package grub-efi-amd64 found 984760 2.02+dfsg1-20+deb10u4 thanks Hello,
I also had this issue when upgrading from stretch to buster. For me the BIOS allowed be to select the EFI image to boot, so I was able to boot into the system that way, then the fix was to: 1) run again update-grub2 and 2) dpkg-reconfigure -plow grub-efi-amd64 After this the old FreeDOS images (HP diagnostics and FreeDOS) I have were no longer booting via grub, but I kept them just in case and I still can boot them via direct EFI image selection from BIOS. Some info on my system: eddy@aptonia:~ $ ll /dev/disk/by-id/ total 0 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-name-nmve-home -> ../../dm-1 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-name-nmve-lvcrypt -> ../../dm-3 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-name-nmve-root -> ../../dm-0 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-name-nmve-swap -> ../../dm-2 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-uuid-LVM-dszzt4JF4qOrlcZdVIM8pF8M4cwQBR3TCeJFI4DcmZKcD7dPi6cIdHpueQNgBHPY -> ../../dm-3 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-uuid-LVM-dszzt4JF4qOrlcZdVIM8pF8M4cwQBR3TgemRtgdFDbSpUbPwRC2XuZlz0qd2TAe6 -> ../../dm-1 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-uuid-LVM-dszzt4JF4qOrlcZdVIM8pF8M4cwQBR3Thu3VxxfPFVJ2y1xVoBWopwxAdqh3RMNv -> ../../dm-2 lrwxrwxrwx 1 root root 10 sep 2 14:44 dm-uuid-LVM-dszzt4JF4qOrlcZdVIM8pF8M4cwQBR3TLNIBeUak8X026nSToUE5QcrOpTfiuJfM -> ../../dm-0 lrwxrwxrwx 1 root root 15 sep 2 14:44 lvm-pv-uuid-ZkjWrn-o4q3-wkB8-kvLh-k0L1-jRsM-9Wj11m -> ../../nvme0n1p5 lrwxrwxrwx 1 root root 13 sep 2 14:44 nvme-eui.ace42e008509e89f -> ../../nvme0n1 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-eui.ace42e008509e89f-part1 -> ../../nvme0n1p1 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-eui.ace42e008509e89f-part2 -> ../../nvme0n1p2 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-eui.ace42e008509e89f-part3 -> ../../nvme0n1p3 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-eui.ace42e008509e89f-part5 -> ../../nvme0n1p5 lrwxrwxrwx 1 root root 13 sep 2 14:44 nvme-SK_hynix_BC501_HFM256GDJTNG-8310A_NJ8CN75131210CU3L -> ../../nvme0n1 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-SK_hynix_BC501_HFM256GDJTNG-8310A_NJ8CN75131210CU3L-part1 -> ../../nvme0n1p1 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-SK_hynix_BC501_HFM256GDJTNG-8310A_NJ8CN75131210CU3L-part2 -> ../../nvme0n1p2 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-SK_hynix_BC501_HFM256GDJTNG-8310A_NJ8CN75131210CU3L-part3 -> ../../nvme0n1p3 lrwxrwxrwx 1 root root 15 sep 2 14:44 nvme-SK_hynix_BC501_HFM256GDJTNG-8310A_NJ8CN75131210CU3L-part5 -> ../../nvme0n1p5 eddy@aptonia:~ $ ll /dev/disk/by-uuid/ total 0 lrwxrwxrwx 1 root root 10 sep 2 14:44 2615ddb7-eab6-428c-9291-c3245b41c1f3 -> ../../dm-2 lrwxrwxrwx 1 root root 15 sep 2 14:44 2C53-59FF -> ../../nvme0n1p2 lrwxrwxrwx 1 root root 10 sep 2 14:44 53ff31db-a553-42be-85ab-720ffcb070a7 -> ../../dm-0 lrwxrwxrwx 1 root root 10 sep 2 14:44 61f9b8c2-bc4d-46e4-8a2c-b1e443a54f48 -> ../../dm-3 lrwxrwxrwx 1 root root 15 sep 2 14:44 6A53-125B -> ../../nvme0n1p1 lrwxrwxrwx 1 root root 10 sep 2 14:44 714a3bfa-0c2e-4bb1-a800-407ed7bf0556 -> ../../dm-1 eddy@aptonia:~ $ cat /proc/mdstat cat: /proc/mdstat: No such file or directory eddy@aptonia:~ $ dpkg -l | grep grub-efi-amd64 ii grub-efi-amd64 2.02+dfsg1-20+deb10u4 amd64 GRand Unified Bootloader, version 2 (EFI-AMD64 version) ii grub-efi-amd64-bin 2.02+dfsg1-20+deb10u4 amd64 GRand Unified Bootloader, version 2 (EFI-AMD64 modules) ii grub-efi-amd64-signed 1+2.02+dfsg1+20+deb10u4 amd64 GRand Unified Bootloader, version 2 (amd64 UEFI signed by Debian) eddy@aptonia:~ $ 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 $prefix/grubenv ]; then set have_grubenv=true load_env fi if [ "${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_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 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=ro_RO insmod gettext fi terminal_output gfxterm if [ "${recordfail}" = 1 ] ; then set timeout=30 else if [ x$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_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi insmod png if background_image /usr/share/desktop-base/futureprototype-theme/grub/grub-16x9.png; then set color_normal=white/black set color_highlight=black/white else set menu_color_normal=cyan/blue set menu_color_highlight=white/blue fi ### END /etc/grub.d/05_debian_theme ### ### BEGIN /etc/grub.d/10_linux ### function gfxmode { set gfxpayload="${1}" } set linux_gfx_mode= export linux_gfx_mode menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-53ff31db-a553-42be-85ab-720ffcb070a7' { load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi echo 'Loading Linux 5.10.0-0.bpo.8-amd64 ...' linux /boot/vmlinuz-5.10.0-0.bpo.8-amd64 root=/dev/mapper/nmve-root ro quiet echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-5.10.0-0.bpo.8-amd64 } submenu 'Advanced options for Debian GNU/Linux' $menuentry_id_option 'gnulinux-advanced-53ff31db-a553-42be-85ab-720ffcb070a7' { menuentry 'Debian GNU/Linux, with Linux 5.10.0-0.bpo.8-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-0.bpo.8-amd64-advanced-53ff31db-a553-42be-85ab-720ffcb070a7' { load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi echo 'Loading Linux 5.10.0-0.bpo.8-amd64 ...' linux /boot/vmlinuz-5.10.0-0.bpo.8-amd64 root=/dev/mapper/nmve-root ro quiet echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-5.10.0-0.bpo.8-amd64 } menuentry 'Debian GNU/Linux, with Linux 5.10.0-0.bpo.8-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-0.bpo.8-amd64-recovery-53ff31db-a553-42be-85ab-720ffcb070a7' { load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi echo 'Loading Linux 5.10.0-0.bpo.8-amd64 ...' linux /boot/vmlinuz-5.10.0-0.bpo.8-amd64 root=/dev/mapper/nmve-root ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-5.10.0-0.bpo.8-amd64 } menuentry 'Debian GNU/Linux, with Linux 4.19.0-17-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.19.0-17-amd64-advanced-53ff31db-a553-42be-85ab-720ffcb070a7' { load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi echo 'Loading Linux 4.19.0-17-amd64 ...' linux /boot/vmlinuz-4.19.0-17-amd64 root=/dev/mapper/nmve-root ro quiet echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-4.19.0-17-amd64 } menuentry 'Debian GNU/Linux, with Linux 4.19.0-17-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.19.0-17-amd64-recovery-53ff31db-a553-42be-85ab-720ffcb070a7' { load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi echo 'Loading Linux 4.19.0-17-amd64 ...' linux /boot/vmlinuz-4.19.0-17-amd64 root=/dev/mapper/nmve-root ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-4.19.0-17-amd64 } menuentry 'Debian GNU/Linux, with Linux 4.9.0-16-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.9.0-16-amd64-advanced-53ff31db-a553-42be-85ab-720ffcb070a7' { load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi echo 'Loading Linux 4.9.0-16-amd64 ...' linux /boot/vmlinuz-4.9.0-16-amd64 root=/dev/mapper/nmve-root ro quiet echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-4.9.0-16-amd64 } menuentry 'Debian GNU/Linux, with Linux 4.9.0-16-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.9.0-16-amd64-recovery-53ff31db-a553-42be-85ab-720ffcb070a7' { load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod lvm insmod ext2 set root='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint='lvmid/dszzt4-JF4q-Orlc-ZdVI-M8pF-8M4c-wQBR3T/LNIBeU-ak8X-026n-SToU-E5Qc-rOpT-fiuJfM' 53ff31db-a553-42be-85ab-720ffcb070a7 else search --no-floppy --fs-uuid --set=root 53ff31db-a553-42be-85ab-720ffcb070a7 fi echo 'Loading Linux 4.9.0-16-amd64 ...' linux /boot/vmlinuz-4.9.0-16-amd64 root=/dev/mapper/nmve-root ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-4.9.0-16-amd64 } } ### 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 ### menuentry 'FreeDOS (on /dev/nvme0n1p1)' --class freedos --class os $menuentry_id_option 'osprober-chain-6A53-125B' { insmod part_msdos insmod fat if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root 6A53-125B else search --no-floppy --fs-uuid --set=root 6A53-125B fi parttool ${root} hidden- drivemap -s (hd0) ${root} chainloader +1 } menuentry 'FreeDOS (on /dev/nvme0n1p2)' --class freedos --class os $menuentry_id_option 'osprober-chain-2C53-59FF' { insmod part_msdos insmod fat if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root 2C53-59FF else search --no-floppy --fs-uuid --set=root 2C53-59FF fi parttool ${root} hidden- drivemap -s (hd0) ${root} chainloader +1 } ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/30_uefi-firmware ### menuentry 'System setup' $menuentry_id_option 'uefi-firmware' { fwsetup } ### 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 ###