You install Safestrap and reboot into it. You can find it in the Development section, it's the only custom recovery we have above MDL bootloader.
Got it - thanks.. so far its holding up but occasionally it goes into emergency only mode. I am out of country and I can download the 1GB images or take any chances with the phone. So I am ok in its current state. Hope it holds next 2 weeks or so.
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