I booted from the ISO in an ntfs partition and ran the installer. I already had the partition table set up and so didn't make any changes, but ubiquity complained it was unable to rewrite the partition table (/isodevice can't be unmounted because it contains the ISO) but let me continue anyway.
After filling in the forms and starting the install, it's now showing the 'Welcome to Ubuntu 14.04' slideshow, complete with scrolling; but there's no progress bar, message or terminal below, and htop doesn't show any installation activities happening.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.18.7
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.340
Date: Tue Jul 8 13:50:25 2014
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InstallCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz.efi boot=casper persistent iso-scan/filename=/Downloads/ubuntu-14.04-desktop-amd64.iso
InterpreterPath: /usr/bin/python3.4
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)
Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. If you test it and it is still an issue, kindly upload the updated logs by running only once:
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