[yocto] Install rootfs.tar.bz2 to ${D}/home/root/

[Maier, Chris]

Hi, 

I want to create a deployable SD card image. My board (beaglebone based) boots from SD card and runs a script which copies the rootfs.tar.bz2 to the flash memory. 
So how can I deploy a copy of the whole rootfs to ${D}/home/root? 
A rootfs in the rootfs, does that make sense? 

Any help is appreciated. 

Chris