I have a system running Gentoo 2004.3 and synced daily. The current kernel is 2.4.25, and I'd like to move this system to 2.6. All of my other Gentoo boxes are on 2.6.
What's keeping me at 2.4 is the fact that this system is my "gateway". It connects to my cable modem and provides the router/NAT/firewall service for all of my other systems. I set it up a few months ago using the instructions in
http://www.gentoo.org/doc/en/home-router-howto.xml
and it works fine with a 2.4 kernel. Almost everything works fine on 2.6 except one thing -- when I boot up the system, the DHCP client can't seem to get an IP address from the cable modem on "eth0" -- it times out trying. I've checked all the config files I know about, and I'm pretty sure I have all the kernel modules that need to be there. In fact, I'm guessing I have more modules compiled than I really need.
This seems to be a configuration problem, but I'm totally out of ideas on what to try next. Any ideas?
DHCP finds cable modem with 2.4 but not with 2.6
Message
im not an expert but the configuration that you do have might be handy... one question though:
after you are booted up, does dhcpcd eth0 work, or does it time out again?
it may be a kernel problem... if that doesnt work at all..
killfire
after you are booted up, does dhcpcd eth0 work, or does it time out again?
it may be a kernel problem... if that doesnt work at all..
killfire
my website, built in HAppS: http://dbpatterson.com
an art (oil painting) website I built a pure python backend for: http://www.lydiajohnston.com
an art (oil painting) website I built a pure python backend for: http://www.lydiajohnston.com
Well ... since I posted, I managed to get it to come up with 2.6.10-r1. I'm not sure what made the difference; I worked through all the steps in the Gentoo 2.4 -- 2.6 migration guide, and I suspect the missing link was the fact that I didn't do a "--udev" on the "genkernel" until the last time.killfire wrote:im not an expert but the configuration that you do have might be handy... one question though:
after you are booted up, does dhcpcd eth0 work, or does it time out again?
it may be a kernel problem... if that doesnt work at all..
killfire
Although it came up, it was still messed up somehow -- it didn't have full speed and I dropped back to 2.4 again. But it's better -- it does get an IP address now and talks to the Internet.
have you tried it with a slightly older kernel? or by configuring it yourself? it might help....znmeb wrote:Well ... since I posted, I managed to get it to come up with 2.6.10-r1. I'm not sure what made the difference; I worked through all the steps in the Gentoo 2.4 -- 2.6 migration guide, and I suspect the missing link was the fact that I didn't do a "--udev" on the "genkernel" until the last time.killfire wrote:im not an expert but the configuration that you do have might be handy... one question though:
after you are booted up, does dhcpcd eth0 work, or does it time out again?
it may be a kernel problem... if that doesnt work at all..
killfire
Although it came up, it was still messed up somehow -- it didn't have full speed and I dropped back to 2.4 again. But it's better -- it does get an IP address now and talks to the Internet.
ive heard that the most recent kernels are relatively unstable (with 2.6 being a testing branch now)
killfire
my website, built in HAppS: http://dbpatterson.com
an art (oil painting) website I built a pure python backend for: http://www.lydiajohnston.com
an art (oil painting) website I built a pure python backend for: http://www.lydiajohnston.com
Well ... Gentoo (and other distros, including RHEL 4) have enough confidence in the 2.6 kernel and the community behind it to recommend migration, at least for those with the necessary skill set. I've been a system programmer for large chunks of my career, so I think I have the skill set and the mind set required.killfire wrote:have you tried it with a slightly older kernel? or by configuring it yourself? it might help....znmeb wrote:Well ... since I posted, I managed to get it to come up with 2.6.10-r1. I'm not sure what made the difference; I worked through all the steps in the Gentoo 2.4 -- 2.6 migration guide, and I suspect the missing link was the fact that I didn't do a "--udev" on the "genkernel" until the last time.killfire wrote:im not an expert but the configuration that you do have might be handy... one question though:
after you are booted up, does dhcpcd eth0 work, or does it time out again?
it may be a kernel problem... if that doesnt work at all..
killfire
Although it came up, it was still messed up somehow -- it didn't have full speed and I dropped back to 2.4 again. But it's better -- it does get an IP address now and talks to the Internet.
ive heard that the most recent kernels are relatively unstable (with 2.6 being a testing branch now)
killfire
In any event, I can close out this "trouble ticket" -- following all the steps of the Gentoo migration guide has resulted in what appears to be a stable system with the latest ~x86 kernel, 2.6.10-r1. My main application on this machine -- indeed, on my whole "desktop farm" -- is audio, and the 2.6.10 kernel appears to be the first one with acceptably low latency "out of the box". I'm guessing that the missing step, conversion to "udev", was the source of the networking problem, although I don't understand the mechanisms involved enough to be sure of that.