install crash during grub config

[Mickey Lowy]

Trying to install Ubuntu ob partition SDa1 while boot/efi is located on SDc1. It will not prompt for location or search for proper boot partition.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: ubiquity 2.21.37 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.365
Date: Sun Jan 3 16:34:19 2016
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
ProcEnviron:
 LANGUAGE=en_CA.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

According to your logs, sdc1 is a Windows NTFS partition, not an EFI system partition. If it were though, and you want to install the rest of the system to a different drive, then you need to choose manual partitioning and configure it yourself. Also your installation medium contains a mix of trusty, wily, and vivid. You need to format it and start clean when loading a new distro onto it.