[Bug 1848797] Re: After upgrading to 19.10, boot screen shows: "Error: symbol 'grub_file_filters' not found."

[Mugsy323]

I wish to add this exact same issue (same error, same result) just
struck me after attempting to upgrade to 19.10.

I have downloaded the "boot repair disk" ISO from Sourceforge as
recommended on another Ubuntu forum, but am wondering if I should use it
or the Ubu Live/boot disk?

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Title:
  After upgrading to 19.10, boot screen shows: "Error: symbol
  'grub_file_filters' not found."

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  After upgrading to 19.10 the boot screen shows the following error:

  Error: symbol 'grub_file_filters' not found.
  Entering rescue mode...

  
  I could fix it after i booted Ubuntu 19.10 live and used the chroot repair method as described here  https://wiki.ubuntuusers.de/GRUB_2/Reparatur/#chroot-Methode (german)

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