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

[Steve Langasek]

Thank you for the bug report.  Are you sure of the spelling of the
symbol name, 'grub_file_filters'?  There is no symbol by this name
anywhere in the grub source code.  Have you previously done anything to
the bootloader on your system that would have involved installing an
out-of-tree grub module built from source?

** Package changed: grub (Ubuntu) => grub2 (Ubuntu)

** Changed in: grub2 (Ubuntu)
       Status: New => Incomplete

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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:
  Incomplete

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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