I had configured thin-pool storage driver for docker on one of the PowerVM lapr. And had created containers. These containers were running STAF tests. I had to reboot the partition. After reboot, i see the docker daemon failed to come up. Below are the details, Steps - 1. Instal 16.04.02 on a vm partition. 2. Install docker.io 3. Configure a thin-pool storage driver for docker daemon. 4. Create some sample containers. 5. Reboot the vm partition. Docker daemon fails to come up. Logs - Machine details - Kernel Build: 4.4.0-53-generic System Name : bamlp4 Model/Type : 8247-22L Platform : powerpc64le uname -a Linux bamlp4 4.4.0-53-generic #74-Ubuntu SMP Fri Dec 2 15:59:36 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux Docker details- root@bamlp4:~# docker info Containers: 4 Running: 3 Paused: 0 Stopped: 1 Images: 4 Server Version: 1.12.1 Storage Driver: devicemapper Pool Name: docker--storage-thinpool Pool Blocksize: 65.54 kB Base Device Size: 10.74 GB Backing Filesystem: xfs Data file: Metadata file: Data Space Used: 12.02 GB Data Space Total: 20.4 GB Data Space Available: 8.373 GB Metadata Space Used: 9.466 MB Metadata Space Total: 213.9 MB Metadata Space Available: 204.4 MB Thin Pool Minimum Free Space: 2.04 GB Udev Sync Supported: true Deferred Removal Enabled: false Deferred Deletion Enabled: false Deferred Deleted Device Count: 0 Library Version: 1.02.110 (2015-10-30) Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: null bridge host overlay Swarm: inactive Runtimes: runc Default Runtime: runc Security Options: apparmor Kernel Version: 4.4.0-53-generic Operating System: Ubuntu 16.04.1 LTS OSType: linux Architecture: ppc64le CPUs: 36 Total Memory: 90.91 GiB Name: bamlp4 ID: BS55:FI5I:4KNB:33H7:ZUAC:AXIU:AOQ4:2PST:22Y7:TNW7:GYT6:WX7A Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ WARNING: No swap limit support Insecure Registries: 127.0.0.0/8 root@bamlp4:~# docker info |grep Udev Udev Sync Supported: true WARNING: No swap limit support service docker status * docker.service - Docker Application Container Engine Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2016-12-13 04:36:32 CST; 2 days ago Docs: https://docs.docker.com Main PID: 8861 (dockerd) Tasks: 111 Memory: 88.5M CPU: 14min 27.708s CGroup: /system.slice/docker.service |- 6941 containerd-shim 30283306a694fb5b18fe03b38505e8218677ab7d1b4b552505b68e7e38737803 /var/run/docker/libcontainerd/30283306a694fb5b18fe03b38505e8218677ab7d1b4b552505b |- 8861 /usr/bin/dockerd -H fd:// -s devicemapper --storage-opt=dm.thinpooldev=/dev/mapper/docker--storage-thinpool --fixed-cidr=172.17.128.0/18 --mtu 1462 |- 8993 containerd-shim c83c781710f5c9198067fa74d3f40407d4bb7f7991a04d59cbe824e3903a877d /var/run/docker/libcontainerd/c83c781710f5c9198067fa74d3f40407d4bb7f7991a04d59cbe |-10931 containerd -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --shim containerd-shim --metrics-interval=0 --start-timeout 2m --state-dir /var/run/dock `-58887 containerd-shim 1b4ec092cadfd448a10436662fe35d6abf4e7c9a612da327ae8dd13c94e94f1a /var/run/docker/libcontainerd/1b4ec092cadfd448a10436662fe35d6abf4e7c9a612da327ae8 Dec 13 04:36:29 bamlp4 dockerd[8861]: time="2016-12-13T04:36:29.687120000-06:00" level=info msg="Loading containers: start." Dec 13 04:36:29 bamlp4 dockerd[8861]: time="2016-12-13T04:36:29.707970000-06:00" level=info msg="Firewalld running: false" Dec 13 04:36:31 bamlp4 dockerd[8861]: time="2016-12-13T04:36:31.225112000-06:00" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option Dec 13 04:36:32 bamlp4 dockerd[8861]: time="2016-12-13T04:36:32.038062000-06:00" level=info msg="Loading containers: done." Dec 13 04:36:32 bamlp4 dockerd[8861]: time="2016-12-13T04:36:32.039030000-06:00" level=info msg="Daemon has completed initialization" Dec 13 04:36:32 bamlp4 dockerd[8861]: time="2016-12-13T04:36:32.039084000-06:00" level=info msg="Docker daemon" commit=23cf638 graphdriver=devicemapper version=1.12.1 Dec 13 04:36:32 bamlp4 dockerd[8861]: time="2016-12-13T04:36:32.059172000-06:00" level=info msg="API listen on /var/run/docker.sock" Dec 13 04:36:32 bamlp4 systemd[1]: Started Docker Application Container Engine. lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 20G 0 disk |-sda1 8:1 0 7M 0 part |-sda2 8:2 0 19.1G 0 part / `-sda3 8:3 0 881M 0 part [SWAP] sdb 8:16 0 20G 0 disk |-docker--storage-thinpool_tmeta 252:0 0 204M 0 lvm | `-docker--storage-thinpool 252:2 0 19G 0 lvm | |-docker-8:2-398313-6ebd9e327696fa07625788b1a482b89ea7f12fc8e07a430a9470ff979de57832 | | 252:3 0 10G 0 dm /var/lib/docker/devicemapper/mnt/6ebd9e327696fa07625788b1a482b89ea7f12fc8e07a430a9470ff979de57832 | |-docker-8:2-398313-0deb4334768d334bea71efc51a1e4a16118e5bc0912295dab962433b4b14bd5b | | 252:4 0 10G 0 dm /var/lib/docker/devicemapper/mnt/0deb4334768d334bea71efc51a1e4a16118e5bc0912295dab962433b4b14bd5b | `-docker-8:2-398313-7c943f7afd160b4ad7747291813519ab6f3103a422d353a137e01ea68fbf94b6 | 252:5 0 10G 0 dm /var/lib/docker/devicemapper/mnt/7c943f7afd160b4ad7747291813519ab6f3103a422d353a137e01ea68fbf94b6 `-docker--storage-thinpool_tdata 252:1 0 19G 0 lvm `-docker--storage-thinpool 252:2 0 19G 0 lvm |-docker-8:2-398313-6ebd9e327696fa07625788b1a482b89ea7f12fc8e07a430a9470ff979de57832 | 252:3 0 10G 0 dm /var/lib/docker/devicemapper/mnt/6ebd9e327696fa07625788b1a482b89ea7f12fc8e07a430a9470ff979de57832 |-docker-8:2-398313-0deb4334768d334bea71efc51a1e4a16118e5bc0912295dab962433b4b14bd5b | 252:4 0 10G 0 dm /var/lib/docker/devicemapper/mnt/0deb4334768d334bea71efc51a1e4a16118e5bc0912295dab962433b4b14bd5b `-docker-8:2-398313-7c943f7afd160b4ad7747291813519ab6f3103a422d353a137e01ea68fbf94b6 252:5 0 10G 0 dm /var/lib/docker/devicemapper/mnt/7c943f7afd160b4ad7747291813519ab6f3103a422d353a137e01ea68fbf94b6 sdc 8:32 0 20G 0 disk sdd 8:48 0 20G 0 disk |-sdd1 8:49 0 5G 0 part |-sdd2 8:50 0 5G 0 part |-sdd3 8:51 0 5G 0 part `-sdd4 8:52 0 5G 0 part sde 8:64 0 50G 0 disk sdf 8:80 0 50G 0 disk Containers that were up and running - CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c83c781710f5 23c492753bd5 "/bin/sh -c ./root/NF" 2 days ago Up 2 days bamlp4nfsclnt 30283306a694 kte2.isst.aus.stglabs.ibm.com:5000/staf "/bin/bash" 2 days ago Up 2 days sharp_feynman 28bd3cf10714 32d545c3ea01 "/bin/sh -c ./staf_io" 2 days ago Exited (1) 2 days ago bamlp4-io 1b4ec092cadf 590e44f15214 "/bin/sh -c ./staf_ba" 2 days ago Up 2 days bamlp4-base root@bamlp4:~# Filesystem Inodes IUsed IFree IUse% Mounted on udev 219623 761 218862 1% /dev tmpfs 220469 931 219538 1% /run /dev/sda2 1254176 100228 1153948 8% / tmpfs 220469 1 220468 1% /dev/shm tmpfs 220469 6 220463 1% /run/lock tmpfs 220469 16 220453 1% /sys/fs/cgroup 10.33.11.31:/data 26206208 26488 26179720 1% /data 10.33.11.31:/images 40207920 21681 40186239 1% /images 10.33.11.31:/kte 49745648 614507 49131141 2% /kte 10.33.11.31:/distros 314572800 167916 314404884 1% /distros kte2:/kte 38864896 189000 38675896 1% /mnt kte2:/kte2fs 38864896 189000 38675896 1% /kte2fs tmpfs 220469 4 220465 1% /run/user/0 kte2:/docklog 38864896 189000 38675896 1% /docklog /dev/dm-3 5242368 45859 5196509 1% /var/lib/docker/devicemapper/mnt/6ebd9e327696fa07625788b1a482b89ea7f12fc8e07a430a9470ff979de57832 shm 982325 1 982324 1% /var/lib/docker/containers/1b4ec092cadfd448a10436662fe35d6abf4e7c9a612da327ae8dd13c94e94f1a/shm /dev/dm-4 5242368 19312 5223056 1% /var/lib/docker/devicemapper/mnt/0deb4334768d334bea71efc51a1e4a16118e5bc0912295dab962433b4b14bd5b shm 982325 1 982324 1% /var/lib/docker/containers/30283306a694fb5b18fe03b38505e8218677ab7d1b4b552505b68e7e38737803/shm /dev/dm-5 5242368 30980 5211388 1% /var/lib/docker/devicemapper/mnt/7c943f7afd160b4ad7747291813519ab6f3103a422d353a137e01ea68fbf94b6 shm 982325 1 982324 1% /var/lib/docker/containers/c83c781710f5c9198067fa74d3f40407d4bb7f7991a04d59cbe824e3903a877d/shm root@bamlp4:/tmp# == Comment: #1 - Vinutha GS