According to the logs, sda1 is formatted as an ext2 partition; so it's not an ESP since an ESP must be FAT.
It's possible we could improve ubiquity's handling of this case, but if you are skipping ubiquity's support for automatically configuring your partitions correctly, you're somewhat on your own for getting the partitions right. ** Changed in: ubiquity (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1932122 Title: ubuntu installer crashed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1932122/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
