Same error (grub-install failing) when trying to install Ubuntu Mate onto bare metal. I have no ESP (and have no room to make one), but saw no warning about a missing ESP.
What's worse: the installation failed to boot: it hung while trying to mount something. Rebooting into another distro and examining the /etc/fstab on the Mate partition, it contained an entry for /boot/efi on /dev/sdb3 -- the installation medium! Surely this should never happen: any entries in /etc/fstab that refer to the installation medium should be removed before rebooting, also when any amount of errors occur during installation. After removing the line, I could then boot into Mate. -- 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
