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Docker dm_task_run failed error


(Alext0) #1

Today I first time installed docker on Fedora 21. Now, I need change
location of docker images folder from default /var/lib/docker.

After copying files (devicemapper subfolder skipped, docker service
stopped) and changing /etc/sysconfig/docker (adding -g option), I run
docker service again, no problems, devicemapper/metadata created.

Next, I’m trying to pull first image:

docker pull centos

But this error occured:

docker pull centos
latest: Pulling from docker.io/centos

6941bfcbbfca: Download complete 
6941bfcbbfca: Error downloading dependent layers 
41459f052977: Downloading [==========================>                        ] 41.61 MB/77.28 MB
fd44297e2ddb: Error pulling image (latest) from docker.io/centos, endpoint: https://registry-1.docker.io/v1/, Driver devicemapper failed to create image rootfs 6941bfcbbfca7f4f48becd38f2639157042bfd44297e2ddb: Error pulling image (latest) from docker.io/centos, Driver devicemapper failed to create image rootfs 6941bfcbbfca7f4f48becd38f2639157042b5cf9ab8c080f1d8b6d047380ecfc: Error running DeviceCreate (createSnapDevice) dm_task_run failed 
FATA[0013] Error pulling image (latest) from docker.io/centos, Driver devicemapper failed to create image rootfs 6941bfcbbfca7f4f48becd38f2639157042b5cf9ab8c080f1d8b6d047380ecfc: Error running DeviceCreate (createSnapDevice) dm_task_run failed 

If I try this without changing location - ok, no problems.

How to fix it?


(Alext0) #2

Please read answer here: http://stackoverflow.com/questions/30719896/docker-dm-task-run-failed-error