I need to find a way to manually add in the system.img file of the Crespo build for Android onto a Nexus S phone. Has anyone flashed a Crespo build image (I think it boils down to a system.img file) in a way different than the manual? Such as flashing to the device directly on a Windows 7 machine?
I cannot use the commands as found in the directions at http://source.android.com/source/building.html, such as "$ adb reboot bootloader" and "$ fastboot flashall -w" given that my Android build tree exists on a virtual machine (made via VirtualBox) that resides within a server computer (I can access this via RDP and VRDP, though VRDP isn't quite working at the moment to allow me to use the local USB ports of my remote computer).
(A relevant and linked question I have just asked which is also making figuring this out for myself very difficult and if anyone can answer that one as well that would be helpful: http://stackoverflow.com/questions/11090473/how-to-get-nexus-s-version-4-0-4-icecreamsandwich-to-register-as-a-device-on)