Looking closer at the 19.04 grub.cfg and the post19.10 grub.cfg.new I see that the 19.04 version of update-grub was using 10_linux instead of 10_linux_zfs to generate the grub.cfg.new.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848856 Title: Upgrade from 19.04 to 19.10 with zfs on root fails with grub syntax error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1848856/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
