How to copy /var/lib/docker with overlayfs directory structure with data *as-is* without increasing the storage space How to copy /var/lib/docker with overlayfs directory structure with data *as-is* without increasing the storage space docker docker

How to copy /var/lib/docker with overlayfs directory structure with data *as-is* without increasing the storage space


docker kernel rsync coreos overlays

It turned out that docker is using hardlinks within those directories under /var/lib/docker/overlay. Using -H with rsync (copy hardlinks as hardlinks) solved the issue.

rsync -avPHSX /var/lib/docker /new/partition/

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