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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848797 Title: After upgrading to 19.10, boot screen shows: "Error: symbol 'grub_file_filters' not found." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1848797/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs