在桌面 ubuntu 18.04 上尝试 lxd 时，出现以下错误
sudo lxd init
Would you like to use LXD clustering? (yes/no) [default=no]:
Do you want to configure a new storage pool? (yes/no) [default=yes]:
Name of the new storage pool [default=default]:
Name of the storage backend to use (btrfs, ceph, dir, lvm, zfs) [default=zfs]: dir
Would you like to connect to a MAAS server? (yes/no) [default=no]:
Would you like to create a new local network bridge? (yes/no) [default=yes]:
What should the new bridge be called? [default=lxdbr0]:
What IPv4 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]:
What IPv6 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: none
Would you like LXD to be available over the network? (yes/no) [default=no]:
Would you like stale cached images to be updated automatically? (yes/no) [default=yes]
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]:
Error: Failed to create network 'lxdbr0': Failed to run: dnsmasq --strict-order --bind-interfaces --pid-file=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.pid --except-interface=lo --no-ping --interface=lxdbr0 --quiet-dhcp --quiet-dhcp6 --quiet-ra --listen-address=10.139.93.1 --dhcp-no-override --dhcp-authoritative --dhcp-leasefile=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.leases --dhcp-hostsfile=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.hosts --dhcp-range 10.139.93.2,10.139.93.254,1h -s lxd -S /lxd/ --conf-file=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.raw -u lxd: Failed to run: dnsmasq --strict-order --bind-interfaces --pid-file=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.pid --except-interface=lo --no-ping --interface=lxdbr0 --quiet-dhcp --quiet-dhcp6 --quiet-ra --listen-address=10.139.93.1 --dhcp-no-override --dhcp-authoritative --dhcp-leasefile=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.leases --dhcp-hostsfile=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.hosts --dhcp-range 10.139.93.2,10.139.93.254,1h -s lxd -S /lxd/ --conf-file=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.raw -u lxd: dnsmasq: failed to create listening socket for 10.139.93.1: Address already in use
我已经检查过，在运行命令之前，我可以验证 dnsmasq 没有侦听 10.139.93.1。运行上述命令后，它在 10.139.93.1 上运行，因此该错误确实存在，但似乎是自己造成的。
答案1
尽管看起来似乎是自作自受，但 lxd 实际上想要运行另一个 dnsmasq 进程，而您在运行命令后看到的 dnsmasq 实例很可能是系统/现有 dnsmasq 实例，它非常快速地在新创建的 lxd 桥上启动套接字；由lxd init命令创建的 lxd 桥
libvirt 也有同样的问题，但实际上（在 ubuntu 上）通过让一个文件以/etc/dnsmasq.d/libvirt-daemon关键行开头来解决这个问题except-interface=...
lxd 也需要同样的东西，我相信如果您将以下行添加到/etc/dnsmasq.d/lxd：
except-interface=lxdbr0