chroot network issues

mroconnor · Guru Joined: 24 Feb 2006 Posts: 402 Location: USA

All I had was some Ubuntu 8.10 media to install Gentoo with on my new laptop(everything works on my thinkpad W500 with this livecd WOW).

So I proceeded, everything went ok, I shut it down moved it from home to work, rebooted to the LiveCD mounted my drives copied /etc/resolv.conf over and chroot'ed but I can not resolv host names in the chroot only from the LiveCD user(in this case Ubuntu).

Not the end of the world but trying to emerge anything dies with cant resolve host name when downloading sources. ANyone have any thoughts on mwhat I did wrong? It worked ok at home on my wireless connection.

Thanks in advance.

Marc

padoor · Advocate Joined: 30 Dec 2005 Posts: 4185 Location: india

your dns server at home may be different from your work dns.
with the livcd if the network connection it picksup again you have to copy the resolv.conf. at your work and back again at your home.
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mroconnor · Guru Joined: 24 Feb 2006 Posts: 402 Location: USA

Unfortunately, that isnt the problem as I am writing this from the browser running off the LiveCd. It is only an issue from with in the chroot environment.

I have tried env-update, recopying the resolv.conf but if I launch wget, emerge, etc from with in the chroot I can not resolve names.

Sadako · Posted: Mon Dec 15, 2008 8:28 pm Post subject:

mroconnor · Guru Joined: 24 Feb 2006 Posts: 402 Location: USA

I can ping local machines on this network by DNS and IP from with in the chroot. The /etc/resolv.conf and /mnt/gentoo/etc/resolv.conf are identical.

Im wondering if I buggered something up by copying things to /mnt/gentoo/etc from my other working laptop a little too soon.

NeddySeagoon · Posted: Mon Dec 15, 2008 9:36 pm Post subject:

mroconnor,

Do you have a typo in the file name inside the chroot ?
resolve.conf is a popular one ... there is no e on the end of resolve
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padoor · Advocate Joined: 30 Dec 2005 Posts: 4185 Location: india

can you run a traceroute to yahoo.com
it may provide some clue about gateway ip address dns etc in the first few lines.
you may even find the isp address. first from cd environment and from chroot env. if it sees ip and dns
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DONAHUE · Posted: Tue Dec 16, 2008 4:06 am Post subject:

Either
In the cd system with the installed system mounted at /mnt/gentoo, run:

mroconnor · Guru Joined: 24 Feb 2006 Posts: 402 Location: USA

I have checked spelling errors, DNS servers, etc and nothing seems to work.

On the wired connection in my office(I manage the DNS servers and can confirm they are functional) I have no luck resolving names in the chroot and no issues from the livecd. Just to test I took it home last and used both my wired and wireless connections. Same issue. With the wireless connection I have no isses(chroot or LiveCD) once I use a wired connection I can not resolve names in the chroot.

It is really odd, but I can manage around it was just trying to get the new laptop up and running while I should be working

.

I'm going to assume it is how the ubuntu livecd handles the connection with networkmanager etc. Just for shits and giggles I am going to try a SystemRescueCD as well.

I'll report back.

padoor · Advocate Joined: 30 Dec 2005 Posts: 4185 Location: india

the eth0 trouble can be due to udev version and configuration of rule 70.
check it if it is 130 or less version of udev. or make it 130.
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mroconnor · Guru Joined: 24 Feb 2006 Posts: 402 Location: USA

I hate to say this after I have received all this help but I trashed the install and started over. When I went to reboot it would not mount my reiserfs /usr/portage partition. I went back to my old standy the SystemRescueCD.

Thanks for everyone's help.