I just installed Ubuntu on my machine and there is no wireless connection. I mean, the wireless card won't even show at the top pane of my desktop.

I might also add that whenever the Ubuntu launches, a moment before I get the login screen, there are three lines that say: 

```
ERROR... something... something... wireless... go to www.kernel... something...  

```

I don't know the exact words in the errors, because it vanishes a second after it appears, and it's too fast for me to read.

Is there a command that can detect my wireless card specification so I can look for a driver? or better yet, is there a command that can download the necessary drivers for the wireless card? 

Here are the results for `ifconfig`:

```
eth0      Link encap:Ethernet  HWaddr 88:ae:1d:33:93:b0  
          inet addr:10.0.0.5  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fe80::8aae:1dff:fe33:93b0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3539 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2922 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3317067 (3.3 MB)  TX bytes:332509 (332.5 KB)
          Interrupt:17 

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:65536  Metric:1
          RX packets:1119 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1119 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:110448 (110.4 KB)  TX bytes:110448 (110.4 KB)

```

If any more information is needed, tell me.

Please, this is very important to me, I have a project due next week, and I cannot do it without wireless (I'm connected through wired connection right now).

EDIT:  

Here's some more information that might help, `lspci -nn | grep 0280` gives: 

```
04:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)

```