On Sat, Jul 6, 2013 at 3:41 PM, Gene Heskett <[email protected]> wrote:
> On Saturday 06 July 2013 15:15:19 Gene Heskett did opine: > > Progress report, Sam. > > I had one hell of a time with the 12.04.2 LTS install, seems they have some > new, undocumented way to carve(read fsck up) a new /etc/resolv.conf link at > every reboot, and it was writing a blank file, so I couldn't get past the > router to get online. The gui tools to adjust that never asked for a sudo > password, so they couldn't fix it even if you entyered known good config > data. > > Finally solved by copying my existing resolv.conf to the new install and > doing a chattr +i on it. My post to the ubuntu list has a thin cloud of > smoke questioning the genius that decided to screw with that. > > Anyway, the xenomai version of LCNC is now alive and well, with a few > hiccups along the way, like it took a total reboot to actually make me a > member of the group xenomai, but after that, and manually removing libgl- > dev so the mesa versions would install, and its apparently all working. > > Worst case base thread latency is nominally 14.6 u-secs, and servo thread > is about 17 u-secs. However, the xenomai kernel has no parport module, so > even in RIP mode, the std sherline3axis will bail out at startup. Sim > works fine. Would the isolcpus argument to the kernel improve that? AFAIK > that hasn't been done (yet). That, and the parport issue, and I believe it > could run my mill just as well as its being run now. I left the latency- > test running for over an hour and saw no SMI glitches. > > Some glitches (or changes) in the build of the xenomai kernal I think, my > dmesg|grep xenomai was a very short list, with the last 8 lines of the > NewRTInstall page 2 listing went missing, and 2 lines of usb discovery > replaced them. > > So, progress I think, promising even. Thanks for the boot in the butt to > get me moving. > > Cheers, Gene > Gene, Bit me once too. The resolv.conf is now handled by resolvconf. If you want a persistent nameserver setup, edit /etc/network/interfaces and add this line: dns-nameservers nnn.nnn.nnn.nnn Substituting the correct IP address for the n's of course. The man pages for resolvconf go into a bit more detail. ;-) Mark ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
