Esecuzione di <<grub-install /dev/sda>> non riuscita.
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 i686
ApportVersion: 2.17.2-0ubuntu1
Architecture: i386
CasperVersion: 1.360
Date: Sun Nov 29 00:16:36 2015
InstallCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz root=UUID=35DF-1FDA file=/cdrom/preseed/ubuntu-mate.seed debian-installer/language=it keyboard-configuration/layoutcode=it iso-scan/filename=/ubuntu-mate-15.04-desktop-i386.iso boot=casper noprompt quiet splash --
LiveMediaBuild: Ubuntu-MATE 15.04 "Vivid Vervet" - Release i386 (20150422.1)
ProcEnviron:
LANGUAGE=it_IT.UTF-8
PATH=(custom, no user)
LANG=it_IT.UTF-8
SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)
I think I have seen a few reports like this recently. It appears that 32 bit EFI grub is confused and is looking for 32 bit bios files:
/usr/lib/