| View previous topic :: View next topic |
| Author |
Message |
maguire
Tux's lil' helper
Joined: 27 May 2004
Posts: 103
Location: Longmont, Colorado
|
 Posted: Wed Dec 05, 2007 10:46 pm Post subject: Network with liveCD, none after installation! |
 |
|
*Please* help... I'm pulling my hair out. 
I'm installing Gentoo on a new Dell Optiplex 745, and eth0 came-up fine with the live CD, but I *cannot* get the networking to work on the installation!
I'm using the same network driver as the liveCD picked: "tg3" (Broadcom NetXtreme 57xx gigabit). The messages in syslog look *identical*, *except* when, after getting an IP address from the DHCP server, the "route" to the gateway is added. With the liveCD, the route to the gw is added successfully. Booting my installation, however, results in:
| Code: |
dhcpcd: eth0: adding default route via 10.101.103.254 metric 0
dhcpcd: eth0: netlink: Network is unreachable
|
and I cannot ping the gateway, or anything else. That gw IP address is correct, BTW.
I've tried to *manually* add the route, but I can't because the "network is unreachable."
I've tried using the "tigon3" as a module (as is recommended), and also compiling it in into the kernel. I've looked at *all* the modules loaded with the liveCD, and I don't see anything else that could make the difference. What am I missing? *Please* help...!
What else can I do to help diagnose the problem?
Thanks much!
Bruce. |
|
| Back to top |
|
 |
poly_poly-man
Advocate
Joined: 06 Dec 2006
Posts: 2477
Location: RIT, NY, US
|
| Posted: Wed Dec 05, 2007 11:45 pm Post subject: |
|
|
weird - though I have a hunch - what does ifconfig -a say?
poly-p man
_________________
iVBORw0KGgoAAAANSUhEUgAAA
avatar: new version of logo - see topic 838248. Potentially still a WiP. |
|
| Back to top |
|
|
UberLord
Retired Dev
Joined: 18 Sep 2003
Posts: 6835
Location: Blighty
|
|
| Back to top |
|
|
maguire
Tux's lil' helper
Joined: 27 May 2004
Posts: 103
Location: Longmont, Colorado
|
| Posted: Thu Dec 06, 2007 12:37 am Post subject: |
|
|
| poly_poly-man wrote: | weird - though I have a hunch - what does ifconfig -a say?
poly-p man |
Yeah... Nothing different. Just "eth0" and "lo". It includes the correctly-issued IP addr from the DHCP server: 10.100.103.30 (and correct bcast and mask).
Interestingly, though, i keep seeing the received-bytes count go up: RX packets: 6075... RX packets: 6077... RX packets: 6079... But the TX packet-count is 7 (1020 bytes) and that is all she wrote!
Thanks for the reply! I know one of you guys/gals will save me! 
Bruce. |
|
| Back to top |
|
|
maguire
Tux's lil' helper
Joined: 27 May 2004
Posts: 103
Location: Longmont, Colorado
|
| Posted: Thu Dec 06, 2007 12:42 am Post subject: |
|
|
| UberLord wrote: | At a guess it's a problem with the dhcpcd versions in use. What version do you have installed?
I'm guessing it's because the DHCP server isn't sending the right static route anyway - older dhcpcd versions made a guess, which was sometimes wrong so newer ones don't guess and rely on correct DHCP server settings.
To see what routes you had, copy here the contents of /var/lib/dhcpcd-eth0.info |
But why can't I even *ping* the gateway? Am I missing something? I can't even add the route manually, because I can't ping the gateway...
I tell you, I'm really stumped. Is there *anything* else I can compare between the liveCD configuration and the installation? I've scoured "/etc/sysconfig" for all the system configuration information (verifying that I had the correct network driver). I've written-down *every* module loaded in the liveCD setup. Everything I can find looks the same.
What else can I do?
Thanks for the help!
Bruce. |
|
| Back to top |
|
|
poly_poly-man
Advocate
Joined: 06 Dec 2006
Posts: 2477
Location: RIT, NY, US
|
| Posted: Thu Dec 06, 2007 12:49 am Post subject: |
|
|
To tell if it's a dhcp problem, try setting a static address temporarily, and see if you can ping.
poly-p man
BTW, can someone else ping you?
_________________
iVBORw0KGgoAAAANSUhEUgAAA
avatar: new version of logo - see topic 838248. Potentially still a WiP. |
|
| Back to top |
|
|
maguire
Tux's lil' helper
Joined: 27 May 2004
Posts: 103
Location: Longmont, Colorado
|
| Posted: Thu Dec 06, 2007 1:10 am Post subject: |
|
|
| poly_poly-man wrote: | To tell if it's a dhcp problem, try setting a static address temporarily, and see if you can ping.
poly-p man
BTW, can someone else ping you? |
I just changed /etc/conf.d/net to use 'ifconfig', a static address, and add the 'route'. I then restarted /etc/init.d/eth0. The IP address is set, then I get an:
| Code: |
SIOCADDRT: Network is unreachable
|
And no, I cannot 'ping' that box from another.
Any other ideas?
Thanks again for the help!
Bruce. |
|
| Back to top |
|
|
maguire
Tux's lil' helper
Joined: 27 May 2004
Posts: 103
Location: Longmont, Colorado
|
| Posted: Thu Dec 06, 2007 3:42 pm Post subject: |
|
|
So, I believe that means that this is not a DHCP problem.
Does anyone have any ideas on what else I could look at?
Thanks!
Bruce. |
|
| Back to top |
|
|
maguire
Tux's lil' helper
Joined: 27 May 2004
Posts: 103
Location: Longmont, Colorado
|
| Posted: Thu Dec 06, 2007 7:34 pm Post subject: |
|
|
OK. After more time of banging my head against the wall...
I've noticed two tiny differences between the liveCD environment and my fresh install:
FIRST: dmesg difference:
Install with "Network unreachable":
| Code: |
$grep eth[0-9] /var/log/dmesg
...
RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[1]
...
|
LiveCD with working network:
| Code: |
$grep eth[0-9] /var/log/dmesg
...
RXcsums[1] LinkChgREG[1] MIirq[1] ASF[0] Split[0] WireSpeed[1] TSOcap[1]
...
|
Note that:
"LinkChgREG" "MIirq" are "[0]" for the non-working install, and "[1]" for the working liveCD, and
"Split[0]" doesn't exist for the non-working install.
SECOND: ifconfig difference:
Install with "Network unreachable":
| Code: |
$ ifconfig -a
...
UP BROADCAST RUNNING MULTICAST ...
...
|
LiveCD with working network:
| Code: |
$ ifconfig -a
...
UP BROADCAST NOTRAILERS RUNNING MULTICAST ...
...
|
Note that:
"NOTRAILERS" is missing on the non-working install.
This is *all* that I can see that is different!
Any NIC expert out there that can help?
Thanks!
Bruce. |
|
| Back to top |
|
|
maguire
Tux's lil' helper
Joined: 27 May 2004
Posts: 103
Location: Longmont, Colorado
|
| Posted: Thu Dec 06, 2007 9:51 pm Post subject: |
|
|
Wow...  My fall-back solution didn't work either...
I figured that if the liveCD had network, then worst-case, I could use 'genkernel' (for the first time) to configure my kernel for me. I just did that, and I *still* get
| Code: |
SIOCADDRT: Network is unreachable
|
How can this be? Isn't the purpose of 'genkernel' to generate a kernel like the one you are running on the liveCD? How can I have network on the liveCD, but not after configuring/compiling/installing with 'genkernel'?
Anyone?
Thanks,
Bruce. |
|
| Back to top |
|
|
|
Networking & Security
