Docker Volumen Mount-Point Migration

The data in the Docker volume mount-point migration? Yes, and so you can migrate a simple data volume yourself.

The official and safest method is to use the command

mount

to use. But is this even worthwhile for a small, simple volume that is only to be moved to a “mount point” (also known as a “bind mount”)?

Normally, this is much easier to solve.

I’ll show you exactly how in this video:

I generally recommend that you copy the data first before you move it. If something goes wrong – for example, if hidden files are not copied – you still have a backup.
You can always delete the source data later.

Incidentally, the whole thing works in both directions:
Both from the volume to the mount point and vice versa – i.e. from the mount point back into the volume.

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Notes on data backup

When processing storage media: hard disk, virtual hard disk, USB stick, volume, etc., data may be lost, which can have several causes. Liability is generally excluded.

If you follow the topics and examples discussed in this article and use them, I strongly recommend that you make a data backup beforehand!

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If there are access problems:

Transfer ownership of the original data to the newly mounted volume or the mount point to which you copied the data.

Note – Procedure:

• Close the Docker container before you start copying the data.
• Make the desired changes in docker-compose.yml or directly in Portainer.
• Transfer the data – it is best to copy it first, not move it. That way you are on the safe side.
• Then restart the Docker application or container.

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