dest root /
dest ram /tmp
lists_dir ext /var/opkg-lists
option overlay_root /overlay
src/gz barrier_breaker_base http://downloads.openwrt.org/barrier_breaker/14.07/x86/generic/packages/base
src/gz barrier_breaker_luci http://downloads.openwrt.org/barrier_breaker/14.07/x86/generic/packages/luci
src/gz barrier_breaker_packages http://downloads.openwrt.org/barrier_breaker/14.07/x86/generic/packages/packages
src/gz barrier_breaker_routing http://downloads.openwrt.org/barrier_breaker/14.07/x86/generic/packages/routing
src/gz barrier_breaker_telephony http://downloads.openwrt.org/barrier_breaker/14.07/x86/generic/packages/telephony
src/gz barrier_breaker_management http://downloads.openwrt.org/barrier_breaker/14.07/x86/generic/packages/management
src/gz barrier_breaker_oldpackages http://downloads.openwrt.org/barrier_breaker/14.07/x86/generic/packages/oldpackages
原文：http://www.cnblogs.com/ruiy/p/4563885.html