<div dir="ltr"><div><div><div><div>Serge<br><br></div>This problem w/lxcbr0 disappearing has occurred again on my 15.10 server today. <br>After boot up lxcbr0 is missing.<br><br></div>I will file a launchpad bug and post the info you requested the last time this occurred.<br><br>I'll also leave the system alone after I file the bug until I hear what other data you might want me to gather.<br><br></div>But fyi here is the info also:<br><br>$<b> ifconfig lxcbr0</b><br>lxcbr0: error fetching interface information: Device not found<br><br><br>$<b> journalctl -u lxc-net</b><br>-- Logs begin at Tue 2015-11-03 07:25:22 EST, end at Tue 2015-11-03 10:02:08 EST<br>Nov 03 07:25:48 server3 systemd[1]: Starting LXC network bridge setup...<br>Nov 03 07:25:50 server3 lxc-net[913]: dnsmasq: failed to create listening socket<br>Nov 03 07:25:50 server3 lxc-net[913]: Failed to setup lxc-net.<br>Nov 03 07:25:50 server3 systemd[1]: Started LXC network bridge setup.<br><br>root@server3:/home/bmullan# <b>/usr/lib/x86_64-linux-gnu/lxc/lxc-net stop # note - execution just returns to command line</b><br>root@server3:/home/bmullan# <br><br></div>>> and lxcbr0 is still missing<br><br># <b>ifconfig lxcbr0</b><br>lxcbr0: error fetching interface information: Device not found<br><br>root@server3:/home/bmullan# <b>/usr/lib/x86_64-linux-gnu/lxc/lxc-net start</b><br><br>dnsmasq: failed to create listening socket for <a href="http://10.0.3.1">10.0.3.1</a>: Cannot assign requested address<br>Failed to setup lxc-net.<br>root@server3:/home/bmullan#<br><div><br>$ <b>uname -a</b><br>Linux server3 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 15:35:06 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux<br><br>$ <b>lsb_release -a</b><br>No LSB modules are available.<br>Distributor ID: Ubuntu<br>Description: Ubuntu 15.10<br>Release: <b>15.10</b><br>Codename: wily<br><br><br><b>Launchpad Bug I filed: <a href="https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1512749">https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1512749</a><br><br></b><br></div><div>Brian<br><br></div><div><br><br><br><br><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Oct 30, 2015 at 1:26 PM, brian mullan <span dir="ltr"><<a href="mailto:bmullan.mail@gmail.com" target="_blank">bmullan.mail@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Serge<br><br></div>Just saw your email but the missing lxcbr0 interface reappeared the next day. <br><br>Not sure if it had something to do with a hard power down vs sw reboot as I'd tried rebooting several times when lxcbr0 was missing and it stayed missing.<br><br>Or it may have been an auto apt-get update that fixed something?<span class="HOEnZb"><font color="#888888"><br><br></font></span></div><span class="HOEnZb"><font color="#888888"><div>Brian<br></div><br></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 27, 2015 at 10:59 AM, Serge Hallyn <span dir="ltr"><<a href="mailto:serge.hallyn@ubuntu.com" target="_blank">serge.hallyn@ubuntu.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Quoting brian mullan (<a href="mailto:bmullan.mail@gmail.com" target="_blank">bmullan.mail@gmail.com</a>):<br>
> Norberto<br>
><br>
> Great coincidence as I read your msg to the lxc-users list about the lxcbr0<br>
> bridge<br>
> disappearing after upgrade to Ubuntu 15.10.<br>
<br>
Can you open a launchpad bug and describe there the system you upgraded<br>
from? (i.e. was it stock 14.04 with systemd? desktop, with network-manager?<br>
/etc/network/interfaces contents; and what do you get when you run<br>
<br>
journalctl -u lxc-net<br>
/usr/lib/x86_64-linux-gnu/lxc/lxc-net stop<br>
/usr/lib/x86_64-linux-gnu/lxc/lxc-net start<br>
</blockquote></div><br></div>
</div></div></blockquote></div><br></div>