I tried again using 'ubiquity --debug --pdb'. Same thing happened, but now hopefully the apport-collected files will contain more useful information.
** Description changed: During installation, after entering the user information, the installer slows down to a crawl and the status bar (which says "Copying files") stops. Upon switching VT to 2 and back to 7, the window contents is not updated. Checking with top, the ubiquity process uses 70-95% CPU and after a while 750 M (of 1 G) of real memory and 3.5 G (of 4.0 G) of virtual memory. The information uploaded with apport-collect is from the same LiveUSB session after I killed the ubiquity process an hour or two after it first hung. Apport wanted to submit a bug report automatically when the unity session started, but that bug report was wrongly judged to be a duplicate of bug 652916. --- ApportVersion: 1.90-0ubuntu1 Architecture: amd64 CasperVersion: 1.296 DistroRelease: Ubuntu 12.04 LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111227) Package: ubiquity 2.9.10 PackageArchitecture: amd64 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.2.0-7.13-generic 3.2.0-rc7 Tags: precise running-unity ubiquity-2.9.10 Uname: Linux 3.2.0-7-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + --- + ApportVersion: 1.90-0ubuntu1 + Architecture: amd64 + CasperVersion: 1.296 + DistroRelease: Ubuntu 12.04 + LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111227) + Package: ubiquity 2.9.10 + PackageArchitecture: amd64 + ProcEnviron: + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcVersionSignature: Ubuntu 3.2.0-7.13-generic 3.2.0-rc7 + Tags: precise running-unity ubiquity-2.9.10 + Uname: Linux 3.2.0-7-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/909179 Title: [Precise] Ubiquity uses up all memory and hangs during installation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/909179/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs