Please attach the logs from the installer once the installation finishes or crashes. It can be found in /var/log/syslog from the live session.
EFI or not probably should not matter here if the install fails in the first place; especially since you're installing from an SD card booted in legacy mode (so, not EFI, and whether EFI is enabled or not depends on how you answer the prompt to "force EFI installation"). I do remember seeing an issue with the partition number parsing before, so I'll look in up in past commits to see if we might have regressed there. ** Changed in: grub-installer (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/1749228 Title: Installing from sd card fails on some hardware To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1749228/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs