Had the same problem on a Dell 2650 Server and a Dell workstations both with a Broadcom ethernet chip. Very annoying, works with 10.04 but not 11.04. I manually added the IP several times to keep the install going I do not understand the fix mentioned by Sandor. Below are the 2 network cards and the install syslog messages. After the install things seem to work fine.
% lshw -C network WARNING: you should run this program as super-user. *-network:0 description: Ethernet interface product: NetXtreme BCM5703X Gigabit Ethernet vendor: Broadcom Corporation physical id: 6 bus info: pci@0000:03:06.0 logical name: eth0 version: 02 serial: 00:0f:1f:70:02:98 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 66MHz capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.116 duplex=full firmware=5703-v2.25a ip=152.2.128.97 latency=64 mingnt=64 multicast=yes port=twisted pair speed=1Gbit/s resources: irq:28 memory:fcd10000-fcd1ffff % lshw -C network WARNING: you should run this program as super-user. *-network:0 description: Ethernet interface product: NetXtreme BCM5705 Gigabit Ethernet vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: eth0 version: 01 serial: 00:10:18:0b:00:22 width: 64 bits clock: 66MHz capabilities: bus_master cap_list rom ethernet physical configuration: broadcast=yes driver=tg3 driverversion=3.102 firmware=5705-v3.11 ip=152.2.131.168 latency=64 mingnt=64 multicast=yes Jul 13 13:56:29 net/hw-detect.hotplug: Detected hotpluggable network interface eth0 Jul 13 13:57:15 kernel: [ 487.983861] tg3 0000:03:06.0: eth0: Tigon3 [partno(BCM95703A30) rev 1002] (PCIX:133MHz:64-bit) MAC address 00:0f:1f:70:02:98 Jul 13 13:57:15 kernel: [ 487.983876] tg3 0000:03:06.0: eth0: attached PHY is 5703 (10/100/1000Base-T Ethernet) (WireSpeed[1]) Jul 13 13:57:15 kernel: [ 487.983885] tg3 0000:03:06.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] Jul 13 13:57:15 kernel: [ 487.983894] tg3 0000:03:06.0: eth0: dma_rwctrl[769c4000] dma_mask[64-bit] Jul 13 13:57:15 net/hw-detect.hotplug: Detected hotpluggable network interface eth0 Jul 13 13:57:27 kernel: [ 499.357380] tg3 0000:03:06.0: eth0: Failed to load firmware "tigon/tg3_tso.bin" Jul 13 13:57:27 kernel: [ 499.357390] tg3 0000:03:06.0: eth0: TSO capability disabled Jul 13 13:57:27 kernel: [ 499.467335] ADDRCONF(NETDEV_UP): eth0: link is not ready -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/760887 Title: Unable to network install on natty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/760887/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs