acme_config files to recreate colibri 832 fimages: acme_config_colibri-832.zip.
acme_config files to recreate colibri 416 fimage: acme_config_colibri-416.zip.
Those images include test_colibri executable inside.
For all boards the instructions to flash the Fox Board are here:
How to write a new fimage in the FOX BOARD