Comment 4 for bug 50780

Examining the paritions, it looks like the installer did apply changes to the partition table. Partitions after the "Installer crashed" message:

root@ubuntu:/home/ubuntu# cat /proc/partitions
major minor #blocks name

   8 0 78125000 sda
   8 1 56196 sda1
   8 2 40957717 sda2
   8 5 1052226 sda5
   8 6 18024898 sda6
   8 16 3999743 sdb
   8 17 40131 sdb1
   8 18 3951990 sdb2
   7 0 631656 loop0
 253 0 56196 dm-0
 253 1 74806672 dm-1
 253 2 3253162 dm-2
 253 3 40131 dm-3
 253 4 3951990 dm-4