Comment 5 for bug 1452601

This bug affects gitian-builder when used with lxc. Gitian-builder is the reproducible build tools used by Bitcoin Core and other projects. The relevant gitian-builder bug is https://github.com/devrandom/gitian-builder/issues/95.

I have confirmed this bug with a 15.04 chroot. As you can see from the gitian-builder issue, GitHub user @droark also experienced the issue when using 15.04.

The relevant output from my 15.04 chroot:

root@debian:~/gitian-builder# make-clean-vm --suite trusty --arch amd64
sudo: unable to resolve host debian
lxc-execute: conf.c: instantiate_veth: 2660 failed to attach 'vethU5U6JE' to the bridge 'br0': Operation not permitted
lxc-execute: conf.c: lxc_create_network: 2943 failed to create netdev
lxc-execute: start.c: lxc_spawn: 914 failed to create the network
lxc-execute: start.c: __lxc_start: 1164 failed to spawn 'gitian'