grub installation at sda1 crashed after about 80% installation process

[Angelo Morsiquillo]

Grub could have probably crashed because I'm using a Solid State Drive formatted using GPT. When I was asked by the Installer to provide another partition for efi, I modified the 1st partition to provide 500 MB and another about 4GB, then I formatted the 500 MB with ext4 assigned to be the efi partition, accordingly GRUB failed so I have to go back to partitioning, and I formatted the 500 MB partition to fat32 and again GRUB failed to install at it, what about if I try not to format it at all. This seemed to be not a problem when I installed Ubuntu in my laptop using BIOS, not efi, and MBR instead of GPT, and SATA instead of SSD.

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: ubiquity 19.04.9
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CasperVersion: 1.405
Date: Sat Jul 20 01:21:29 2019
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)