[lxc-users] lxc not able to mount root dir

[Sujith Bhaskaran]

Hi ,


I am trying to run docker with lxc driver and ended up in weird problem.


lxc-start: conf.c: mount_entry: 2049 No such file or directory - failed to
mount 'tmpfs' on '/usr/lib64/lxc/rootfs///run'

lxc-start: conf.c: lxc_setup: 4163 failed to setup the mount entries for
'0f0a23c52b385b795a2b96f4801e8899a9494dd17dee869831200052b8aeaf16'

lxc-start: start.c: do_start: 688 failed to setup the container

lxc-start: sync.c: __sync_wait: 51 invalid sequence number 1. expected 2

lxc-start: start.c: __lxc_start: 1080 failed to spawn
'0f0a23c52b385b795a2b96f4801e8899a9494dd17dee869831200052b8aeaf16'

lxc-start: lxc_start.c: main: 342 The container failed to start.

lxc-start: lxc_start.c: main: 346 Additional information can be obtained by
setting the --logfile and --logpriority options.


This happens only when I use docker1.5 or greater.


uname -r

3.10.0-229.el7.x86_64


docker info

Containers: 4

Images: 10

Storage Driver: devicemapper

 Pool Name: docker-253:0-67150313-pool

 Pool Blocksize: 65.54 kB

 Backing Filesystem: xfs

 Data file: /dev/loop2

 Metadata file: /dev/loop3

 Data Space Used: 849 MB

 Data Space Total: 107.4 GB

 Data Space Available: 50.24 GB

 Metadata Space Used: 1.425 MB

 Metadata Space Total: 2.147 GB

 Metadata Space Available: 2.146 GB

 Udev Sync Supported: true

 Data loop file: /var/lib/docker/devicemapper/devicemapper/data

 Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata

 Library Version: 1.02.93-RHEL7 (2015-01-28)

Execution Driver: lxc-1.0.7

Kernel Version: 3.10.0-229.el7.x86_64

Operating System: Red Hat Enterprise Linux Server 7.0 (Maipo)

CPUs: 40

Total Memory: 377.7 GiB

Name: docker97.ops.svqe.jigsaw.com

ID: QTBG:5XIR:DLUS:UTCY:FZLY:OSFX:I4VF:GK24:VRDC:R2NU:CMLB:IA7Z

Debug mode (server): true

Debug mode (client): false

Fds: 13

Goroutines: 16

EventsListeners: 0

Init SHA1: 877abac276b80033317bbab425062215d5c55837

Init Path: /usr/libexec/docker/dockerinit

Docker Root Dir: /var/lib/docker


Docker run command:-


docker run --net=none -m=4M --lxc-conf="lxc.network.type = veth"
--lxc-conf="lxc.network.ipv4 = <ip>/24"
--lxc-conf="lxc.network.ipv4.gateway = gw" --lxc-conf="lxc.network.link =
br0" --lxc-conf="lxc.network.name = eth0" --lxc-conf="lxc.network.flags =
up" --lxc-conf="lxc.loglevel = 1" -i -t rh7:1 /bin/bash

can you let me know what is happening here and How I can get it working?




-- 
Thanks & Regards
Sujith Bhaskaran
650-653-2093
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