overlay mount error: mount: special device overlay does not exist

[booraik]

de.py mount 6f51d96cdd2c /root/docker/docker-explorer/mnt
/bin/mount -t overlay overlay -o ro,lowerdir="/var/lib/docker/overlay2/44bbbf57e9be5c160d9addac59b51a83c35d90955b4179ca4d893ae2942ef8e1/diff:/var/lib/docker/overlay2/l/F74KTIZFM3OJPZ44L4Y5OMLQRY:/var/lib/docker/overlay2/l/MULY352PDKNLWPYT22DFGHCJXA:/var/lib/docker/overlay2/l/ZH325HA5PVVFXEPQCWG6VTKIZ3:/var/lib/docker/overlay2/l/HFQVPV3GII75YHNJBJAJBMOMIZ:/var/lib/docker/overlay2/l/BXKFWQ4WPHOZMZHHD6TFT3ITZ7:/var/lib/docker/overlay2/l/KABGVLKHDM2RBUJKGPGWN3X7RU" /root/docker/docker-explorer/mnt
Do you want to mount this container ID: 6f51d96cdd2cff0601c5922917d4a62e593917cd5358d710a344111db1c1e354 on /root/docker/docker-explorer/mnt ?
(ie: run these commands) [Y/n]
Y
mount: special device overlay does not exist

OS: CentOS 7.5.1804
Kernel: 3.10.0-862.14.4.el7.x86_64
Docker: 1.13.1

docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6f51d96cdd2c atmoz/sftp "/entrypoint foo:p..." 4 days ago Up 4 days 0.0.0.0:4444->22/tcp sftp

[rgayon]

Can you try copy pasting the generated command, and remove the quotes there ? ie:

/bin/mount -t overlay overlay -o ro,lowerdir=/var/lib/docker/overlay2/44bbbf57e9be5c160d9addac59b51a83c35d90955b4179ca4d893ae2942ef8e1/diff:/var/lib/docker/overlay2/l/F74KTIZFM3OJPZ44L4Y5OMLQRY:/var/lib/docker/overlay2/l/MULY352PDKNLWPYT22DFGHCJXA:/var/lib/docker/overlay2/l/ZH325HA5PVVFXEPQCWG6VTKIZ3:/var/lib/docker/overlay2/l/HFQVPV3GII75YHNJBJAJBMOMIZ:/var/lib/docker/overlay2/l/BXKFWQ4WPHOZMZHHD6TFT3ITZ7:/var/lib/docker/overlay2/l/KABGVLKHDM2RBUJKGPGWN3X7RU /root/docker/docker-explorer/mnt