installation of precise beta2 always fails

[John Johansen]

Installation of the precise amd64 beta image from a usb stick always fails on my x120e, it has a windows partition so choose other for disk partitioning is always chosen.

It always fails in the same places, immediately after clicking on continue after creating the user account, or it will crash waiting for the user account to be created if left long enough (hours).

I have tried setting the bios options to efi only, legacy first, and legacy only. Single partition (only /), multi-partion (/ and /home), downloading updates, not downloading updates, network enabled, network disabled, have all been tried during separate installs.

I have gone back and successfully installed from the oneiric amd64 image, and upgraded to precise, so this is a regretion since Oneiric.

Other things to note, if left long enough (watched from top) ubiquity has consumed all 6GB of memory after it has stopped responding.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.4
ProcVersionSignature: Ubuntu 3.2.0-20.33-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
CasperVersion: 1.312
Date: Thu Apr 5 08:51:04 2012
InstallCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64+mac (20120328)
ProcEnviron:
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)