Coud not install grub2 at the end of 16.04.3 setup on the UEFI PC.(ASUS X751B). Also, the system(/) partition was 51200MB, swap was set to 8192MB and user(/home) partition was 942GB.

[Nikita]

I was installing ubuntu 16.04.3 from the 8GB USB pen drive made by rufus on win7 with MBR for UEFI and FAT32. It was 2 times, because on the other times it stopped when downloaded files and didn't do anything. Previously there was ubuntu 13.04 installed from the DVD, but I haven't got any of them now. Possybly, I would install GRUB2 manually and I'd say if it worked for me.

P.S. Sorry for my not-perfect English.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63.4
ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
Uname: Linux 4.10.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CasperVersion: 1.376.2
Date: Sat Feb 24 15:31:58 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash oem-config/enable=true ---
LiveMediaBuild: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
ProcEnviron:
 LANGUAGE=ru_UA.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=ru_UA.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

Your disk is currently partitioned to boot in bios mode, but you booted the installer in EFI mode. A warning message prompted you that this could be a problem and recommended performing a bios mode install instead, but you chose not to. You either need to perform the bios mode install, or partition the disk using GPT and set up an EFI system partition to install in EFI mode. This will be done for you if you choose the "use entire disk" guided install option.