Re: need recommendation for a realtime kernel to build for an armhf
On Saturday 15 June 2019 04:07:36 pm Alan Corey wrote:
> What does just ifconfig (by itself) say? And route by itself? What's
> your /etc/network/interfaces file like?
>
> I think the 69.254.163.253 is the IP assigned dynamically by your
> router. Or it's your router's IP. But I think 69.254.163.x is your
> outside IP.
>
Theres a missing 1 in front of the 69's above. The router ip from this
side is 192.168.71.1, and 149.$$.$$.$$ from the outside world. ping my
web page for it. While there with a browser, note the lcnc uspace builds
of linuxcnc-2.9.0-pre0 for your experimental pleasure on your pi 3b's.
Works well on my pi when the jessie card is plugged in.
> I'm not familiar with ip.
Get familiar with it Alan, despite our objections, both ifconfig and
route have been expunged from the stretch and newer repo's. I haven't
figured it out either. And the man pages may as well have been written
in swahili or navajo. Even the so-called examples can't be made to work.
> Route shows me:
> upstairs# route
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref
> Use Iface default phone 0.0.0.0 UG 0
> 0 0 wlan0 192.168.0.0 0.0.0.0 255.255.255.0 U
> 0 0 0 eth0 192.168.43.0 0.0.0.0 255.255.255.0
> U 0 0 0 wlan0 upstairs#
>
> Where phone (in my hosts file as 192.168.43.1) is my default gateway,
> I think DHCP ,makes that the default route, maybe I set it manually
> (not in a year or more).
>
> You can play with the metric numbers too if you want to assign
> priorities. I'm procrastinating trying to get wifi, dialup and an
> ethernet printer working on an XP box. It thinks the internet is the
> printer, it goes nowhere until I disable that interface.
>
> Ah, OK, I cheated and looked it up:
> route add default gw {IP-ADDRESS} {INTERFACE-NAME}
> from
> https://www.cyberciti.biz/faq/linux-setup-default-gateway-with-route-c
>ommand/
>
> You need both "default and "gw" in there.
>
> On 6/15/19, Gene Heskett <gheskett@shentel.net> wrote:
> > Greetings;
> >
> > I am about to install a stretch on an r-pi-3b. Then let it update to
> > the latest, with an eye toward a buster update when its released.
> >
> > But this will be driving a lathe, so it needs the best latency
> > figures that can be obtained by later linux-rt kernels, prefereably
> > in the 4.19.whatever category. I have some debs already built that
> > once installed, should handle that.
> >
> > Some later:
> >
> > armhf Stretch is now installed but host file style networking is not
> > making the transition from local domain to outside network because
> > any ping to an outside address such as yahoo.com IS NOT coming from
> > the local domain address, but the avahi-daemon returned address. I
> > my networking scheme there is no such machine defined anyplace. Only
> > "localhost" defined anyplace is 127.0.0.1 in the /etc/hosts file
> >
> > A sudo grep -R 169. * returns only those lines I commented out. and
> > restarted networking each time.
> >
> > Where the heck is machinename.local, defined as 169.254.x.x coming
> > from, and more importantly how do I get rid of it once and forever?
> >
> > ip a shows duplicate inet lines for eth0 and I can't get rid of this
> > one:
> >
> > inet 169.254.163.253/16 brd 169.254.255.255 scope global eth0
> > valid_lft forever preferred_lft forever
> >
> > ip r returns this:
> >
> > default dev eth0 proto kernel scope link src 169.254.163.253 metric
> > 202 169.254.0.0/16 dev eth0 proto kernel scope link src
> > 169.254.163.253 metric 202
> > 192.168.71.0/24 dev eth0 proto kernel scope link src 192.168.71.12
> >
> > And obviously I need to make the 3rd line the default.
> >
> > How do I fix this?
> >
> > Thanks all.
> >
> > Cheers, Gene Heskett
> > --
> > "There are four boxes to be used in defense of liberty:
> > soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author)
> > If we desire respect for the law, we must first make the law
> > respectable. - Louis D. Brandeis
> > Genes Web page <http://geneslinuxbox.net:6309/gene>
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>
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