Long story short, I was trying to get the full ubuntu hack working on my phone, and after pushing a file, my phone is stuck at the motorola logo forever. It makes no sense why; the file I pushed was just a revised mountosh script that for one shouldn't be running at boot and two doesn't even affect system files. It seems like the only way out is to use fastboot, but instead of restoring the entire system and losing everything, can't I just flash a stock 2.3.5 system.img via fastboot? Will that boot into the new system and preserve all of my data?