MBSL (MicroBlaze Simple Linux) is a set of Makefile scripts to create an image of a Linux-based OS for the Xilinx MicroBlaze (FPGA) soft processor. It provides very simple package management that allows you to customize the resulted image. The purpose is to just type 'make build install' and get the configured image.
OpenBricks is an enterprise-grade embedded Linux framework that provides easy creation of custom distributions for industrial embedded devices. It features a complete embedded development kit for rapid deployment on x86, ARM, PowerPC, and MIPS systems with support for industry leaders. It is meant for individuals and companies that are looking for rapid board bring-up with fine-grain embedded Linux distribution setup with complete customization. It eliminates the need to care about BSP and toolchain.