Na terça-feira, recebi uma atualização do Kernel de 3.19.0-20 a 3.19.0-21 no meu laptop (Latitude E6520). Na reinicialização eu tive pânico no kernel, então eu peguei 3.19.0-20 do menu de inicialização e tudo estava bem para o resto do dia. No dia seguinte (ou seja, ontem), o kernel 3.19.0-21 foi inicializado sem problemas e estava tudo em execução OK exceto o daemon do Docker. A reinicialização com o kernel 3.19.0-20 corrige-o. Alguém tem uma ideia de como desbloqueá-lo? Caso contrário, configurarei o 3.19.0-20 como meu kernel padrão até a próxima atualização.
ATUALIZAÇÃO: o Docker 1.7 não resolve o problema. Log é diferente embora (veja abaixo).
Com o kernel 3.19.0-21 e o Docker 1.7.0:
Jun 19 10:06:35 E6520-2 systemd[1]: Starting Docker Socket for the API.
Jun 19 10:06:35 E6520-2 systemd[1]: Listening on Docker Socket for the API.
Jun 19 10:06:35 E6520-2 systemd[1]: Started Docker Application Container Engine.
Jun 19 10:06:35 E6520-2 systemd[1]: Starting Docker Application Container Engine...
Jun 19 10:06:35 E6520-2 docker[3779]: time="2015-06-19T10:06:35.917685581+02:00" level=error msg="[graphdriver] prior storage driver \"aufs\" failed: driver not supported"
Jun 19 10:06:35 E6520-2 docker[3779]: time="2015-06-19T10:06:35.917756197+02:00" level=fatal msg="Error starting daemon: error initializing graphdriver: driver not supported"
Jun 19 10:06:35 E6520-2 systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Jun 19 10:06:35 E6520-2 systemd[1]: Unit docker.service entered failed state.
Jun 19 10:06:35 E6520-2 systemd[1]: docker.service failed.
Partes relevantes de /var/log/syslog esta manhã:
Com o kernel 3.19.0-21:
Jun 18 10:22:27 E6520-2 systemd[1]: Started Docker Application Container Engine.
Jun 18 10:22:27 E6520-2 systemd[1]: Starting Docker Application Container Engine...
…
Jun 18 10:22:27 E6520-2 docker[891]: time="2015-06-18T10:22:27+02:00" level=warning msg="Udev sync is not supported. This will lead to unexpected behavior, data loss and errors"
Jun 18 10:22:27 E6520-2 kernel: [ 7.053225] device-mapper: table: 252:0: thin-pool: unknown target type
Jun 18 10:22:27 E6520-2 kernel: [ 7.053229] device-mapper: ioctl: error adding target to table
Jun 18 10:22:27 E6520-2 docker[891]: time="2015-06-18T10:22:27+02:00" level=info msg="+job serveapi(fd://)"
Jun 18 10:22:27 E6520-2 docker[891]: time="2015-06-18T10:22:27+02:00" level=info msg="Listening for HTTP on fd ()"
Jun 18 10:22:27 E6520-2 docker[891]: time="2015-06-18T10:22:27+02:00" level=fatal msg="Shutting down daemon due to errors: error intializing graphdriver: Error running DeviceCreate (CreatePool) dm_task_run failed"
Jun 18 10:22:27 E6520-2 systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Jun 18 10:22:27 E6520-2 systemd[1]: Unit docker.service entered failed state.
Jun 18 10:22:27 E6520-2 systemd[1]: docker.service failed.
Com o kernel 3.19.0-20:
Jun 18 10:23:16 E6520-2 docker[1000]: time="2015-06-18T10:23:16+02:00" level=info msg="+job serveapi(fd://)"
Jun 18 10:23:16 E6520-2 docker[1000]: time="2015-06-18T10:23:16+02:00" level=info msg="Listening for HTTP on fd ()"
…
Jun 18 10:23:16 E6520-2 kernel: [ 7.009467] aufs 3.x-rcN-20150105
Jun 18 10:23:16 E6520-2 docker[1000]: time="2015-06-18T10:23:16+02:00" level=warning msg="Graphdriver aufs selected. Your graphdriver directory /var/lib/docker already contains data managed by other graphdrivers: devicemapper"
Jun 18 10:23:16 E6520-2 docker[1000]: time="2015-06-18T10:23:16+02:00" level=info msg="+job init_networkdriver()"
…
Jun 18 10:23:17 E6520-2 kernel: [ 7.624158] IPv6: ADDRCONF(NETDEV_UP): docker0: link is not ready
Jun 18 10:23:17 E6520-2 systemd-udevd[358]: Could not generate persistent MAC address for docker0: No such file or directory
Jun 18 10:23:17 E6520-2 avahi-daemon[894]: Joining mDNS multicast group on interface docker0.IPv4 with address 172.17.42.1.
Jun 18 10:23:17 E6520-2 avahi-daemon[894]: New relevant interface docker0.IPv4 for mDNS.
Jun 18 10:23:17 E6520-2 avahi-daemon[894]: Registering new address record for 172.17.42.1 on docker0.IPv4.
Jun 18 10:23:17 E6520-2 NetworkManager[895]: nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
Jun 18 10:23:17 E6520-2 NetworkManager[895]: <info> (docker0): ignoring bridge not created by NetworkManager
…
Jun 18 10:23:17 E6520-2 NetworkManager[895]: <info> devices added (path: /sys/devices/virtual/net/docker0, iface: docker0)
Jun 18 10:23:17 E6520-2 NetworkManager[895]: <info> device added (path: /sys/devices/virtual/net/docker0, iface: docker0): no ifupdown configuration found.
…
Jun 18 10:23:17 E6520-2 systemd[1]: Started ifup for docker0.
Jun 18 10:23:17 E6520-2 systemd[1]: Starting ifup for docker0...
Jun 18 10:23:17 E6520-2 sh[1047]: Unknown interface docker0
Jun 18 10:23:17 E6520-2 kernel: [ 7.632620] ip_tables: (C) 2000-2006 Netfilter Core Team
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=info msg="-job init_networkdriver() = OK (0)"
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=warning msg="Your kernel does not support cgroup swap limit."
Jun 18 10:23:17 E6520-2 systemd[1]: Scope libcontainer-1000-systemd-test-default-dependencies.scope has no PIDs. Refusing.
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=info msg="Loading containers: start."
Jun 18 10:23:17 E6520-2 docker[1000]: ....................................
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=info msg="Loading containers: done."
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=info msg="docker daemon: 1.6.2 7c8fca2; execdriver: native-0.2; graphdriver: aufs"
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=info msg="+job acceptconnections()"
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=info msg="-job acceptconnections() = OK (0)"
Jun 18 10:23:17 E6520-2 docker[1000]: time="2015-06-18T10:23:17+02:00" level=info msg="Daemon has completed initialization"
Então, parecia que o Kernel não estava instalado corretamente: ele também quebrou o WiFi ( lspci -k não estava mostrando nenhum driver para o meu carrinho WiFi).
Após vários dias executando o antigo Kernel exclusivamente, e tendo problemas com o Docker também (devido a uma alteração no Docker 1.7, consulte link ) Eu tentei reinstalar o novo Kernel ( sudo apt-get install --reinstall linux-image-3.19.0-21-generic ) e aconteceu de funcionar.
O Aufs não está mais incluído no pacote do kernel do Ubuntu. (modprobe aufs vai dar um erro)
Porque a sobreposição está incluído desde 3.18. Então você pode usar isso apenas para o docker. (Eu não tenho ideia sobre migração.)
Uma abordagem é iniciar o contêiner do Docker diretamente:
Acabei de iniciar o docker deamon via:
$ sudo docker -d -s overlay
em vez de
$ sudo docker -d
e funcionou para mim.
No entanto, desde que eu queria executar o daemon do docker via
sudo service start docker
Eu tive que editar o arquivo:
$ vim /etc/default/docker
# Docker Upstart and SysVinit configuration file
# Customize location of Docker binary (especially for development testing).
#DOCKER="/usr/local/bin/docker"
# Use DOCKER_OPTS to modify the daemon startup options.
DOCKER_OPTS="--insecure-registry my-repo.de:5000 -s overlay" // here be your config
# If you need Docker to use an HTTP proxy, it can also be specified here.
#export http_proxy="http://127.0.0.1:3128/"
# This is also a handy place to tweak where Docker's temporary files go.
#export TMPDIR="/mnt/bigdrive/docker-tmp"