Failed to start control plane on btrfs in Fedora 35

[ukazap]

What happened: When creating a cluster, starting the control plane failed.

What you expected to happen: Cluster created successfully.

How to reproduce it (as minimally and precisely as possible): Run kind create cluster

Anything else we need to know?:

I'm running Fedora 35 with luks encrypted btrfs.

There appears to be an issue with ContainerManager in the kubelet.log:

Nov 26 03:51:21 kind-control-plane kubelet[978]: W1126 03:51:21.216180     978 fs.go:588] stat failed on /dev/mapper/luks-0b25d656-ca59-4fa3-8470-dcb0752b7751 with error: no such file or directory
Nov 26 03:51:21 kind-control-plane kubelet[978]: E1126 03:51:21.216207     978 kubelet.go:1384] "Failed to start ContainerManager" err="failed to get rootfs info: failed to get device for dir \"/var/lib/kubelet\": could not find device with major: 0, minor: 39 in cached partitions map"

Additional logs: https://gist.github.com/ukazap/13acef5eebb8aa06413bc58698e7426e

Environment:

• kind version: (use kind version): kind v0.11.1 go1.16.4 linux/amd64
• Kubernetes version: (use kubectl version): v1.22.4
• Docker Podman version: (use docker info): 3.4.2
• OS (e.g. from /etc/os-release): Fedora 35

[aojea]

This is a duplicate of #2411

You can read more about the issue and how to solve it in that link

I'm going to close it so we keep all the information in the same place

Thanks for reporting

[ukazap]

@aojea Thanks for the clarification.

[mbana]

Just to add, please also see #2521 (comment) where I got it running in Fedora 35 with BTRFS.