My computer has 2 Operating systems, Windows XP and Ubuntu.
But with windows I can go online but Ubuntu can't find the network card.
How should I solve this?

oh dear.

can you tell us the make & model of the card.

also can you open a terminal and run:


sudo ifconfig

and

sudo ifconfig -a


sudo lspci


then show the output....

My network card is: 3Com Etherlink III ISAPN ethernet adapter <generic 3C509b>

and the output of the commands is:

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:3977 errors:0 dropped:0 overruns:0 frame:0
TX packets:3977 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:308390 (301.1 KiB) TX bytes:308390 (301.1 KiB)

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:4177 errors:0 dropped:0 overruns:0 frame:0
TX packets:4177 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:323260 (315.6 KiB) TX bytes:323260 (315.6 KiB)

sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

0000:00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev 44)
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP]
0000:00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22)
0000:00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 10)
0000:00:07.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 10)
0000:00:07.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 10)
0000:00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
0000:00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 Audio Controller (rev 20)
0000:00:0f.0 Multimedia video controller: Zoran Corporation ZR36057PQC Video cutting chipset (rev 01)
0000:01:00.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev 01)


I hope somebody here can help me out

it doesnt appear that your network card is being detected at all. which is really wierd, coz that card class is pretty common. so if it's working in windows xp i can't explain.

does it work with a live CD like DSL?

I tried it with Knoppix and then I can access the internet, but with Ubuntu I can't

Any suggestions?