Jailbroken iPod touch settings?

okay, today I decided to wipe my ipod and start over without my jailbreak. I have Ubuntu 11.10 on my laptop so I cant use Itunes, yes even through wine, as it doesant work with the usb port for whatever reason. so my question is how do I get it out of...

8gb 4th generation jail broken

I have a jailbroken ipod touch 2g 3.1.2 and certain settings won't work including Wi-Fi it says no Wi-Fi and is tinted grey and i can't turn on a password or reset all the settings.

I have a jailbroken iPod Touch 4G running on iOS 5.0.1. I went into settings and pressed reset, now, all I have is this loading screen that is still loading after 3 hours! Will it stop or do I need to get it fixed? PLEASE HELP!

if i restore my ipod touch 3rd generation, Jailbroken to its factory settings, will i still be able to rejailbreak it after the restoration?

See my Ipod touch 2g 16GB is Jailbroken and I've tried going to Settings-General-Wallpaper and then the Image you want. But it doesn't show on the main menu.... Is there some sort of problem i have to do or check in on winter board ?

iDevice: iPod Touch 3g, iOS 5.1, Jailbroken Ok so i was able to create an Ad Hoc network and connect to it with my ipod just fine, but now when i try to connect to it my ipod shows a stron signal but when i try to go into safari i get a message saying...