[lxc-users] re lxcbr0 doesn't exist after upgrade to 15.10

[brian mullan]

Norberto

Great coincidence as I read your msg to the lxc-users list about the lxcbr0
bridge
disappearing after upgrade to Ubuntu 15.10.

I just finished upgrading one of my machines to 15.10 this weekend and
today I noticed
I couldn't start any containers.

Then I noticed there is no lxcbr0 any longer.

I followed same steps as you w/ service lxc-net stop/start etc also.

I looked on launchpad for any bugs files on lxc for this but didn't spot
anything yet however
there were several mentions of one or more systemd problems

$ lsb_release -d
Description:    Ubuntu 15.10

$ sudo lxc --version
0.20

$ uname -a
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

$ sudo lxc-start -n test
lxc-start: lxc_start.c: main: 344 The container failed to start.
lxc-start: lxc_start.c: main: 346 To get more details, run the container in
foreground mode.
lxc-start: lxc_start.c: main: 348 Additional information can be obtained by
setting the --logfile and --logpriority options.

# the logfile I created contained this...

$ more *.log
      lxc-start 1445897600.815 ERROR    lxc_conf -
conf.c:instantiate_veth:2621 - failed to attach 'vethTB8U9R' to the bridge
'lx
cbr0': Operation not permitted
      lxc-start 1445897600.846 ERROR    lxc_conf -
conf.c:lxc_create_network:2904 - failed to create netdev
      lxc-start 1445897600.846 ERROR    lxc_start - start.c:lxc_spawn:920 -
failed to create the network
      lxc-start 1445897600.846 ERROR    lxc_start -
start.c:__lxc_start:1172 - failed to spawn 'test'
      lxc-start 1445897600.846 ERROR    lxc_start_ui - lxc_start.c:main:344
- The container failed to start.
      lxc-start 1445897600.846 ERROR    lxc_start_ui - lxc_start.c:main:348
- Additional information can be obtained by setting t
he --logfile and --logpriority options.
      lxc-start 1445899155.144 ERROR    lxc_conf -
conf.c:instantiate_veth:2621 - failed to attach 'vethGQAYMM' to the bridge
'lx
cbr0': Operation not permitted
      lxc-start 1445899155.170 ERROR    lxc_conf -
conf.c:lxc_create_network:2904 - failed to create netdev
      lxc-start 1445899155.170 ERROR    lxc_start - start.c:lxc_spawn:920 -
failed to create the network
      lxc-start 1445899155.170 ERROR    lxc_start -
start.c:__lxc_start:1172 - failed to spawn 'test'
      lxc-start 1445899160.176 ERROR    lxc_start_ui - lxc_start.c:main:344
- The container failed to start.
      lxc-start 1445899160.176 ERROR    lxc_start_ui - lxc_start.c:main:346
- To get more details, run the container in foregroun
d mode.
      lxc-start 1445899160.176 ERROR    lxc_start_ui - lxc_start.c:main:348
- Additional information can be obtained by setting t
he --logfile and --logpriority options.

Brian
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