sh-3.1$ grep ^Package test.tmp/rootfs/usr/lib/?pkg/status                                              
Package: base-files
Package: base-passwd
Package: busybox
Package: initscripts
Package: libc6
Package: libvolume-id0
Package: makedevs
Package: modutils-initscripts
Package: netbase
Package: sysvinit
Package: sysvinit-inittab
Package: task-poky-boot
Package: tinylogin
Package: udev
Package: update-alternatives-cworth
Package: update-rc.d
sh-3.1$