[ubuntu] wireless problems(iwlwifi)

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http://ubuntuforums.org – hi,i'm new here):P,and i'm fresh to linux.i have some problems to get my wireless working,but the wired works fine. it seems like it havent load the modules,even i have no idea what modules it need. it is intel wireless centrino n-2230. Code: lemon@lemon:~$ uname -a Linux lemon 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:09:38 UTC 2010 x86_64 GNU/Linux lemon@lemon:~$ lspci -nn | grep -i net 03:00.0 Network controller [0280]: Intel Corporation Device [8086:0888] (rev c4) 09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet contr (Hardware)