So i tried upgrading my ps3 hdd to 320gb from 160gb, and got stuck on this screen. At the time, i was running 4.82CFW Cobra Ferrox, trying to upgrade to 4.84CFW Cobra
PS3: Official Rebug 4.82.2 Lite with COBRA 7.55 released!! - Hackinformer
GUIDE: PS3 4.82 CFW Installation for Dummies | GBAtemp.net - The Independent Video Game Community