<div class="gmail_quote">On Mon, Feb 18, 2013 at 7:38 AM, Gene Heskett <<a href="mailto:gheskett@wdtv.com" target="_blank">gheskett@wdtv.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Greetings all; Yesterday, I pulled my laptop out of the case for the first time in several months. So it was not 'uptodate'. As usual, I had a hell of a time making networking work and finally in my putzing around I made wlan1 work, which is a usb interfaced 802/11 linksys thingy. With a cat5 plugged directly into a hub in the shop (my whole place is wired, plus 2 wireless AP's), I could not get an eth0 connection even when doing 'static'. I think it was looking for IPv6 and rejecting IPv4, which all of my local 192.168.xx.xx net is. No IPv6 has made it to my neighborhood anyway. FWIW I have had to disable ipv6 stuff in 2 of the other 4 machines here in order to make ipv4 usable, using the recipe at <<a href="http://www.webupd8.org/2010/05/how-to-disable-ipv6-in-ubuntu-1004.html" target="_blank">http://www.webupd8.org/2010/05/how-to-disable-ipv6-in-ubuntu-1004.html</a>> I used a procedure which installed a custom combo of kernel 3.5.7 + xenomai, which appeared to install without any gotchas. But when I was done, I noted the update-manager had checked & wanted to update some stuff, so before rebooting, I let it, 209 packages total. One of the packages I saw go by was grub. Since I have 4 other machines here running this same install cd, and they aren't having any grub problems I didn't think anything of it. The update-manager finished, I had it recheck, nothing left to do so I rebooted. No grub menu, and it tried to boot straight into the new 3.5.7+xenomai kernel, doing a kernel panic .6 seconds later when it wasn't able to mount sda1 as boot. NDI why. Wash with power button, rinse and repeat for probably 50 stop-starts on the hard drive while looking for the magic keyboard combo to bring up the grub menu. Go on IRC asking, get told quite a few as it seems few actually knew, and about an hour later finally hit on left shift+ctl, dancing on that at powerup finally gets me the grub menu. Boot to old kernel, a custom built 2.6.32+RTAI kernel as this install cd is a custom spin from the <a href="http://linuxcnc.org" target="_blank">linuxcnc.org</a> site that we have been running CNC machining tools with since 10.04 LTS came out. IOW, well tested, rock solid. No networking at all, usb detection of my plugging in the radio dongle is not recorded in dmesg, not a peep. This lappy has a built in radio, but its a bcm4318, and not even the windows drivers have ever been able to make it work reliably. It is disabled in the bios but that didn't stop dmesg from mewling about it. Its well known that the version of network-manager in 10.04 LTS is broken, no support for wpa_supplicant, and despite my requests over the last 3 years, no update to that has been done, so it usually gets disabled and host file based 'static' is configured in /etc/network/interfaces. Even that isn't working now. So, I will probably wind up re-installing from that same cd when I can find a copy. Several laying around in the midden heap a working machine shop can become but I've not excavated that deep yet. But what was done to grub that makes it bypass the menu, and what was done to the networking or to udev to totally disable it? Also, rebooting to test a network config change is a PIMA, so what is the ubuntu equivalent of "sudo service network restart"? Thanks for any advice here. I'd like to fix it rather than re-install. Heck, I might even learn something! Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <<a href="http://coyoteden.dyndns-free.com:85/gene" target="_blank">http://coyoteden.dyndns-free.com:85/gene</a>> is up! My views <<a href="http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml" target="_blank">http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml</a>> core error - bus dumped I was taught to respect my elders, but its getting harder and harder to find any... -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </blockquote></div> Hi Gene, Does this special linux spin have all the drivers? i.e. driver for your eth0 or wlan0 ? If it does then yout should be able to run ifconfig eth0 and it should at least output info about it. If no info, then no driver!! If there is info, then attack the NM. Can you see the NM icon on the graphical desktop? If yes, right click the icon and select Edit and take it from there.