Deleting devicemapper after changing storage driver

Asked May 30 '17 at 03:25

Active May 30 '17 at 03:25

Viewed 181 times

Long time listener, first time caller.

I've inherited a CI box running docker and I'm looking to clear some space. Running docker info tells me that the current storage driver is overlay. Despite that, I can see /var/lib/docker/devicemapper still exists and its eating up 10G of space.

With that in mind, is it safe to delete this folder? How can I tell if there are any references to this?

Thanks for your help!

Nick

asked May 30 '17 at 03:25

lolh4x

What is the output of `findmnt /var/lib/docker/devicemapper` ? – Ricardo Branco May 30 '17 at 03:45
`findmnt` returns nothing in this case. – lolh4x May 30 '17 at 03:56
And `sudo dmsetup status` ? – Ricardo Branco May 30 '17 at 03:57
That returns `No devices found` – lolh4x May 30 '17 at 03:58
You can safely remove the directory. – Ricardo Branco May 30 '17 at 04:02
Legend, thank you! – lolh4x May 30 '17 at 04:05

Deleting devicemapper after changing storage driver

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