For those of you requiring a portable Ubuntu installation with more than 4GB of persistent storage, the recommended workaround would be to use ubiquity (the Ubuntu installer) to install directly to a USB disk. Please note that if you do this, be sure to manually specify the MBR/Bootloader in the advanced options at the last step of the installation (which is a bug). See Bug #549756 for more details on the workaround needed when installing Ubuntu to a USB drive.
For those of you requiring a portable Ubuntu installation with more than 4GB of persistent storage, the recommended workaround would be to use ubiquity (the Ubuntu installer) to install directly to a USB disk. Please note that if you do this, be sure to manually specify the MBR/Bootloader in the advanced options at the last step of the installation (which is a bug). See Bug #549756 for more details on the workaround needed when installing Ubuntu to a USB drive.