When I go into Reboot into Recovery from ROM Manager, I get the dead android. Then the phone spontaneously reboots after a couple of minutes of the dead android.
The only way I can avoid the dead android is to reflash CWM Recovery and then go directly into Reboot into Recovery from ROM Manager. But if I don't reflash CWM Recovery each time before I go into Reboot into Recovery, I get the dead android. Each time I reflash CWM Recovery it tells me it was successful.
Obviously something is wrong since CWM Recovery never gets flashed permanently to my phone. I think this must have something to do with how I can't write to my GNex from Windows XP. Maybe I don't truly have root access?
I just went into advanced options and I saw fix permissions so I am running that. Maybe that will help?
ETA - nope didn't fix it. Got the dead android again.
If you want permanent Clockwork Recovery (via XDA):
1. Install Root Explorer from the market and delete /system/reboot-from-recovery.p – *Mount as R/W first*
2. Reboot into Fastboot Mode: Power off your device and (Power + Volume Up and Down)
3. Flash CWM (fastboot flash recovery recovery-clockwork-5.5.0.4-toro.img)
4. Reboot into OS (fastboot reboot)
5. You now have CWM recovery permanently installed
Also, you don't have to use Root Explorer (it's a paid app) You just need to use a file browsing app that has root access and is able to R/W