docker: failed to register layer: unknown file type for /var/lib/docker/overlay

[KiaraGrouwstra]

$ docker pull andrey01/steam
failed to register layer: unknown file type for /var/lib/docker/overlay/e18e667f5559d911a6851eebd8ae0acf528e719fc33e58b826c7e39a3e82b023/root/dev/full

$ docker pull kalilinux/kali-linux-docker
$ docker pull nvcr.io/nvidia/rapidsai/rapidsai
$ docker pull nvcr.io/partners/mapd:3.2.2
$ docker pull nvcr.io/nvidia/tensorflow:19.03-py3
$ docker pull nvcr.io/nvidia/mxnet:19.03-py3

$ cd docker-wine-steam
$ bash ./builder.sh
Can't add file to tar: archive/tar: sockets not supported
# https://unix.stackexchange.com/questions/437606/cant-add-file-to-tar-archive-tar-sockets-not-supported?rq=1
# retry:
failed to register layer: unknown file type for /var/lib/docker/overlay/3c8076775dee9487a822d79a18ba6391019620905745de1ecd4f993a335ef1d3/root/dev/full
# $ bash ./launcher.sh

[KiaraGrouwstra]

this maybe had to do with my gnome branches not yet having commented the docker root path line.

[KiaraGrouwstra]

nope, wasn't it. search hits suggested different file systems or linux kernels. the latter sounds plausible. that'd sound like a wider issue yet not seeing hits on nixpkgs, hm.

[KiaraGrouwstra]

$ ls /var/lib/docker/
$ sudo chown -R tycho /var/lib/docker
$ sudo chmod -R 0700 /var/lib/docker

... I'm getting the impression the ownership/permissions of my /var/lib/docker/ and subdirectories are messed up in general. it also feels like these commands haven't quite fixed it recursively. wonder if there's a nice way to fix these.

[KiaraGrouwstra]

my nix config has docker.storageDriver = "overlay";, which seems like the obvious culprit.

[KiaraGrouwstra]

commenting that fixed it.