where $TinyOS_ROOT= /opt/tinyos-2.1.0 for ubuntu
$ cd $TinyOS_ROOT/tos/platforms/
$ unzip tos-platforms.zip
$ unzip tos-platforms.zip
2) Download support-make.zip and Unzip in $TinyOS_ROOT/support/make/
$ cd $TinyOS_ROOT/support/make/
$ unzip support-make.zip
$ unzip support-make.zip
3) Finally, to compile/install Blink on Epic, type:
$ cd $TinyOS_ROOT/apps/Blink
$ make epic install
$ make epic install