[Bug 1952223] [NEW] Grub reinstall failure ubuntu 20.04 in a system that didn't have an EFI partition

Public bug reported: This is an UBUNTU 20.04. All my partitions were ext4 and the installer complained that I didn't have an EFI partition. I deleted the /boot partition and divided into 100 Mb EFI and 900 Mb /boot. I also tried to have the 1000 Mb /boot to be all EFI. Either way the installer

[Bug 1756767] [NEW] It crashed during installation. Could not install GRUB

Public bug reported: This is a Windows 10 running in one hard drive and Ubuntu being installed in another. I thought I wouldn't even need GRUB, I would just choose which HD to start with. In any event it crashed, I suppose it is because it wouldn't install grub on the Windows HD and didn't want