Live CD Install Network is unreachable

stay · n00b Joined: 21 Dec 2005 Posts: 16

Hello, another newbie trying to install.

I am attempting to setup the network after booting from the 2005.1-r1 AMD 64 release. Get Network is unreachable when I try to ping my DNS. NIC is on the MB, and seems to be detected. ifconfig never gives me an ip address. Network works fine under XP and Knoppix.

Command details:

ifconfig:
::::::::::::::
eth0 Link encap:Ethernet HWaddr 00:15:F2:3A:78:24
BROADCAST MULTICAST MTU:1500 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:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:10 Base address:0x8000

lsmod:
Module Size Used by
parport_pc 30952 0
parport 27788 1 parport_pc
pcspkr 4056 0
8139too 20352 0
mii 4352 1 8139too

lspci:
0000:02:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139
C/8139C+ (rev 10)

Hope someone can help. Thanks.

chrism · Guru Joined: 15 Jul 2004 Posts: 526

Have you tried setting your IP up manually?

stay · n00b Joined: 21 Dec 2005 Posts: 16

Ran ifconfig eth0 192.168.2.35
route -n gives:

Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo

Looking at the DHCP log on the router I never see a request from the PC

Thanks,
Shaun

nixnut · Posted: Wed Dec 21, 2005 6:35 pm Post subject:

If the knoppix cd works, you can use that to do the install.
There's even some documentation on it here: http://www.gentoo.org/doc/en/altinstall.xml#doc_chap3
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stay · n00b Joined: 21 Dec 2005 Posts: 16

Couple of issue with Knoppix. First when I attempt to run chroot as described in chap. 6. I get an error of Exec format error. I assume this is caused from Knoppix being 32 bit and my tarball is 64 bit. Second, if I can't get networking running when I install Gentoo - I'm thinking it won't be working once Gentoo is installed. Would kinda like to have a connection with Gentoo. Maybe there are more network config tools available once up and running.

nixnut · Posted: Wed Dec 21, 2005 7:36 pm Post subject:

Yeah, you've got a point with 32 v. 64 bits there. Ok, if the livecd can't seem to get an ip number from the livecd try assigning one yourself. Like you did with ifconfig, but you may need to add the ip of the router as gateway. And you need to create /etc/resolv.conf and add one or more nameservers (your isp's nameservers) to it.

jmbsvicetto · Posted: Wed Dec 21, 2005 8:00 pm Post subject:

Hi and welcome to the forums stay.

Are you sure that you're not having a problem with the nic module? Please post the output from the following

stay · n00b Joined: 21 Dec 2005 Posts: 16

I assigned the IP manually, ran route add default gw <router-ip>, and have my DNS ip's in the /etc/resolv.conf.

Error message from ping <router-ip> changes from Network is unreachable to Destination Host Unreachable.

route -n now gives me
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo
0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0 eth0

jmbsvicetto · Posted: Wed Dec 21, 2005 8:19 pm Post subject:

Can you ping your router? Can you ping other hosts in your network?
Look at the output of the following

stay · n00b Joined: 21 Dec 2005 Posts: 16

Not sure why, but traceroute doesn't seem to exist in the Liveboot CD nor the traball 3 image. Maybe it's not in the standard path. and I have to do some digging.

mutex · Tux's lil' helper Joined: 04 Sep 2003 Posts: 146

Easy way to find out

stay · n00b Joined: 21 Dec 2005 Posts: 16

Thanx, that saved me some research time. Traceroute does not exist as an executable. Found a directory under portage.

mutex · Tux's lil' helper Joined: 04 Sep 2003 Posts: 146

Try tracert not traceroute, depends on which package you get I think

jmbsvicetto · Posted: Thu Dec 22, 2005 12:01 am Post subject:

stay · n00b Joined: 21 Dec 2005 Posts: 16

Ping gives me Network is unreachable after dhcpcd is run.
Ping gives me destination Host Unreachable if ip is manually assigned.

jmbsvicetto · Posted: Thu Dec 22, 2005 12:55 pm Post subject:

stay · n00b Joined: 21 Dec 2005 Posts: 16

Reply comes from the IP I assigned to the computer. Can't ping router or anything else.

ifconfig -a output:

eth0 Link encap:Ethernet HWaddr 00:15:F2:3A:78:24
inet addr:192.168.2.35 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 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:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:10 Base address:0x8000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:560 (560.0 b) TX bytes:560 (560.0 b)

jmbsvicetto · Posted: Thu Dec 22, 2005 2:55 pm Post subject:

If you get that output after conducting the tests, then you need to use a different driver for your nic. If you look closely, the nic didn't send or receive a single packet.
What driver are you using? What card do you have? You can check that with

stay · n00b Joined: 21 Dec 2005 Posts: 16

lsmod and lspci output are in the first post.

This is interesting however. Below is the lsmod from booting knoppix. Couple of differences from the gentoo lsmod.

Module Size Used by Not tainted
ext3 64388 1 (autoclean)
jbd 46804 1 (autoclean) [ext3]
autofs4 8756 1
af_packet 13544 0 (autoclean)
8139too 13800 1
mii 2240 0 [8139too]
crc32 2816 0 [8139too]

jmbsvicetto · Posted: Thu Dec 22, 2005 3:37 pm Post subject:

stay · n00b Joined: 21 Dec 2005 Posts: 16

Thanks for the advise, was thinking I would probably have to try another nic. Wish I hadn't thrown out my old one. Time to open up my wife's computer. :twisted: