Dm Initialization Is Not Ready

systemctl show docker.service | grep Before, After

lsmod | grep dm_mod

lsmod | grep dm_mod

Then reload and restart:

Error starting daemon: error initializing graphdriver: driver not supported dm initialization is not ready

Sometimes, the error isn't a timing issue but a missing piece. If the dm_mod module (or dm_crypt , dm_raid , etc.) was accidentally removed from the kernel configuration, or if the initramfs image was generated without including the necessary drivers, the system literally cannot initialize DM.

If missing, DM is not properly initialized. If present but the error still occurs, the kernel’s DM ioctl interface is not ready. systemctl show docker

This pragmatic approach works around transient initialization delays.

The message "DM initialization is not ready" essentially means: systemctl show docker.service | grep Before

For Docker: