I can confirm that the fix is working as on 20210418 iso (as tested on Ubuntu and Xubuntu).
Notes: 1) We still see 'No EFI system partition found..." pop-up which may confuse users. 2) Letting installer create partition on empty disk creates a GPT partition layout with bios_grub, efi and root, or if we choose install alongside option, installer creates an EFI partition. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1893964 Title: Installation of Ubuntu Groovy with manual partitioning without an EFI System Partition fails on 'grub-install /dev/sda' even on non-UEFI systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1893964/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs