install ubuntu. then run boot-repair in terminal to fix this via liveusb then try to reboot system. i fixed this and now i'm able to boot into ubuntu 20.04.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869885 Title: Improve performance of 10_linux_zfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1869885/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs