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Problem with Grub configuration (Windows 10)

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user3686478

I have Windows 10 and Ubuntu installed on one physical SSD disk.

Linux pc 5.11.0-41-generic #45~20.04.1-Ubuntu SMP Wed Nov 10 10:20:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Using a grub-customizer, I tried to change the order of operating systems in the grub menu by moving windows 10 to the top. As a result, my grub menu disappeared. I returned it back, but now with windows 10 is in the list and in the right place, but when I select it, I get an error:

ntldr not found

My configs and system information:

$ fdisk -l

Disk /dev/loop0: 55,45 MiB, 58130432 bytes, 113536 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop1: 4 KiB, 4096 bytes, 8 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop2: 247,93 MiB, 259948544 bytes, 507712 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop3: 65,1 MiB, 68259840 bytes, 133320 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop4: 219 MiB, 229638144 bytes, 448512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop5: 134,4 MiB, 140914688 bytes, 275224 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop6: 65,22 MiB, 68378624 bytes, 133552 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop7: 54,24 MiB, 56872960 bytes, 111080 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/nvme0n1: 238,49 GiB, 256060514304 bytes, 500118192 sectors
Disk model: HFM256GDJTNI-82A0A                      
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: EF748C74-6193-4A60-BB78-CA617F4D7792

Device             Start       End   Sectors   Size Type
/dev/nvme0n1p1      2048    206847    204800   100M EFI System
/dev/nvme0n1p2    206848    239615     32768    16M Microsoft reserved
/dev/nvme0n1p3    239616 285652961 285413346 136,1G Microsoft basic data
/dev/nvme0n1p4 285652992 286719999   1067008   521M Windows recovery environment
/dev/nvme0n1p5 286720000 500117503 213397504 101,8G Linux filesystem


Disk /dev/nvme1n1: 931,53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 980 1TB                     
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 16384 bytes / 131072 bytes
Disklabel type: gpt
Disk identifier: DB0CB571-70DC-45DE-8787-1F00CD8227D3

Device         Start        End    Sectors   Size Type
/dev/nvme1n1p1  2048 1953521663 1953519616 931,5G Microsoft basic data


Disk /dev/sda: 931,53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: ST1000LM049-2GH1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: C7F5C196-19E8-47AC-965D-C27E4F62A8B6

Device     Start        End    Sectors   Size Type
/dev/sda1   2048 1953523711 1953521664 931,5G Microsoft basic data


Disk /dev/loop8: 50,98 MiB, 53432320 bytes, 104360 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop9: 219 MiB, 229638144 bytes, 448512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop10: 32,3 MiB, 33865728 bytes, 66144 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop11: 55,5 MiB, 58183680 bytes, 113640 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop12: 61,85 MiB, 64835584 bytes, 126632 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop13: 164,78 MiB, 172761088 bytes, 337424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop14: 42,18 MiB, 44220416 bytes, 86368 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

$ 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_TIMEOUT_STYLE="menu"
GRUB_TIMEOUT="10"
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"

GRUB_DISABLE_OS_PROBER="true"

$ cat /boot/grub/grub.cfg

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${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 initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$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
}

terminal_input console
terminal_output console
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=10
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux_proxy ###

function gfxmode {
    set gfxpayload="${1}"
    if [ "${1}" = "keep" ]; then
        set vt_handoff=vt.handoff=7
    else
        set vt_handoff=
    fi
}
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
export linux_gfx_mode



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

### BEGIN /etc/grub.d/30_os-prober_proxy ###
### END /etc/grub.d/30_os-prober_proxy ###

### BEGIN /etc/grub.d/40_custom_proxy ###
menuentry "Windows 10" --class windows --class os {
   insmod ntfs
   search --no-floppy --set=root --fs-uuid 4CE8C9A1E8C989A2
   ntldr /bootmgr
}
### END /etc/grub.d/40_custom_proxy ###

### BEGIN /etc/grub.d/41_linux_proxy ###
menuentry "Ubuntu" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-adda5833-f00a-4992-9434-f1f7ccedc28f' {
    recordfail
    load_video
    gfxmode $linux_gfx_mode
    insmod gzio
    if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
    insmod part_gpt
    insmod ext2
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root  adda5833-f00a-4992-9434-f1f7ccedc28f
    else
      search --no-floppy --fs-uuid --set=root adda5833-f00a-4992-9434-f1f7ccedc28f
    fi
    linux   /boot/vmlinuz-5.11.0-41-generic root=UUID=adda5833-f00a-4992-9434-f1f7ccedc28f ro  quiet splash $vt_handoff
    initrd  /boot/initrd.img-5.11.0-41-generic
}
submenu "Advanced options for Ubuntu"{
menuentry "Ubuntu, with Linux 5.11.0-41-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-advanced-adda5833-f00a-4992-9434-f1f7ccedc28f' {
        recordfail
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  adda5833-f00a-4992-9434-f1f7ccedc28f
        else
          search --no-floppy --fs-uuid --set=root adda5833-f00a-4992-9434-f1f7ccedc28f
        fi
        echo    'Loading Linux 5.11.0-41-generic ...'
        linux   /boot/vmlinuz-5.11.0-41-generic root=UUID=adda5833-f00a-4992-9434-f1f7ccedc28f ro  quiet splash $vt_handoff
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-5.11.0-41-generic
}
menuentry "Ubuntu, with Linux 5.11.0-41-generic (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-recovery-adda5833-f00a-4992-9434-f1f7ccedc28f' {
        recordfail
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  adda5833-f00a-4992-9434-f1f7ccedc28f
        else
          search --no-floppy --fs-uuid --set=root adda5833-f00a-4992-9434-f1f7ccedc28f
        fi
        echo    'Loading Linux 5.11.0-41-generic ...'
        linux   /boot/vmlinuz-5.11.0-41-generic root=UUID=adda5833-f00a-4992-9434-f1f7ccedc28f ro recovery nomodeset dis_ucode_ldr 
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-5.11.0-41-generic
}
menuentry "Ubuntu, with Linux 5.11.0-27-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-27-generic-advanced-adda5833-f00a-4992-9434-f1f7ccedc28f' {
        recordfail
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  adda5833-f00a-4992-9434-f1f7ccedc28f
        else
          search --no-floppy --fs-uuid --set=root adda5833-f00a-4992-9434-f1f7ccedc28f
        fi
        echo    'Loading Linux 5.11.0-27-generic ...'
        linux   /boot/vmlinuz-5.11.0-27-generic root=UUID=adda5833-f00a-4992-9434-f1f7ccedc28f ro  quiet splash $vt_handoff
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-5.11.0-27-generic
}
menuentry "Ubuntu, with Linux 5.11.0-27-generic (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-27-generic-recovery-adda5833-f00a-4992-9434-f1f7ccedc28f' {
        recordfail
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  adda5833-f00a-4992-9434-f1f7ccedc28f
        else
          search --no-floppy --fs-uuid --set=root adda5833-f00a-4992-9434-f1f7ccedc28f
        fi
        echo    'Loading Linux 5.11.0-27-generic ...'
        linux   /boot/vmlinuz-5.11.0-27-generic root=UUID=adda5833-f00a-4992-9434-f1f7ccedc28f ro recovery nomodeset dis_ucode_ldr 
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-5.11.0-27-generic
}
menuentry "Ubuntu, with Linux 5.4.0-1058-oracle" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-1058-oracle-advanced-adda5833-f00a-4992-9434-f1f7ccedc28f' {
        recordfail
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  adda5833-f00a-4992-9434-f1f7ccedc28f
        else
          search --no-floppy --fs-uuid --set=root adda5833-f00a-4992-9434-f1f7ccedc28f
        fi
        echo    'Loading Linux 5.4.0-1058-oracle ...'
        linux   /boot/vmlinuz-5.4.0-1058-oracle root=UUID=adda5833-f00a-4992-9434-f1f7ccedc28f ro  quiet splash $vt_handoff
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-5.4.0-1058-oracle
}
menuentry "Ubuntu, with Linux 5.4.0-1058-oracle (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-1058-oracle-recovery-adda5833-f00a-4992-9434-f1f7ccedc28f' {
        recordfail
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  adda5833-f00a-4992-9434-f1f7ccedc28f
        else
          search --no-floppy --fs-uuid --set=root adda5833-f00a-4992-9434-f1f7ccedc28f
        fi
        echo    'Loading Linux 5.4.0-1058-oracle ...'
        linux   /boot/vmlinuz-5.4.0-1058-oracle root=UUID=adda5833-f00a-4992-9434-f1f7ccedc28f ro recovery nomodeset dis_ucode_ldr 
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-5.4.0-1058-oracle
}
}
### END /etc/grub.d/41_linux_proxy ###

### BEGIN /etc/grub.d/42_linux_zfs ###
### END /etc/grub.d/42_linux_zfs ###

### BEGIN /etc/grub.d/43_linux_xen ###

### END /etc/grub.d/43_linux_xen ###

### BEGIN /etc/grub.d/44_memtest86+ ###
### END /etc/grub.d/44_memtest86+ ###

### BEGIN /etc/grub.d/45_os-prober_proxy ###

### END /etc/grub.d/45_os-prober_proxy ###

### BEGIN /etc/grub.d/46_uefi-firmware_proxy ###


### END /etc/grub.d/46_uefi-firmware_proxy ###

### BEGIN /etc/grub.d/47_custom_proxy ###

# 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/47_custom_proxy ###

### BEGIN /etc/grub.d/48_uefi-firmware_proxy ###
menuentry "UEFI Firmware Settings" $menuentry_id_option 'uefi-firmware' {
    fwsetup
}
### END /etc/grub.d/48_uefi-firmware_proxy ###

### BEGIN /etc/grub.d/49_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/49_custom ###

if I understand correctly, the error is on line 142:

ntldr /bootmgr
57
0 + 0
ChanganAuto avatar
us flag
ChanganAuto
Can you still boot Ubuntu? If so the first thing to try is `sudo update-grub`.
1
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