# Cgroup子系统无法挂载

## 问题描述

内核版本： 5.4.56-200.el7.x86\_64

docker报错

```
May 13 16:54:26 8b26d7a8 dockerd[44352]: time="2021-05-13T16:54:26.565235530+08:00" level=warning msg="failed to load plugin io.containerd.snapshotter.v1.devmapper" error="devmapper not configured"
May 13 16:54:26 8b26d7a8 dockerd[44352]: time="2021-05-13T16:54:26.565525512+08:00" level=warning msg="could not use snapshotter devmapper in metadata plugin" error="devmapper not configured"
May 13 16:54:26 8b26d7a8 dockerd[44352]: time="2021-05-13T16:54:26.574734345+08:00" level=warning msg="Your kernel does not support CPU realtime scheduler"
May 13 16:54:26 8b26d7a8 dockerd[44352]: time="2021-05-13T16:54:26.574792864+08:00" level=warning msg="Your kernel does not support cgroup blkio weight"
May 13 16:54:26 8b26d7a8 dockerd[44352]: time="2021-05-13T16:54:26.574800326+08:00" level=warning msg="Your kernel does not support cgroup blkio weight_device"
```

kubelet报错

![kubelet](/files/E5Ylg3eyy0FEBr9GPw5b)

## 解决

cgroup问题解决：

1、curl <https://pi-ops.oss-cn-hangzhou.aliyuncs.com/scripts/cgroupfs-mount.sh> | bash

2、重启设备即可解决


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://k8s.huweihuang.com/project/trouble-shooting/node/cgroup-subsystem-not-mount.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.