installer crashes on update-grub

[sambolinux]

just installing vivid

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubiquity 2.21.13
ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
Uname: Linux 3.18.0-13-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.16.1-0ubuntu2
Architecture: amd64
CasperVersion: 1.351
Date: Tue Mar 17 14:45:01 2015
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu-mate.seed boot=casper quiet splash --
LiveMediaBuild: Ubuntu-MATE 15.04 "Vivid Vervet" - Alpha amd64 (20150225)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Martin Wimpress  (flexiondotorg)]

Please try the Ubuntu MATE current daily image to confirm this issue is resolved.

  * http://cdimage.ubuntu.com/ubuntu-mate/daily-live/current/

POST THE FOLLOW UP HERE: https://bugs.launchpad.net/ubuntu-mate/+bug/1426905