Hello everyone...!!

Im just a beginner. After finding out that we can boot ubuntu from USB i was so eager to try it. I have a 4GB Transcend USB flash installed with Ubuntu 12.04.2 Desktop i386. Now the problem im facing is wirless connection. I have LENOVO 2049 laptop installed with windows XP. I can easily connect to the internet which is password protected. But in ubuntu i couldn't see any wireless connection even though i can access internet through wired connection ethernet.

When i entered lspci... this is what i get....


ubuntu@ubuntu:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 03)
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (secondary) (rev 03)
00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HM (ICH8M) LPC Interface Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [IDE mode] (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
04:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
06:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)
ubuntu@ubuntu:~$ ^C
ubuntu@ubuntu:~$
below are the methods i tried....

ubuntu@ubuntu:~$ sudo apt-get remove bcmwl-kernel-source
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package bcmwl-kernel-source is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 120 not upgraded.
ubuntu@ubuntu:~$ sudo apt-get install firmware-b43-installer b43-fwcutter
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package firmware-b43-installer
ubuntu@ubuntu:~$ sudo apt-get install b43-fwcutter
Reading package lists... Done
Building dependency tree
Reading state information... Done
b43-fwcutter is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 120 not upgraded.
ubuntu@ubuntu:~$ sudo apt-get install firmware-b43-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package firmware-b43-installer
ubuntu@ubuntu:~$ sudo apt-get install firmware-b43-installer
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
ubuntu@ubuntu:~$ sudo apt-get install firmware-b43-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package firmware-b43-installer
ubuntu@ubuntu:~$ sudo apt-get install firmware-b43-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package firmware-b43-installer
ubuntu@ubuntu:~$ sudo apt-get install firmware-b43-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package firmware-b43-installer

for typing ifconfig.............

ubuntu@ubuntu:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1b:38:a2:86:f0
inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21b:38ff:fea2:86f0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22580 errors:0 dropped:0 overruns:0 frame:0
TX packets:19019 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:26974226 (26.9 MB) TX bytes:2024452 (2.0 MB)
Interrupt:19

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1100 errors:0 dropped:0 overruns:0 frame:0
TX packets:1100 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:100579 (100.5 KB) TX bytes:100579 (100.5 KB)

ubuntu@ubuntu:~$
Pls help me to solve this....thank you !!