Bug#984426: grub suddenly does not boot and ends up with "grub_register_command_lockdown not found"

[Karsten]

Package: grub-pc
Version: 2.02+dfsg1-20+deb10u4
Severity: important

Hello,

there was no system update or an installation. It booted perfect.
I simply switched the PC off and the next time it does not boot any more!
Every entry of the boot menu ends up with the attached screenshot.

To recover the PC i had to boot an Debian 10 installation from SD-Card and select recover of grub.

I have no idea if this is reproducible and the search for such an error is empty.
So i report it here, if someone has the same error.

Cheers
karsten


-- Package-specific info:

*********************** BEGIN /proc/mounts
/dev/sdb1 / ext4 rw,noatime,discard,errors=remount-ro 0 0
/dev/sdb2 /P2 ext4 rw,noatime,discard,errors=remount-ro 0 0
/dev/sda6 /win ext4 rw,relatime 0 0
/dev/sda7 /srv ext4 rw,relatime 0 0
*********************** END /proc/mounts
*********************** BEGIN /proc/mdstat
cat: /proc/mdstat: No such file or directory
*********************** END /proc/mdstat

*********************** BEGIN /dev/disk/by-id
total 0
lrwxrwxrwx 1 root root  9 Mar  3 17:05 ata-Intenso_SSD_Sata_III_AYSAT0816OUT002982 -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-Intenso_SSD_Sata_III_AYSAT0816OUT002982-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-Intenso_SSD_Sata_III_AYSAT0816OUT002982-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-Intenso_SSD_Sata_III_AYSAT0816OUT002982-part3 -> ../../sdb3
lrwxrwxrwx 1 root root  9 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS -> ../../sda
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part7 -> ../../sda7
lrwxrwxrwx 1 root root  9 Mar  3 17:05 usb-Generic_STORAGE_DEVICE-0:0 -> ../../sdc
lrwxrwxrwx 1 root root  9 Mar  3 17:05 wwn-0x5000039ffad1d235 -> ../../sda
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar  3 17:05 ata-TOSHIBA_DT01ACA200_84H86A0GS-part7 -> ../../sda7
lrwxrwxrwx 1 root root  9 Mar  3 17:05 usb-Generic_STORAGE_DEVICE-0:0 -> ../../sdc
lrwxrwxrwx 1 root root  9 Mar  3 17:05 wwn-0x5000039ffad1d235 -> ../../sda
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar  3 17:05 wwn-0x5000039ffad1d235-part7 -> ../../sda7
*********************** END /dev/disk/by-id

*********************** BEGIN /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 10 Mar  3 17:05 18a98996-9302-49b3-b0fe-98149943f531 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar  3 17:05 29aa96ef-ac26-4589-b6ca-a5a7751d7291 -> ../../sda7
lrwxrwxrwx 1 root root 10 Mar  3 17:05 38445c70-a40d-476f-a984-f34c1ffecf95 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar  3 17:05 476654b8-ec87-4cf9-a5e4-d529ce2bf64f -> ../../sdb3
lrwxrwxrwx 1 root root 10 Mar  3 17:05 601f178d-ee5c-4f5c-b4d4-91a115eecccf -> ../../sdb2
lrwxrwxrwx 1 root root 10 Mar  3 17:05 90d0e48d-bee7-4782-8587-75cca275383b -> ../../sdb1
lrwxrwxrwx 1 root root 10 Mar  3 17:05 c7ea0403-a77c-4fde-8d52-91e68e79ca90 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar  3 17:05 cdca521c-52d8-4bed-874c-002473fa2bbb -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar  3 17:05 f2fdfc18-3d1c-4857-a6d0-f7ec168f8c77 -> ../../sda2
*********************** END /dev/disk/by-uuid

-- System Information:
Debian Release: 10.8
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'proposed-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-13-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages grub-pc depends on:
ii  debconf [debconf-2.0]  1.5.71
ii  grub-common            2.02+dfsg1-20+deb10u4
ii  grub-pc-bin            2.02+dfsg1-20+deb10u4
ii  grub2-common           2.02+dfsg1-20+deb10u4
ii  ucf                    3.0038+nmu1

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