### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}

if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 67ff8427-562c-4c15-a4e7-cef1c0140611
else
search --no-floppy --fs-uuid --set=root 67ff8427-562c-4c15-a4e7-cef1c0140611
fi
font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=ru_RU
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
set timeout=-1
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=5
fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 67ff8427-562c-4c15-a4e7-cef1c0140611
else
search --no-floppy --fs-uuid --set=root 67ff8427-562c-4c15-a4e7-cef1c0140611
fi
insmod png
if background_image /usr/share/images/desktop-base/lines-grub.png; then
set color_normal=white/black
set color_highlight=black/white
else
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
\tset gfxpayload="${1}"
}
set linux_gfx_mode=
export linux_gfx_mode
menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-67ff8427-562c-4c15-a4e7-cef1c0140611' {
\tload_video
\tinsmod gzio
\tif [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
\tinsmod part_gpt
\tinsmod ext2
\tset root='hd0,gpt1'
\tif [ x$feature_platform_search_hint = xy ]; then
\t search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 797825e5-948f-4b5a-8d22-a4806b008ef1
\telse
\t search --no-floppy --fs-uuid --set=root 797825e5-948f-4b5a-8d22-a4806b008ef1
\tfi
\techo\t'Загружается Linux 3.16.0-4-amd64 …'
\tlinux\t/vmlinuz-3.16.0-4-amd64 root=UUID=67ff8427-562c-4c15-a4e7-cef1c0140611 ro quiet
\techo\t'Загружается начальный виртуальный диск …'
\tinitrd\t/initrd.img-3.16.0-4-amd64
}
submenu 'Дополнительные параметры для Debian GNU/Linux' $menuentry_id_option 'gnulinux-advanced-67ff8427-562c-4c15-a4e7-cef1c0140611' {
\tmenuentry 'Debian GNU/Linux, с Linux 3.16.0-4-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-4-amd64-advanced-67ff8427-562c-4c15-a4e7-cef1c0140611' {
\t\tload_video
\t\tinsmod gzio
\t\tif [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
\t\tinsmod part_gpt
\t\tinsmod ext2
\t\tset root='hd0,gpt1'
\t\tif [ x$feature_platform_search_hint = xy ]; then
\t\t search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 797825e5-948f-4b5a-8d22-a4806b008ef1
\t\telse
\t\t search --no-floppy --fs-uuid --set=root 797825e5-948f-4b5a-8d22-a4806b008ef1
\t\tfi
\t\techo\t'Загружается Linux 3.16.0-4-amd64 …'
\t\tlinux\t/vmlinuz-3.16.0-4-amd64 root=UUID=67ff8427-562c-4c15-a4e7-cef1c0140611 ro quiet
\t\techo\t'Загружается начальный виртуальный диск …'
\t\tinitrd\t/initrd.img-3.16.0-4-amd64
\t}
\tmenuentry 'Debian GNU/Linux, with Linux 3.16.0-4-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-4-amd64-recovery-67ff8427-562c-4c15-a4e7-cef1c0140611' {
\t\tload_video
\t\tinsmod gzio
\t\tif [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
\t\tinsmod part_gpt
\t\tinsmod ext2
\t\tset root='hd0,gpt1'
\t\tif [ x$feature_platform_search_hint = xy ]; then
\t\t search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 797825e5-948f-4b5a-8d22-a4806b008ef1
\t\telse
\t\t search --no-floppy --fs-uuid --set=root 797825e5-948f-4b5a-8d22-a4806b008ef1
\t\tfi
\t\techo\t'Загружается Linux 3.16.0-4-amd64 …'
\t\tlinux\t/vmlinuz-3.16.0-4-amd64 root=UUID=67ff8427-562c-4c15-a4e7-cef1c0140611 ro single
\t\techo\t'Загружается начальный виртуальный диск …'
\t\tinitrd\t/initrd.img-3.16.0-4-amd64
\t}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###

### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

вот 30_os-prober, я не знаю каким он был после до команды sudo os-prober.
____________________________________________

found_other_os=

adjust_timeout () {
if [ "$quick_boot" = 1 ] && [ "x${found_other_os}" != "x" ]; then
cat << EOF
set timeout_style=menu
if [ "\${timeout}" = 0 ]; then
set timeout=10
fi
EOF
fi
}

if [ "x${GRUB_DISABLE_OS_PROBER}" = "xtrue" ]; then
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
exit 0
fi

OSPROBED="`os-prober | tr ' ' '^' | paste -s -d ' '`"
if [ -z "${OSPROBED}" ] ; then
# empty os-prober output, nothing doing
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 $onstr" | grub_quote)' --class osx --class darwin --class os$
EOF
save_default_entry | grub_add_tab
prepare_grub_to_access_device ${DEVICE} | grub_add_tab
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