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How do I enable WiFi from the Ubuntu 11.10 netroot recovery terminal?

After just 12 hours with Ubuntu, I managed to destroy my ATI fglrx drivers and now I can't repair them without Internet access.

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Connecting to WiFi via the recovery terminal is different than connecting to Starbucks' WiFi via a normal terminal. – pate Feb 16 '12 at 11:29

First, run ifconfig wlan0 up. This will enable wireless. You won't get any feedback unless there's a problem. Next, run iwlist wlan0 scan to scan for nearby wireless networks. Once you have looked at the output and know which wireless network you want to connect to, run iwconfig wlan0 essid NETWORK_ID key s:WIRELESS_KEY, replacing NETWORK_ID with the name (essid) of the nework and WIRELESS_KEY with the network passcode. Hope that helps!

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