Install fails with ESP and Ext4 partition

[DonnieD]

Install fails with ESP and Ext4 partition on SSD

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubiquity 2.21.25 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CasperVersion: 1.360
Date: Tue May 5 16:46:40 2015
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Mathieu Trudel-Lapierre (cyphermox)]

This looks like the image you're using the install may be incomplete or damaged:

May 5 13:46:10 ubuntu ubiquity: E: Failed to fetch cdrom://Ubuntu 15.04 _Vivid Vervet_ - Release amd64 (20150422)/pool/main/g/grub2/grub-efi-amd64-bin_2.02~beta2-22ubuntu1_amd64.deb Hash Sum mismatch

Could you try to verify the image you downloaded with md5sum, download it again if it's incomplete, and try again?

[Launchpad Janitor (janitor)]

[Expired for grub-installer (Ubuntu) because there has been no activity for 60 days.]