It's just another subcomponent like main/debian-installer, so you can do this:
deb http://ppa.launchpad.net/linaro-maintainers/overlay/ubuntu raring main main/debug
It's just another subcomponent like main/debian- installer, so you can do this:
deb http:// ppa.launchpad. net/linaro- maintainers/ overlay/ ubuntu raring main main/debug