OLPC Firmware q4d06/fs-resize
 How to install a 2GB build on a 4GB or 8GB machine
- use fs-update to install the 2GB build,
- use fs-resize to resize the partition that holds the root filesystem,
- boot the build,
- use resize2fs /dev/mmcblk0p2 to resize the root filesystem to the new size of the partition.
An interim fix until ticket #10040 is fixed.