I'm building some CentOS vm with vmware, with no acces to internet, so I've download and made local repositories, including this one
Then I have installed docker-engine.x86_64, and when starting the docker daemon, I get the following errors :
DEBU docker group found. gid: 993
DEBU Error retrieving the next available loopback: open /dev/loop-control: no such device
ERRO **There are no more loopback devices available.**
ERRO [graphdriver] prior storage driver "devicemapper" failed: loopback attach failed
DEBU Cleaning up old mountid : start.
FATA Error starting daemon: error initializing graphdriver: loopback attach failed
[graphdriver] prior storage driver "devicemapper" failed: devicemapper: Error running deviceCreate (CreatePool) dm_task_run failed
[root]# df -k .
Filesystem blocs de 1K Used Available Used Mounted on
/dev/mapper/centos-root 51887356 2436256 49451100 5% /
Finaly find another solution, instead of using loopback (Which is not recommended), I followed instruction here