Bug#931896: grub-efi-amd64: symbol `grub_file_filters` not found

[Max Hofer]

Am Dienstag, 30. Juli 2019, 01:21:43 CEST schrieb Jiri Palecek:
> On 29. 07. 19 22:12, Max Hofer wrote:
> >> I was also hit by this bug after upgrading yesterday (it has been few
> >> weeks since I updated the machine). Just like others, I also had to
> >> downgrade the following packages to 2.02 to get it working.
> >> 
> >> 1. grub-common
> >> 2. grub2-common
> >> 3. grub-efi-amd64-bin
> >> 4. grub-efi-amd64
> >> 5. grub-pc-bin
> > 
> > I hit the same problem today. Could you please provide the information,
> > how you downgraded the packages on a non bootable system?
> 
> You gotta find something that boots. Either installation pendrive or CD,
> or live CD or another disc. Then mount your regular disk as in
> somedirectory, mount /proc, /sys, /dev in somedirectory, chroot into
> somedirectory and then it is a simple matter for apt. (You may have to
> edit sources.list)
> 
> I went through it with my qemu images.
> 
> Regards
> 
>      Jiri Palecek
Thx for pointing me in the right direction, I was able to fix my problem.

It seems my system broke because the install_devices was configured to the 
partition and not the device.

$ lsblk --output NAME,TYPE,SIZE,FSTYPE,MOUNTPOINT,PTTYPE,MODEL
NAME   TYPE   SIZE FSTYPE MOUNTPOINT PTTYPE MODEL
sda    disk 232.9G                   dos    Samsung_SSD_840_EVO_250GB
├─sda1 part   333M ext4   /          dos    
├─sda2 part     1K                   dos    
├─sda5 part   8.4G btrfs  /usr       dos    
├─sda6 part   2.8G btrfs  /var       dos    
├─sda7 part  27.7G swap   [SWAP]     dos    
├─sda8 part   380M btrfs  /tmp       dos    
└─sda9 part 193.4G btrfs  /home      dos

# Configuration which broke my system with the upgrade from 2.02 to 2.04
$ sudo debconf-show grub-pc|grep install_devices:
* grub-pc/install_devices: /dev/disk/by-id/ata-
Samsung_SSD_840_EVO_250GB_S1DBNSADC65873B-part1

# Configuration which worked when I upgraded from 2.02 to 2.04
$ sudo debconf-show grub-pc|grep install_devices:
* grub-pc/install_devices: /dev/disk/by-id/ata-
Samsung_SSD_840_EVO_250GB_S1DBNSADC65873B

I vaguely remember that one of the grub upgrades (a long time ago) asked me if 
I would like to change the installation location but as far as I remember I 
never changed it.

Regards
Max