Alternate root-filesystem

Based on Angstrom distriution - install using the UBoot update comman:

	run update-root

After installation and if the board has proper internet connection additional
packages can be post-installed using the opkg package management tool
similar to Debian apt-get:

	opkg update - update the package database
	opkg list - list all installable packages
	opkg install <package> - download and install package name <package>
	opkg remove <package> - uninstall package <package>