Dear Debian maintainers, On Fri, 31 Jul 2020 22:39:22 +0200 cacat...@tuxfamily.org wrote: > Package: grub-pc > Version: 2.02+dfsg1-20+deb10u2 > > Dear Maintainers, > > Don't know if it's useful but contributing infos I collected on this, > since I ran into the same error message on a Lenovo Thinkpad T510 > running Debian Stable.
The same here. You should be more careful when upgrading or fixing a security issue in the boot loader. It currently breaks a Debian Buster system, which is production. The suggested grub reinstall method did _not_ work for me. I booted from a USB stick into rescue mode and had to downgrade grub-common package (I don’t have grub2 on my system) and reinstall all dependent packages again. After downgrading grub-common/grub2-common to version 2.02+dfsg1-20, my system boots and works fine. Downgrade grub-common/grub2-common: from: 2.02+dfsg1-20+deb10u2 to:2.02+dfsg1-20 and it did work after reboot. See my APT history log for details. “ Start-Date: 2020-07-31 22:52:35 Commandline: apt install grub-common=2.02+dfsg1-20 Downgrade: grub-common:amd64 (2.02+dfsg1-20+deb10u2, 2.02+dfsg1-20) Remove: grub2-common:amd64 (2.02+dfsg1-20+deb10u2), grub-efi-amd64-bin:amd64 (2.02+dfsg1-20+deb10u2), grub-efi-amd64:amd64 (2.02+dfsg1-20+deb10u2), shim-signed:amd64 (1.33+15+1533136590.3beb971-7), grub-efi-amd64-signed:amd64 (1+2.02+dfsg1+20+deb10u2) End-Date: 2020-07-31 22:53:28 Start-Date: 2020-07-31 22:55:36 Commandline: apt install grub2-common=2.02+dfsg1-20 Install: grub2-common:amd64 (2.02+dfsg1-20) End-Date: 2020-07-31 22:55:41 Start-Date: 2020-07-31 22:56:39 Commandline: apt install grub-efi-amd64-bin=2.02+dfsg1-20 Install: grub-efi-amd64-bin:amd64 (2.02+dfsg1-20) End-Date: 2020-07-31 22:56:53 Start-Date: 2020-07-31 22:57:09 Commandline: apt install grub-efi-amd64=2.02+dfsg1-20 Install: grub-efi-amd64:amd64 (2.02+dfsg1-20) End-Date: 2020-07-31 22:57:33 Start-Date: 2020-07-31 22:58:43 Commandline: apt install grub-efi-amd64-signed=1+2.02+dfsg1+20 Install: shim-signed:amd64 (1.33+15+1533136590.3beb971-7, automatic), grub-efi-amd64-signed:amd64 (1+2.02+dfsg1+20) End-Date: 2020-07-31 22:58:50 “ My kernel is: 4.19.0-9-amd64 No grub2. grub-common, grub2-common is now at v2.02+dfsg1-20. Debian Buster latest v10.4. Linux package: linux-image-4.19.0-9-amd64-signed v4.19.118-2+deb10u1 I have working UEFI booting system, w/o secure boot and amd64 grub package UEFI signed by Debian. Kind regards, -- Miklós Quartus q...@foresthacker.hu
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