I've seen a few guides on how to unlock the Galaxy Nexus to prepare it for rooting, and they say that the
fastboot oem unlock command will "wipe your personal data".
I'm a little unclear on what gets wiped during this step. Is it just the
/sdcard area? is it everything but
/system? Something in between?
I know that
adb backup can (at least theoretically) back up everything except
/system while unrooted (see a recent question of mine). But I wonder if I would need to do an
adb restore of everything after the unlock step in order to keep all of my data and settings.