-advanced-$boot_device_id' {"
    is_top_level=false
  fi

  linux_entry "${OS}" "${version}" advanced \
              "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
  for supported_init in ${SUPPORTED_INITS}; do
    init_path="${supported_init#*:}"
    if [ -x "${init_path}" ] && [ "$(readlink -f /sbin/init)" != "${init_path}" ]; then
      linux_entry "${OS}" "${version}" "init-${supported_init%%:*}" \
		  "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT} init=${init_path}"
    fi
  done
  if [ "x${GRUB_DISABLE_RECOVERY}" != "xtrue" ]; then
    linux_entry "${OS}" "${version}" recovery \
                "${GRUB_CMDLINE_LINUX_RECOVERY} ${GRUB_CMDLINE_LINUX}"
  fi

  list=`echo $list | tr ' ' '\n' | fgrep -vx "$linux" | tr '\n' ' '`
done

# If at least one kernel was found, then we need to
# add a closing '}' for the submenu command.
if [ x"$is_top_level" != xtrue ]; then
  echo '}'
fi

echo "$title_correction_code"

Make sure it's executable, and then run 'sudo update-grub'.

In my test VM it successfully generated a "BunsenLabs TTY" entry in /boot/grub/grub.cfg which got me a CLI login on reboot. The entry comes after the "advanced" submenu, but I don't think that can be helped.

I would be very interested if it worked on other peoples' machines too. Being the same code that grub uses, it should cope with a variety of machine architectures and kernel versions. It takes the top entry to make a new one with 'systemd.unit=multi-user.target' appended.

If it looks OK I'll remove the extra code which is not used, and check it's still working...

...elevator in the Brain Hotel, broken down but just as well...
( a boring Japan blog (currently paused), now on Bluesky, there's also some GitStuff )

Introduction to the Bunsenlabs Boron Desktop

Offline

#4 2018-01-30 09:34:47

Head_on_a_Stick
Member
From: London
Registered: 2015-09-29
Posts: 9,067
Website

Re: CLI boot option in grub menu

^ Wow, nice work John cool

johnraff wrote:

I would be very interested if it worked on other peoples' machines too

15_bunsen works for my BusenLabs QEMU system:

2018-01-30-085403_1280x800_scrot.th.png

My BL laptop is broken but I added a 15_bunsen (with your three lines) to my Alpine Linux system and ran `grub-mkconfig` to get this:

menuentry 'Alpine TTY' --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-d60517f5-15e3-46ef-befb-743bb61b6024' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_msdos
	insmod xfs
	set root='hd0,msdos2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  d60517f5-15e3-46ef-befb-743bb61b6024
	else
	  search --no-floppy --fs-uuid --set=root d60517f5-15e3-46ef-befb-743bb61b6024
	fi
	echo	'Loading Linux vanilla ...'
	linux	/boot/vmlinuz-vanilla root=/dev/sda2 ro  modules=sd-mod,usb-storage,xfs nomodeset quiet rootfstype=xfs  systemd.multi-user.target
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initramfs-vanilla
}

So the script has found my GNU/Linux partition on /dev/sda2, identified the kernel and added the parameter.

Looks good to me smile

Para todos todo, para nosotros nada

Offline

#5 2018-01-31 07:04:31

johnraff
nullglob
From: Nagoya, Japan
Registered: 2015-09-09
Posts: 12,558
Website

Re: CLI boot option in grub menu

Slightly slimmed down - removed code that seemed to be duplicating what had already been done in 10_linux, or would not be invoked for a single entry.

Also added config variables at the top, so it can be used as a generic "custom arguments" menu entry, using the default kernel. I left out 'quiet', thinking that would be appropriate for a TTY boot, but it can easily be added back.

I don't think it will generate any entry for a kernel named *.efi.signed though. In fact I don't see, looking at the code in /etc/grub.d/10_linux (~line 283), how grub generates such entries at all... hmm 

#! /bin/sh
set -e

# grub-mkconfig helper script.
# Copyright (C) 2006,2007,2008,2009,2010  Free Software Foundation, Inc.
# Copyright: 2018 John Crawley <john@bunsenlabs.org>
#
# 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/>.

# This is a slightly edited copy of 10_linux,
# outputting the default menu entry only,
# with customized command arguments and title.

# custom entry title will be: "${GRUB_DISTRIBUTOR} ${CUSTOM_TITLE}"
CUSTOM_TITLE='TTY'

# custom boot command arguments, appended to ${GRUB_CMDLINE_LINUX}
# NB 'quiet' has been omitted - add it if you want.
CUSTOM_ARGS='systemd.unit=multi-user.target'

##############################

prefix="/usr"
exec_prefix="/usr"
datarootdir="/usr/share"
ubuntu_recovery="0"
quiet_boot="0"
quick_boot="0"
gfxpayload_dynamic="0"
vt_handoff="0"

. "$pkgdatadir/grub-mkconfig_lib"

CLASS="--class gnu-linux --class gnu --class os"

if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
  OS=GNU/Linux
else
  case ${GRUB_DISTRIBUTOR} in
    Ubuntu|Kubuntu)
      OS="${GRUB_DISTRIBUTOR}"
      ;;
    *)
      OS="${GRUB_DISTRIBUTOR} GNU/Linux"
      ;;
  esac
  CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1|LC_ALL=C sed 's,[^[:alnum:]_],_,g') ${CLASS}"
fi

# loop-AES arranges things so that /dev/loop/X can be our root device, but
# the initrds that Linux uses don't like that.
case ${GRUB_DEVICE} in
  /dev/loop/*|/dev/loop[0-9])
    GRUB_DEVICE=`losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
    # We can't cope with devices loop-mounted from files here.
    case ${GRUB_DEVICE} in
      /dev/*) ;;
      *) exit 0 ;;
    esac
  ;;
esac

# btrfs may reside on multiple devices. We cannot pass them as value of root= parameter
# and mounting btrfs requires user space scanning, so force UUID in this case.
if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
    || ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \
    || ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then
  LINUX_ROOT_DEVICE=${GRUB_DEVICE}
else
  LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
fi

case x"$GRUB_FS" in
    xbtrfs)
  rootsubvol="`make_system_path_relative_to_its_root /`"
  rootsubvol="${rootsubvol#/}"
  if [ "x${rootsubvol}" != x ]; then
      GRUB_CMDLINE_LINUX="rootflags=subvol=${rootsubvol} ${GRUB_CMDLINE_LINUX}"
  fi;;
    xzfs)
  rpool=`${grub_probe} --device ${GRUB_DEVICE} --target=fs_label 2>/dev/null || true`
  bootfs="`make_system_path_relative_to_its_root / | sed -e "s,@$,,"`"
  LINUX_ROOT_DEVICE="ZFS=${rpool}${bootfs}"
  ;;
esac

title_correction_code=

## This function unchanged from 10_linux ##
linux_entry ()
{
  os="$1"
  version="$2"
  type="$3"
  args="$4"

  if [ -z "$boot_device_id" ]; then
      boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")"
  fi
  if [ x$type != xsimple ] ; then
      case $type in
    recovery)
        title="$(gettext_printf "%s, with Linux %s (%s)" "${os}" "${version}" "$(gettext "${GRUB_RECOVERY_TITLE}")")" ;;
    init-*)
        title="$(gettext_printf "%s, with Linux %s (%s)" "${os}" "${version}" "${type#init-}")" ;;
    *)
        title="$(gettext_printf "%s, with Linux %s" "${os}" "${version}")" ;;
      esac
      if [ x"$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
      echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/"
  else
      echo "menuentry '$(echo "$os" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/"
  fi
  if [ "$quick_boot" = 1 ]; then
      echo "  recordfail" | sed "s/^/$submenu_indentation/"
  fi
  if [ x$type != xrecovery ] ; then
      save_default_entry | grub_add_tab
  fi

  # Use ELILO's generic "efifb" when it's known to be available.
  # FIXME: We need an interface to select vesafb in case efifb can't be used.
  if [ "x$GRUB_GFXPAYLOAD_LINUX" = x ]; then
      echo "  load_video" | sed "s/^/$submenu_indentation/"
  else
      if [ "x$GRUB_GFXPAYLOAD_LINUX" != xtext ]; then
    echo "  load_video" | sed "s/^/$submenu_indentation/"
      fi
  fi
  if ([ "$ubuntu_recovery" = 0 ] || [ x$type != xrecovery ]) && \
     ([ "x$GRUB_GFXPAYLOAD_LINUX" != x ] || [ "$gfxpayload_dynamic" = 1 ]); then
      echo "  gfxmode \$linux_gfx_mode" | sed "s/^/$submenu_indentation/"
  fi

  echo "  insmod gzio" | sed "s/^/$submenu_indentation/"
  echo "  if [ x\$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi" | sed "s/^/$submenu_indentation/"

  if [ x$dirname = x/ ]; then
    if [ -z "${prepare_root_cache}" ]; then
      prepare_root_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE} | grub_add_tab)"
    fi
    printf '%s\n' "${prepare_root_cache}" | sed "s/^/$submenu_indentation/"
  else
    if [ -z "${prepare_boot_cache}" ]; then
      prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | grub_add_tab)"
    fi
    printf '%s\n' "${prepare_boot_cache}" | sed "s/^/$submenu_indentation/"
  fi
  if [ x"$quiet_boot" = x0 ] || [ x"$type" != xsimple ]; then
    message="$(gettext_printf "Loading Linux %s ..." ${version})"
    sed "s/^/$submenu_indentation/" << EOF
  echo  '$(echo "$message" | grub_quote)'
EOF
  fi
  if test -d /sys/firmware/efi && test -e "${linux}.efi.signed"; then
    sed "s/^/$submenu_indentation/" << EOF
  linux ${rel_dirname}/${basename}.efi.signed root=${linux_root_device_thisversion} ro ${args}
EOF
  else
    sed "s/^/$submenu_indentation/" << EOF
  linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro ${args}
EOF
  fi
  if test -n "${initrd}" ; then
    # TRANSLATORS: ramdisk isn't identifier. Should be translated.
    if [ x"$quiet_boot" = x0 ] || [ x"$type" != xsimple ]; then
      message="$(gettext_printf "Loading initial ramdisk ...")"
      sed "s/^/$submenu_indentation/" << EOF
  echo  '$(echo "$message" | grub_quote)'
EOF
    fi
    sed "s/^/$submenu_indentation/" << EOF
  initrd  ${rel_dirname}/${initrd}
EOF
  fi
  sed "s/^/$submenu_indentation/" << EOF
}
EOF
}
## end function linux_entry ##

machine=`uname -m`
case "x$machine" in
    xi?86 | xx86_64)
  list=
  for i in /boot/vmlinuz-* /vmlinuz-* /boot/kernel-* ; do
      if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi
  done ;;
    *)
  list=
  for i in /boot/vmlinuz-* /boot/vmlinux-* /vmlinuz-* /vmlinux-* /boot/kernel-* ; do
                  if grub_file_is_not_garbage "$i" ; then list="$list $i" ; fi
  done ;;
esac

case "$machine" in
    i?86) GENKERNEL_ARCH="x86" ;;
    mips|mips64) GENKERNEL_ARCH="mips" ;;
    mipsel|mips64el) GENKERNEL_ARCH="mipsel" ;;
    arm*) GENKERNEL_ARCH="arm" ;;
    *) GENKERNEL_ARCH="$machine" ;;
esac

prepare_boot_cache=
prepare_root_cache=
boot_device_id=
title_correction_code=


while [ "x$list" != "x" ] ; do
  linux=`version_find_latest $list`
  case $linux in
    *.efi.signed)
      # We handle these in linux_entry.
      list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
      continue
      ;;
  esac
  gettext_printf "Generating custom entry for: %s\n" "$linux" >&2
  basename=`basename $linux`
  dirname=`dirname $linux`
  rel_dirname=`make_system_path_relative_to_its_root $dirname`
  version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
  alt_version=`echo $version | sed -e "s,\.old$,,g"`
  linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"

  initrd=
  for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
     "initrd-${version}" "initramfs-${version}.img" \
     "initrd.img-${alt_version}" "initrd-${alt_version}.img" \
     "initrd-${alt_version}" "initramfs-${alt_version}.img" \
     "initramfs-genkernel-${version}" \
     "initramfs-genkernel-${alt_version}" \
     "initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
     "initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}"; do
    if test -e "${dirname}/${i}" ; then
      initrd="$i"
      break
    fi
  done

  config=
  for i in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do
    if test -e "${i}" ; then
      config="${i}"
      break
    fi
  done

  initramfs=
  if test -n "${config}" ; then
      initramfs=`grep CONFIG_INITRAMFS_SOURCE= "${config}" | cut -f2 -d= | tr -d \"`
  fi

  if test -n "${initrd}" ; then
    gettext_printf "initrd image OK: %s\n" "${dirname}/${initrd}" >&2
  elif test -z "${initramfs}" ; then
    # "UUID=" and "ZFS=" magic is parsed by initrd or initramfs.  Since there's
    # no initrd or builtin initramfs, it can't work here.
    linux_root_device_thisversion=${GRUB_DEVICE}
  fi

## CUSTOM ENTRY ADDED HERE ##
  linux_entry "${GRUB_DISTRIBUTOR} ${CUSTOM_TITLE}" "${version}" simple \
    "${GRUB_CMDLINE_LINUX} ${CUSTOM_ARGS}"
  break

done

echo "$title_correction_code"

Last edited by johnraff (2018-01-31 08:12:19)

...elevator in the Brain Hotel, broken down but just as well...
( a boring Japan blog (currently paused), now on Bluesky, there's also some GitStuff )

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#6 2018-01-31 07:11:38

Head_on_a_Stick
Member
From: London
Registered: 2015-09-29
Posts: 9,067
Website

Re: CLI boot option in grub menu

johnraff wrote:

I don't think it will generate any entry for a kernel named *.efi.signed though

That's OK, Secure Boot is not supported in this release of Debian stable.

Para todos todo, para nosotros nada

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#7 2018-02-26 18:53:29

or1o9
Member
Registered: 2017-11-15
Posts: 246

Re: CLI boot option in grub menu

A little bit late for feedback on this, but set the tty login as default on  my Helium-dev vbx install. It worked flawlessly. Excellent! Thank you! smile

Also ditto for my hd install.

Last edited by or1o9 (2018-02-26 20:18:28)

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#8 2018-02-26 22:32:49

Head_on_a_Stick
Member
From: London
Registered: 2015-09-29
Posts: 9,067
Website

Re: CLI boot option in grub menu

orionH wrote:

set the tty login as default on  my Helium-dev vbx install

That is a great idea — I use `systemctl set-default multi-user.target` to force a console login but your method keeps LightDM as an option cool

Para todos todo, para nosotros nada

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#9 2018-03-24 16:20:52

Head_on_a_Stick
Member
From: London
Registered: 2015-09-29
Posts: 9,067
Website

Re: CLI boot option in grub menu

johnraff wrote:

I left out 'quiet', thinking that would be appropriate for a TTY boot, but it can easily be added back

Would it be possible to add quiet back in to the stock TTY boot entry?

The messages slow down the startup process and I have found that they can spam the login prompt:

2018-03-24-150314_1280x800_scrot.th.png

^ This is a bit annoying (IMO).

Last edited by Head_on_a_Stick (2018-03-24 16:22:11)

Para todos todo, para nosotros nada

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#10 2018-03-25 07:31:03

johnraff
nullglob
From: Nagoya, Japan
Registered: 2015-09-09
Posts: 12,558
Website

Re: CLI boot option in grub menu

^Yes that's not pretty. It shouldn't really happen (doesn't for me) but anyway, happy to put 'quiet' back in the TTY boot.

EDIT: though, it's a balance between the needs of:
1) users who are booting to a tty to fix something
vs
2) those who want to startx from the CLI

I would imagine that 1) people would prefer to see all the boot messages.

I have no strong personal preference though.

Last edited by johnraff (2018-03-25 07:36:53)

...elevator in the Brain Hotel, broken down but just as well...
( a boring Japan blog (currently paused), now on Bluesky, there's also some GitStuff )

Introduction to the Bunsenlabs Boron Desktop

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#11 2018-03-25 13:53:18

Head_on_a_Stick
Member
From: London
Registered: 2015-09-29
Posts: 9,067
Website

Re: CLI boot option in grub menu

johnraff wrote:

I would imagine that 1) people would prefer to see all the boot messages

They are available for viewing with `journalctl -b` (and go by far too quick to actually read in my system) and and if there are any errors in the boot process then the quiet parameter is ignored and all messages are displayed.

Last edited by Head_on_a_Stick (2018-03-25 13:53:56)

Para todos todo, para nosotros nada

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#12 2018-03-26 06:10:52

johnraff
nullglob
From: Nagoya, Japan
Registered: 2015-09-09
Posts: 12,558
Website

Re: CLI boot option in grub menu

OK quiet it is. smile

EDIT: committed to GitHub but let's hold the package upgrade in case there are any more last-minute tweaks before Helium.

Last edited by johnraff (2018-03-26 06:14:58)

...elevator in the Brain Hotel, broken down but just as well...
( a boring Japan blog (currently paused), now on Bluesky, there's also some GitStuff )

Introduction to the Bunsenlabs Boron Desktop

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