I did the update while booted to flash. It seemed to work ok; control panel reports 4.2008.30-2. It wiped out my boot menu but that was easy to fix - used gunzip on initfs_flash.tgz, did a tar -xvf, put it right under / , read Fanoush's README.txt, ran initfs_flash; it grabbed my saved bootmenu and I am able to boot to SD and to flash. I'm booted to SD as I post this. ...the worst that will happen is I will need to redo the initfs_flash.