Installation crashes if done with a particular partitioning scheme

[Lino Barreca]

This bug follows bug 1650782.
Media has been verified, no errors.
In the other bug the installer crashed after I manually partitioned the disk in a particular way through the setup program.
To try to workaround it instead of Install Ubuntu I selected Try Ubuntu.
Launched the setup from the icon and at the "how to install" I choose again "custom partitioning".
Created a standard "boot" partition from there and assigned to mountpoint /boot.

Then opened a terminal and created a luks partition an LVM volume inside it and three logical volumes

ubuntu@ubuntu:~$ sudo -i
root@ubuntu:~# pvcreate /dev/mapper/sdc7_crypt
  Physical volume "/dev/mapper/sdc7_crypt" successfully created
root@ubuntu:~# vgcreate lvm /dev/mapper/sdc7_crypt
  Volume group "lvm" successfully created
root@ubuntu:~# lvcreate -L 10G lvm -n swap
  Logical volume "swap" created.
root@ubuntu:~# lvcreate -L 15G lvm -n root
  Logical volume "root" created.
root@ubuntu:~# lvcreate -l 100%FREE lvm -n home
  Logical volume "home" created.
root@ubuntu:~# mkfs.ext4 /dev/mapper/lvm-root
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 3932160 4k blocks and 983040 inodes
Filesystem UUID: fa438be2-433e-4aac-a8ca-8c483f14743f
Superblock backups stored on blocks:
 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

root@ubuntu:~# mkfs.ext4 /dev/mapper/lvm-home
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 17835008 4k blocks and 4464640 inodes
Filesystem UUID: 378a8d39-19bd-45b4-a3a5-451b887cfe7c
Superblock backups stored on blocks:
 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
 4096000, 7962624, 11239424

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

root@ubuntu:~# mkswap /dev/mapper/lvm-swap
Setting up swapspace version 1, size = 10 GiB (10737414144 bytes)
no label, UUID=6a805aed-320a-462e-a7d0-931100716c6c

Went back to the setup program (which was opened at the custom partitioning page) I pushed back and next again (to open the custom partitioning page again).
In that page I could see the new volumes and assigned the mount points from there for home and root.
Then I clicked next and the setup finished copying files. Before, when trying to do the same partitioning within the setup, it crashed immediately after clicking on install (and that was already reported in bug 1650782)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63.2
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CasperVersion: 1.376
Date: Sun Dec 18 00:16:09 2016
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
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)