Ubiquity got stuck at 'Identifying file system...'
I had a partition made and formatted to ext4 with gparted, so it is not a problem because of reformatting.
I did not use OEM, so it should not be 'post-OEM', but maybe it is the same cause?
Isotesting: From the live session I tried 'something else' at the partitioning page, reused a shared swap partition, and used a partition made for this purpose, that was never used (only formatted). I had complaints, that the swap was on when it was not on. After re-trying, the installer could continue.
The target drive is a USB HDD dedicated to testing. There are already two linux distros installed: Xubuntu and Mageia, but it should work anyway.
I could enter language and user identification. The installation continued, but got stuck with a rotating round cursor at the text 'Identifying file system...' (in Swedish).
DistroRelease: Ubuntu 14.10
Package: ubiquity 2.19.8
Uname: Linux 3.16.0-17-generic i686
Date: Wed Sep 24 12:39:24 2014
LiveMediaBuild: Lubuntu 14.10 "Utopic Unicorn" - Alpha i386 (20140923)
PATH=(custom, no user)
UpgradeStatus: No upgrade log present (probably fresh install)