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check-before-deployment: add selinux #19703

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check-before-deployment: add selinux
dveeden Dec 16, 2024
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quick-start-with-dm: add selinux note
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4 changes: 4 additions & 0 deletions check-before-deployment.md
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Expand Up @@ -781,3 +781,7 @@ sudo yum -y install numactl
```

To get help information of the `tiup cluster exec` command, run the `tiup cluster exec --help` command.

## Disable SELinux

Use the [getenforce(8)](https://linux.die.net/man/8/getenforce) utility to check if SELinux is disabled or set to permissive. SELinux in Enforcing mode can cause deployment failures. Consult your operating system's documentation for instructions on disabling SELinux.
4 changes: 4 additions & 0 deletions dm/quick-start-with-dm.md
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Expand Up @@ -8,6 +8,10 @@ aliases: ['/docs/tidb-data-migration/dev/get-started/']

This document describes how to migrate data from MySQL to TiDB using [TiDB Data Migration (DM)](/dm/dm-overview.md). This guide is a quick demo of DM features and is not recommended for any production environment.

> **Note:**
>
> If your target machine's operating system supports SELinux, ensure that SELinux is **disabled**.

## Step 1: Deploy a DM cluster

1. Install TiUP, and install [`dmctl`](/dm/dmctl-introduction.md) using TiUP:
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