cat /etc/apt/sources.list.d/debug_symbols.list
deb [arch=i386,amd64] http://ddebs.ubuntu.com trusty main restricted universe multiverse #Debug Symbols
deb [arch=i386,amd64] http://ddebs.ubuntu.com trusty-updates main restricted universe multiverse #Debug Symbols
deb [arch=i386,amd64] http://ddebs.ubuntu.com trusty-proposed main restricted universe multiverse #Debug Symbols