That's awesome. I'll be trying that here in the next couple days. Also, to confirm: I just got the first of two used ZD1100's in today. It had 9.8.x installed. I downgraded to 9.7.x, then upgraded that to 9.10. It's deployed and working fine.
Just to follow up - I successfully cloned the stock USB drive using dd. I made an image file as a backup, then wrote that out to a new, generic 4GB stick. Works perfectly. With any luck, wear-leveling will make it last longer than the original.
Did you have a valid service contract on the ZD1100 you upgraded to 9.10? I was told the 9.10 checks for this before letting you upgrade. (I just bought a used ZD1100, and am trying to find the latest fw I can use)
Daniel I'm tinking about buying a zonedirector 1100 that powers on but won't boot on ebay for my R600 and r700 to coexist properly at home. I presume that it was pulled from a working environment and hard reset for too long. Would it be possible to get your cloned image as you've had success so I could just switch out the USB? Thanks Richard