i want to update y iPad to IOS 6 but I m enable to sync my camera roll to my computer. HELP!!!!!
Here's an article that addresses your question:
The article says camera roll is backed up by iTunes.
If you think the sync is not working, while your iPad is plugged in to iTunes, click the "Photos" tab at the top right of the iTunes window (while your iPad is selected on the left of the iTunes window), and check the sync options you've selected.